CN115012309B - Overhead supporting device for large cantilever bent cap and construction method - Google Patents

Abstract

An overhead supporting device and a construction method for a large cantilever bent cap, which comprises a column group device arranged on a foundation of the large cantilever bent cap, a bracket device arranged on the column group device and a bottom plate (91) arranged on the bracket device, wherein overhead supporting is realized on the bracket device through the column group device, arranging beam supporting is realized on the bottom plate (91) through the bracket device, an overhead beam frame is used as a supporting body, concrete supporting is realized on a road surface through the bottom plate (91), and a scaffold is not used as overhead supporting, so that the construction efficiency of the large cantilever bent cap is improved.

Description

Overhead supporting device for large cantilever bent cap and construction method

Technical Field

The invention relates to an overhead supporting device and a construction method, in particular to an overhead supporting device and a construction method for a large cantilever bent cap.

Background

In order to solve the problem of road congestion, a quick road is used as an effective way, the existing quick road is in the form of a main road overhead and an auxiliary road ground, the most commonly used supporting form of the overhead is a bearing platform, an pier column stands in the middle of the road, and a large cantilever bent cap is arranged at the upper part of the overhead to be used as a supporting structure of the overhead road, so that the overhead supporting device for the large cantilever bent cap is an important building component, in the existing overhead supporting device for the large cantilever bent cap, as a cast-in-situ large cantilever structure, a steel pipe fastener scaffold or a disc buckle scaffold is used as an overhead support, because the scaffold construction technology has the technical defects of large investment, long working procedure period and large potential safety hazard, the construction efficiency of the large cantilever bent cap is affected,

The technical scheme of the invention is made based on technical books provided by the applicant in 2022, 4 and 15 days and having the technical problem of solving the actual technical problem in the working process, and the technical problems, technical characteristics and technical effects existing in the similar patent literature and background technology are obtained through retrieval.

Disclosure of Invention

The object of the invention is an overhead support for a large cantilever capping beam,

The invention discloses a construction method of an overhead supporting device for a large cantilever bent cap.

In order to overcome the technical defects, the invention aims to provide an overhead supporting device for a large cantilever bent cap and a construction method, so that the construction efficiency of the large cantilever bent cap is improved.

In order to achieve the above purpose, the invention adopts the following technical scheme: an overhead supporting device for a large cantilever bent cap comprises a column group device arranged on a foundation of the large cantilever bent cap, a bracket device arranged on the column group device and a bottom plate arranged on the bracket device.

Due to the design of the upright post set device, the bracket device and the bottom plate, the bracket device is used for carrying out overhead support, the bracket device is used for carrying out beam arrangement support on the bottom plate, the overhead beam frame is used as a support body, the pavement concrete support is realized through the bottom plate, and the scaffold is not used as the overhead support, so that the construction efficiency of the large cantilever bent cap is improved.

The invention designs that the column group device, the bracket device and the bottom plate are mutually connected in a mode that the overhead beam frame is used as a supporting body.

The invention designs a bracket device which is connected with a column group device and a bottom plate in a mode of using an array beam to support and realize an overhead beam frame as a supporting body.

The invention designs a column group device which comprises a left outer column group, a left inner column group, a right inner column group and a right outer column group.

The invention provides that the bracket device comprises longitudinal beams and support beam rails.

The technical effects of the five technical schemes are as follows: the vertical support of the overhead beam is realized by the upright column group device, the transverse support of the arrangement beam is realized by the bracket device, and the support frame structure of the bottom plate is simplified.

The invention also comprises a first accessory device which is arranged on the column group device and is arranged as a connecting frame.

The invention is designed to further comprise a second attachment means arranged between the column group means and the bracket means, the second attachment means being arranged as a truss.

The invention is designed to further comprise a third attachment means arranged on the carrier means, the third attachment means being arranged as a web.

The technical effects of the three technical schemes are as follows: the integrated installation of other components is realized, and the technical effect of the invention is expanded.

The invention designs that longitudinal beams are respectively arranged on a left outer column group, a left inner column group, a right inner column group and a right outer column group, a connecting frame is arranged between the left inner column group and the right inner column group, trusses are respectively arranged between the longitudinal beams and the left outer column group, between the left inner column group, between the right inner column group and the right outer column group, web plates are arranged between the longitudinal beams, and support beam rails are arranged between a bottom plate and the longitudinal beams.

The technical effects of the above technical scheme are as follows: the basic technical scheme of the invention is formed by the left outer column group, the left inner column group, the right outer column group, the connecting frame, the truss, the longitudinal beam, the web plate, the support beam rail and the bottom plate, and the technical problem of the invention is solved.

The invention designs that the bottom plate is a rectangular sheet body, the lower end face part of the bottom plate is connected with the support beam rail, and the upper end face part of the bottom plate is provided with a pouring concrete pavement.

The invention designs that the left outer column group, the left inner column group, the right inner column group and the right outer column group are respectively arranged to comprise a first column part, a second column part, a first beam part, a second beam part and a third beam part, the lower parts of the inner side surfaces of the first column part and the lower parts of the inner side surfaces of the second column part are respectively arranged to be connected with the end head of the first beam part, the middle parts of the inner side surfaces of the first column part and the middle parts of the inner side surfaces of the second column part are respectively arranged to be connected with the end head of the second beam part, the upper parts of the inner side surfaces of the first column part and the upper parts of the inner side surfaces of the second column part are respectively arranged to be connected with the end head of the third beam part, the upper end parts of the first column part and the upper end parts of the second column part are respectively arranged to be connected with a truss and a longitudinal beam, and connecting frames are respectively arranged between the first column part on the left inner column group and the first column part on the right inner column part, the second column part on the left inner column group and the second column part on the right inner column part, and the upper parts of the first column part are respectively arranged to be in a round shape.

The technical effects of the above technical scheme are as follows: the trapezoid frames are supported, and the arrangement of the through channels at the lower parts of the large cantilever bent caps is optimized.

The invention designs that the longitudinal beam is arranged as a rectangular column body, the end face of the lower end of the longitudinal beam is respectively connected with the left outer column group, the left inner column group, the right outer column group and the truss, the end head of the longitudinal beam is connected with the web plate, and the end face of the upper end of the longitudinal beam is connected with the support beam rail.

The technical effects of the above technical scheme are as follows: the coherent support arrangement of the beam body is realized.

The invention designs that the support beam rail comprises a rail part, a left seat part and a right seat part, wherein the left seat part and the right seat part are respectively arranged at the end heads of the rail part, the inner side surface part of the left seat part and the inner side surface part of the right seat part are respectively provided with a containing groove body, the containing groove body of the left seat part and the containing groove body of the right seat part are respectively connected with the lower end edge body of the rail part, the upper end edge body of the rail part is connected with a bottom plate, the lower end surface part of the left seat part and the lower end surface part of the right seat part are respectively connected with a longitudinal beam, the rail part is an I-beam, and the left seat part and the right seat part are respectively provided with rectangular block bodies.

The technical effects of the above technical scheme are as follows: by left seat and right seat, realized the centre gripping fixed connection to rail portion, increased the area of being connected with the longeron, improved the joint strength with the longeron.

The invention designs that the connecting frame is arranged as an X-shaped frame body, one end of the connecting frame is connected with the left inner column group, and the other end of the connecting frame is connected with the right inner column group.

The technical effects of the above technical scheme are as follows: the connection strength of the left inner column group and the right inner column group is achieved, and the support strength of the longitudinal beam is improved.

The invention designs that the truss comprises a joist part and a built-in beam part, wherein the lower end corner part of the built-in beam part is connected with the upper end face part of the joist part, the ends of the joist part are respectively connected with the left outer column group, the left inner column group, the right inner column group and the right outer column group, the upper end corner part of the built-in beam part is connected with the lower end face part of the longitudinal beam, the joist part is a [ shape bar body ] and the built-in beam part is a W shape bar body.

The technical effects of the above technical scheme are as follows: due to the joist part and the built-in beam part, a plurality of triangular connecting frames are formed between the longitudinal beam and the third beam part, so that the supporting strength of the longitudinal beam is improved.

The invention provides that the web is configured as a rectangular sheet and that the inner side of the web is configured to be coupled to the longitudinal beam.

The technical effects of the above technical scheme are as follows: the high-strength connection arrangement of the connection parts of the longitudinal beams is realized.

The invention designs that a left outer column group, a left inner column group, a right outer column group, longitudinal beams, support beam rails and a bottom plate are distributed according to a mode of arranging a skeleton plate, the left outer column group, the left inner column group, the right outer column group, the longitudinal beams, connecting frames, trusses and webs are distributed according to an external reinforcing mode, one left outer column group, one left inner column group, one right outer column group, one connecting frame, three trusses, five longitudinal beams and four webs are arranged to form a group of column beam components, a plurality of support beam rails are arranged to be distributed at intervals along the transverse central line of the longitudinal beams, a plurality of group column beam components are arranged to be distributed at intervals along the longitudinal central line of the bottom plate, and the support beam parts are respectively arranged to be connected with a first column part and a second column part.

The invention designs that the invention comprises a first disc seat part, a vertical plate part, a column base anchor bolt part, a first nut group and a hanging ring part, wherein the lower end head of the column base anchor bolt part and the lower port part of the hanging ring part are arranged in a foundation, the lower end face part of the first disc seat part is arranged to be connected with the foundation in a contact way, the upper end head of the column base anchor bolt part is arranged to be connected with the first nut group in a penetrating way, the lower end face part of the first nut group is arranged to be connected with the upper end face edge part of the first disc seat part in a contact way, the upper end face edge part of the first disc seat part is arranged to be connected with the lower end face part of the vertical plate part, the middle part of the upper end face of the first disc seat part is respectively arranged to be connected with the lower end face part of the first column part and the lower end face part of the second column part, the inner side face of the riser portion is respectively arranged to be connected with the peripheral side face of the first column portion and the peripheral side face of the second column portion, and the first disc seat portion is arranged to be a block body with peripheral through hole bodies, the peripheral through hole bodies of the first disc seat portion are arranged to be connected with the column foot anchor bolt portion, the riser portion is arranged to be a trapezoid sheet body, the column foot anchor bolt portion is arranged to be a bar body with a threaded body at an upper end, the threaded body of the column foot anchor bolt portion is arranged to be connected with the first nut set, the nuts of the first nut set are arranged to be hexagonal nuts, the hanging ring portion is arranged to be an omega-shaped rod body, and the riser portion, the column foot anchor bolt portion and the hanging ring portion are respectively arranged to be distributed along the peripheral line of the first disc seat portion.

The technical effects of the above technical scheme are as follows: the quick mounting of the first column part and the second column part is realized, and the multi-point support fixing of the first column part and the second column part is realized.

The invention designs a second disc seat part, a bar block part, a central screw rod part and a second nut group, wherein the lower end head of the central screw rod part is connected with the second disc seat part in a penetrating way, the lower end face part of the bar block part is connected with the upper end face part of the second disc seat part, the upper end face part of the bar block part is connected with the disc part of the central screw rod part, the upper end head of the central screw rod part is connected with the second nut group in a threaded way, the upper end head of the central screw rod part is connected with the joist part and the longitudinal beam in a penetrating way, the lower end face part of the second nut group is connected with the joist part and the longitudinal beam in a contact way, the second disc seat part is connected with the third beam part, the second disc seat part is provided with a block body with a middle through hole body, the middle through hole body of the second disc seat part is connected with the central screw rod part, the bar block part is provided with a rectangular sheet body, the central screw rod part is provided with a middle-shaped bolt, and the nut of the second nut group is provided with a hexagonal nut.

The technical effects of the above technical scheme are as follows: the second disc seat part and the strip block part realize the reinforcement, support and connection of the central screw rod part, and improve the reinforcement, connection and arrangement of the central screw rod part and the longitudinal beam.

The invention designs that a second support beam rail assembly part is arranged on a first column pier, a fourth support beam rail assembly part is arranged on a second column pier, a first support beam rail assembly part is arranged on the outer side surface of the first column pier, a fifth support beam rail assembly part is arranged on the outer side surface of the second column pier, a third support beam rail assembly part is arranged between the first column pier and the second column pier, the first support beam rail assembly part, the third support beam rail assembly part and the fifth support beam rail assembly part are respectively arranged as fence-shaped bodies formed by support beam rails, and the second support beam rail assembly part and the fourth support beam rail assembly part are respectively arranged as ladder-shaped bodies formed by support beam rails.

The technical effects of the above technical scheme are as follows: the sectional support setting of fence frame and ladder frame has been realized, the support intensity to the bottom plate has been improved.

The invention designs a construction method of an overhead supporting device for a large cantilever bent cap, which comprises the following steps: the overhead support is realized by the column assembly device, the arrangement beam support is realized by the bracket device, the overhead beam frame is used as a support body, and the pavement concrete support is realized by the bottom plate.

The invention designs the method which comprises the following steps: along the installation transverse center line of the large cantilever capping beam, the first column part and the second column part which are positioned in the left outer column group are installed outside the left side surface, the first column part and the second column part which are positioned in the left inner column group are installed inside the left side surface, the first column part and the second column part which are positioned in the right outer column group are installed outside the right side surface, the first column part and the second column part which are positioned in the right inner column group are installed inside the right side surface, the first beam part is installed at the lower part between the first column part and the second column part, the second beam part is installed at the middle part between the first column part and the second column part, the third beam part is installed at the upper part between the first column part and the second column part, the connecting frame is installed between the first column part of the left inner column group and the second column part of the right inner column group, the end head and the joist part of the longitudinal beam are installed on the third beam part, the upper end face parts of the inner beam part are connected with the lower end face parts of the longitudinal beam, the web is installed between the head parts of two adjacent longitudinal beams, the left seat part and the right seat part are respectively arranged at the upper end parts of the rail seat part and the upper seat part, the left seat part and the upper seat part are respectively, the upper end parts of the rail seat part and the upper groove are respectively arranged at the upper end parts of the left seat part and the upper groove of the bottom plate are respectively, the bottom plate is formed by holding the bottom plate, and the bottom plate is laid on the top, and the bottom plate is laid.

The invention designs the method which comprises the following steps: the lower end of the column base anchor bolt part and the lower port part of the hanging ring part are arranged in concrete of a foundation, the middle part of the upper end face of the first disk seat part is welded with the lower end face part of the first column part and the lower end face part of the second column part respectively, the inner side part of the vertical plate part is welded with the peripheral side part of the first column part and the peripheral side part of the second column part respectively, the peripheral through hole bodies of the first disk seat part are arranged on the column base anchor bolt part respectively, the nuts of the first nut group are rotated on the threaded bodies of the column base anchor bolt part, and the nuts of the first nut group are acted on the edge part of the upper end face of the first disk seat part, so that the first column part and the second column part are arranged on the foundation.

The invention designs the method which comprises the following steps: the second disc seat part and the third beam part are welded together, the lower end of the central screw part is placed in the middle part through hole body of the second disc seat part, the lower end of the central screw part is connected with the second disc seat part through a welding mode, the bar part is placed between the disc part of the central screw part and the second disc seat part through a welding mode, the bar part is respectively connected with the disc part of the central screw part and the second disc seat part through a welding mode, the upper end of the central screw part is arranged in the joist part and the longitudinal beam, the nut of the second nut group rotates on the upper end of the central screw part, the nut of the second nut group acts on the joist part and the longitudinal beam, and the truss and the longitudinal beam are arranged on the third beam part.

The technical effects of the two technical schemes are as follows: through truss, longeron, web and a supporting beam rail combination support, realized the large-span setting between left outer stand group, left interior stand group, right interior stand group and the right outer stand group.

In this technical scheme, the bottom plate is a basic component, and is also an essential technical feature of the present invention, and the design of the technical features of the first column portion, the second column portion, the first beam portion, the second beam portion, the third beam portion, the joist portion, the built-in beam portion, the rail portion, the left seat portion, the right seat portion, the first tray portion, the riser portion, the column foot anchor portion, the first nut group, the suspension ring portion, the second tray portion, the bar portion, the central screw portion, the second nut group, the first support beam rail group member, the third support beam rail group member, the fifth support beam rail group member, the second support beam rail group member, the fourth support beam rail group member, the first stud and the second stud is in accordance with the patent law and the implementation rules.

In the technical scheme, the column group device, the bracket device and the bottom plate of the overhead beam frame serving as the supporting body are important technical characteristics, and the column group device, the bracket device and the bottom plate are novel, creative and practical in the technical field of the overhead supporting device and the construction method for the large cantilever bent cap, and the terms in the technical scheme can be explained and understood by the patent literature in the technical field.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Figure 1 is a schematic view of one of the first embodiments of the present invention,

Figure 2 is a schematic structural view of a left outer column group 1, a left inner column group 2, a right inner column group 3 and a right outer column group 4,

Figure 3 is a schematic view of the structure of the support beam rail 9,

Figure 4 is a schematic view of a second embodiment of the present invention,

Figure 5 is a schematic view of a third embodiment of the present invention,

Figure 6 is a schematic diagram of a fourth embodiment of the present invention,

Left outer column group-1, left inner column group-2, right inner column group-3, right outer column group-4, connecting frame-5, truss-6, longitudinal beam-7, web-8, support beam rail-9, bottom plate-91, first column portion-110, second column portion-11, first beam portion-12, second beam portion-13, third beam portion-14, joist portion-61, built-in beam portion-62,

The rail comprises a rail part-99, a left seat part-98, a right seat part-97, a first disc seat part-15, a vertical plate part-16, a column base anchor bolt part-17, a first nut group-18, a hanging ring part-19, a second disc seat part-101, a bar block part-102, a central screw part-103, a second nut group-104, a first support beam rail group part-10, a third support beam rail group part-30, a fifth support beam rail group part-50, a second support beam rail group part-20, a fourth support beam rail group part-40, a first column pier-60 and a second column pier-70.

Detailed Description

Terms such as "having," "including," and "comprising," as used herein, are to be construed as not being accompanied by the presence or addition of one or more other elements or combinations thereof, in accordance with the censoring guidelines.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the various embodiments of the invention described below may be combined with one another as long as they do not interfere with one another, and, unless otherwise specified, the equipment and materials used in the examples below are commercially available, as the process conditions are not explicitly described, with reference to the commercially available product specifications or in accordance with methods conventional in the art.

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

An overhead supporting device for a large cantilever bent cap, fig. 1 is one of first embodiments of the present invention, and specifically illustrates this embodiment with reference to the accompanying drawings, and includes a left outer column group 1, a left inner column group 2, a right inner column group 3, a right outer column group 4, a connecting frame 5, a truss 6, a longitudinal beam 7, a web 8, a supporting beam rail 9 and a bottom plate 91, wherein the longitudinal beam 7 is respectively arranged on the left outer column group 1, the left inner column group 2, the right inner column group 3 and the right outer column group 4, the connecting frame 5 is arranged between the left inner column group 2 and the right inner column group 3, the truss 6 is respectively arranged between the longitudinal beam 7 and the left outer column group 1, the left inner column group 2, the right inner column group 3 and the right outer column group 4, the web 8 is arranged between the longitudinal beams 7, and the supporting beam rail 9 is arranged between the bottom plate 91 and the longitudinal beam 7.

In the present embodiment, the left outer column group 1, the left inner column group 2, the right inner column group 3 and the right outer column group 4 are respectively provided to include the first column portion 110, the second column portion 11, the first beam portion 12, the second beam portion 13 and the third beam portion 14 and the inner lower portion of the first column portion 110 and the inner lower portion of the second column portion 11 are respectively provided to be coupled with the tip of the first beam portion 12, the inner middle portion of the first column portion 110 and the inner middle portion of the second column portion 11 are respectively provided to be coupled with the tip of the second beam portion 13 and the inner upper portion of the first column portion 110 and the inner upper portion of the second column portion 11 are respectively provided to be coupled with the tip of the third beam portion 14, the upper end face portion of the first column portion 110 and the upper end face portion of the second column portion 11 are respectively provided to be coupled with the truss 6 and the side member 7 and between the first column portion 110 located on the left inner column group 2 and the first column portion 110 located on the right inner column portion 3, the first column portion 11 and the second column portion 11 are respectively provided to be coupled with the first column portion 12, the second column portion 13 and the second column portion 11 are respectively provided to be the first column portion 12 and the second column portion 13 and the second column portion 11 are respectively arranged to be connected to the first column portion 13 and the second column portion 11.

Through outer stand group 1 in left side, stand group 2 in left side, stand group 3 in right side and outer stand group 4 in right, formed the support tie point to link 5, truss 6 and longeron 7, by first post portion 110 and second post portion 11, realized being connected with link 5, realized being connected with truss 6, realized being connected with longeron 7, by first crossbeam portion 12, second crossbeam portion 13 and third crossbeam portion 14, realized carrying out the reinforcement between first post portion 110 and the second post portion 11 and connect the processing, its technical aim is: for acting as a support carrier for the connection frame 5, the truss frame 6 and the stringers 7.

In this embodiment, the connection frame 5 is provided as an X-shaped frame body and one of the ends of the connection frame 5 is provided to be coupled with the left inner column group 2 and the other end of the connection frame 5 is provided to be coupled with the right inner column group 3.

Through link 5, formed the support tie point to left interior stand group 2 and right interior stand group 3, by link 5, realized being connected with left interior stand group 2, realized being connected with right interior stand group 3, its technical aim is: and the component is used for strengthening and connecting the left inner column group 2 and the right inner column group 3.

In the present embodiment, the truss 6 is provided to include the joist portion 61 and the built-in beam portion 62 and the lower end corner portion of the built-in beam portion 62 is provided to be coupled with the upper end face portion of the joist portion 61, the ends of the joist portion 61 are provided to be coupled with the left outer column group 1, the left inner column group 2, the right inner column group 3 and the right outer column group 4, respectively, and the upper end corner portion of the built-in beam portion 62 is provided to be coupled with the lower end face portion of the side member 7, the joist portion 61 is provided as a [ -shaped rod-like body and the built-in beam portion 62 is provided as a W-shaped rod-like body.

Through truss 6, formed the support tie point to left outer stand group 1, left interior stand group 2, right interior stand group 3, right outer stand group 4 and longeron 7, by joist portion 61, realized being connected with left outer stand group 1, realized being connected with left interior stand group 2, realized being connected with right interior stand group 3, realized being connected with right outer stand group 4, by built-in beam portion 62, realized being connected with longeron 7, its technical purpose lies in: means for reinforcing the stringers 7.

In the present embodiment, the side members 7 are provided as rectangular columnar bodies and the lower end face portions of the side members 7 are provided to be coupled with the left outer column group 1, the left inner column group 2, the right inner column group 3, the right outer column group 4, and the truss 6, respectively, the ends of the side members 7 are provided to be coupled with the web 8 and the upper end face portions of the side members 7 are provided to be coupled with the support beam rails 9.

Through longeron 7, formed the support tie point to left outer stand group 1, left interior stand group 2, right interior stand group 3, right outer stand group 4, truss 6, web 8 and supporting beam rail 9, by longeron 7, realized being connected with left outer stand group 1, realized being connected with left interior stand group 2, realized being connected with right interior stand group 3, realized being connected with right outer stand group 4, realized being connected with truss 6, realized being connected with web 8, realized being connected with supporting beam rail 9, its technical aim is: for acting as a support carrier for the support beam rail 9.

In the present embodiment, the web 8 is provided as a rectangular sheet and the inner side portion of the web 8 is provided to be coupled with the side member 7.

Through web 8, formed the support tie point to longeron 7, realized by web 8 with longeron 7's connection, its technical aim is: for connection between two adjacent stringers 7.

In the present embodiment, the support beam rail 9 is provided to include a rail portion 99, a left seat portion 98 and a right seat portion 97, and the left seat portion 98 and the right seat portion 97 are provided at the ends of the rail portion 99, respectively, the receiving groove bodies are provided at the inner side portion of the left seat portion 98 and the inner side portion of the right seat portion 97, respectively, and the receiving groove bodies of the left seat portion 98 and the receiving groove bodies of the right seat portion 97 are provided to be coupled with the lower end edge bodies of the rail portion 99, the upper end edge bodies of the rail portion 99 are provided to be coupled with the bottom plate 91, and the lower end face portions of the left seat portion 98 and the right seat portion 97 are provided to be coupled with the side members 7, respectively, the rail portion 99 is provided to be an i-beam, and the left seat portion 98 and the right seat portion 97 are provided to be rectangular block bodies, respectively.

Through supporting beam rail 9, formed the support tie point to longeron 7 and bottom plate 91, realized being connected with longeron 7 by left seat 98 and right seat 97, realized being connected with bottom plate 91 by rail portion 99, its technical purpose lies in: for acting as a support carrier for the base plate 91.

In the present embodiment, the bottom plate 91 is provided as a rectangular sheet body and the lower end face portion of the bottom plate 91 is provided to be coupled with the support beam rail 9, and a cast concrete road surface is provided at the upper end face portion of the bottom plate 91.

Through the bottom plate 91, the support tie point to the support beam rail 9 is formed, by the bottom plate 91, the connection with the support beam rail 9 is realized, its technical purpose is: the support carrier is used for supporting the poured concrete pavement.

In the present embodiment, the left outer column group 1, the left inner column group 2, the right inner column group 3, the right outer column group 4, and the side members 7 are arranged to be distributed in a manner of providing the deck plates and the left outer column group 1, the left inner column group 2, the right inner column group 3, the right outer column group 4, and the side members 7 are arranged to be distributed in a manner of externally reinforcing the connection frame 5, the truss 6, and the web 8, one left outer column group 1, one left inner column group 2, one right inner column group 3, one right outer column group 4, one connection frame 5, three truss 6, five side members 7, and four web 8 are arranged to constitute a group of column beam members, the plurality of support beam rails 9 are arranged to be arranged in a manner of arranging the side members at intervals along the lateral center line of the side members 7 and the plurality of group column beam members are arranged to be arranged in a manner of arranging the longitudinal center line of the deck plates 91, and the joist portions 61 are arranged to be coupled to the first column portion 110 and the second column portion 11, respectively.

The invention will be further described with reference to the following examples, which are intended to illustrate the invention and not to limit it further.

The invention relates to a construction method of an overhead supporting device for a large cantilever bent cap, which comprises the following steps: the first column part 110 and the second column part 11 of the left outer column group 1 are arranged outside the left side surface, the first column part 110 and the second column part 11 of the left inner column group 2 are arranged inside the left side surface, the first column part 110 and the second column part 11 of the right outer column group 4 are arranged outside the right side surface, the first column part 110 and the second column part 11 of the right inner column group 3 are arranged inside the right side surface, the first beam part 12 is arranged at the lower part between the first column part 110 and the second column part 11, the second beam part 13 is arranged at the middle part between the first column part 110 and the second column part 11, the third beam part 14 is arranged at the upper part between the first column part 110 and the second column part 11, the connecting frame 5 is installed between the first column portion 110 of the left inner column group 2 and the second column portion 11 of the right inner column group 3, the tip of the side member 7 and the joist portion 61 are installed on the third cross member portion 14, the upper end face portion of the built-in girder portion 62 is connected to the lower end face portion of the side member 7, the web 8 is installed between the tips of the adjacent two side members 7, the left seat portion 98 and the right seat portion 97 are respectively placed on the upper end face portions of the side members 7, the rail portion 99 is installed between the accommodation groove bodies of the left seat portion 98 and the accommodation groove bodies of the right seat portion 97, the left seat portion 98 and the right seat portion 97 are connected to the side member 7, the rail portion 99 is sandwiched by the left seat portion 98 and the right seat portion 97, the bottom plate 91 is laid on the rail portion 99, the road surface formwork is installed on the upper end face portion of the bottom plate 91, and concrete casting is performed on the road surface formwork, thereby the road surface is produced on the bottom plate 91.

Fig. 4 is a second embodiment of the present invention, specifically illustrating the present embodiment with reference to the drawings, comprising a first disc seat 15, a riser portion 16, a column foot anchor 17, a first nut group 18 and a suspension ring portion 19, and a lower end of the column foot anchor 17 and a lower port of the suspension ring portion 19 are disposed in a foundation, a lower end face portion of the first disc seat 15 is disposed in contact with the foundation and an upper end of the column foot anchor 17 is disposed in through-line with the first disc seat 15, an upper end of the column foot anchor 17 is disposed in threaded connection with the first nut group 18 and a lower end face portion of the first nut group 18 is disposed in contact with an upper end face edge portion of the first disc seat 15, the upper end face edge portion of the first disc seat portion 15 is provided to be coupled with the lower end face portion of the riser portion 16 and the upper end face intermediate portion of the first disc seat portion 15 is provided to be coupled with the lower end face portion of the first column portion 110 and the lower end face portion of the second column portion 11, respectively, the inner side face portion of the riser portion 16 is provided to be coupled with the peripheral side face portion of the first column portion 110 and the peripheral side face portion of the second column portion 11, respectively, and the first disc seat portion 15 is provided as a block body having a peripheral through hole body, the peripheral through hole body of the first disc seat portion 15 is provided to be coupled with the column anchor portion 17 and the riser portion 16 is provided as a trapezoidal sheet body, the column anchor portion 17 is provided as a rod body having a screw body at an upper end and the screw body of the column anchor portion 17 is provided to be coupled with the first nut group 18, the nuts of the first nut group 18 are provided as hexagonal nuts and the ring portion 19 is provided as an Ω -shaped rod body, the riser portion 16, the column anchor 17 and the suspension ring 19 are arranged and distributed along the peripheral line of the first disk seat 15.

The technical purpose is that: for mounting the first column portion 110 and the second column portion 11 on the foundation.

The second embodiment of the invention is a construction method of an overhead supporting device for a large cantilever bent cap, comprising the following steps: the lower end of the column base anchor 17 and the lower end of the ring 19 are mounted in the concrete of the foundation, the middle part of the upper end face of the first nut group 15 is welded with the lower end face of the first column 110 and the lower end face of the second column 11, the inner side part of the vertical plate 16 is welded with the peripheral side part of the first column 110 and the peripheral side part of the second column 11, the peripheral through hole of the first nut group 18 is rotated on the screw of the column base anchor 17, the nuts of the first nut group 18 are applied to the upper end face edge part of the first column 15, and the first column 110 and the second column 11 are mounted on the foundation.

Fig. 5 is a third embodiment of the present invention, specifically explaining the present embodiment with reference to the drawings, comprising a second disc seat portion 101, a bar portion 102, a central screw portion 103 and a second nut group 104, and the lower end of the central screw portion 103 is arranged to be coupled with the second disc seat portion 101 in a penetrating manner, the lower end face portion of the bar portion 102 is arranged to be coupled with the upper end face portion of the second disc seat portion 101 and the upper end face portion of the bar portion 102 is arranged to be coupled with the disc portion of the central screw portion 103, the upper end of the central screw portion 103 is arranged to be coupled with the second nut group 104 in a penetrating manner, and the upper end of the central screw portion 103 is arranged to be coupled with the joist portion 61 and the longitudinal beam 7, respectively, the lower end face portion of the second nut group 104 is arranged to be coupled with the joist portion 61 and the longitudinal beam 7 in a penetrating manner, the second disc seat portion 101 is arranged to be coupled with the third beam portion 14, the second disc seat portion 101 is arranged to be a block body having a middle through hole body, the middle through hole body of the second disc seat portion 101 is arranged to be coupled with the central screw portion 103 in a rectangular screw portion 102, and the middle screw portion is arranged to be a nut portion in a sheet shape.

The technical purpose is that: for being a component mounted on the third beam portion 14 for the truss 6 and the stringers 7.

The third embodiment of the invention is a construction method of an overhead supporting device for a large cantilever bent cap, comprising the following steps: the second disc seat portion 101 and the third beam portion 14 are welded together, the lower end of the central screw portion 103 is placed in the middle portion through hole body of the second disc seat portion 101, the lower end of the central screw portion 103 is connected with the second disc seat portion 101 by welding, the bar block portion 102 is placed between the disc portion of the central screw portion 103 and the second disc seat portion 101, the bar block portion 102 is connected with the disc portion of the central screw portion 103 and the second disc seat portion 101 by welding, the upper end of the central screw portion 103 is mounted in the joist portion 61 and the longitudinal beam 7, the nuts of the second nut group 104 are rotated on the upper end of the central screw portion 103, the nuts of the second nut group 104 are made to act on the joist portion 61 and the longitudinal beam 7, and the truss 6 and the longitudinal beam 7 are mounted on the third beam portion 14.

An overhead supporting apparatus for a large cantilever bent cap, fig. 6 is a fourth embodiment of the present invention, which will be specifically described with reference to the accompanying drawings, in which a second support beam rail set member 20 is provided on a first column 60 and a fourth support beam rail set member 40 is provided on a second column 70, a first support beam rail set member 10 is provided on an outer side of the first column 60 and a fifth support beam rail set member 50 is provided on an outer side of the second column 70, a third support beam rail set member 30 is provided between the first column 60 and the second column 70, and the first support beam rail set member 10, the third support beam rail set member 30 and the fifth support beam rail set member 50 are each provided as a fence-like body composed of support beam rails 9, and the second support beam rail set member 20 and the fourth support beam rail set member 40 are each provided as a ladder-like body composed of support beam rails 9.

The technical purpose is that: the reinforcement supporting process of the bottom plate 91 is realized at the portions of the first column pier 60 and the second column pier 70.

In a second embodiment of the present invention, the column group means, the bracket means and the bottom plate 91 are coupled to each other in such a manner that the overhead beam is used as a support.

In the present embodiment, the bracket device is coupled with the column group device and the bottom plate 91 in such a manner that the overhead beam frame is realized as a support body using the array beam support.

In this embodiment, the column group means is provided to include a left outer column group 1, a left inner column group 2, a right inner column group 3, and a right outer column group 4.

In this embodiment the bracket means are arranged to comprise longitudinal beams 7 and support beam rails 9.

In the present embodiment, a first accessory device is further included and provided on the column group device, the first accessory device being provided as the connection frame 5.

In this embodiment, a second attachment means is also included and is provided between the column set means and the bracket means, the second attachment means being provided as a truss 6.

In this embodiment, third attachment means are also included and are provided on the carrier means, the third attachment means being provided as a web 8.

The second embodiment of the present invention is based on the first embodiment,

A second embodiment of the invention comprises the steps of: the overhead support of the bracket device is realized by the column assembly, the arrangement beam support of the bottom plate 91 is realized by the bracket device, the overhead beam frame is used as a support body, and the pavement concrete support is realized by the bottom plate 91.

The second embodiment of the present invention is based on the first embodiment.

The invention has the following characteristics:

1. due to the design of the upright post set device, the bracket device and the bottom plate 91, the bracket device is supported in an overhead manner, the bottom plate 91 is supported in an arrangement manner through the bracket device, the overhead beam frame is used as a supporting body, the pavement concrete is supported through the bottom plate 91, and the scaffold is not used as the overhead support, so that the construction efficiency of the large cantilever bent cap is improved.

2. The left outer column group 1, the left inner column group 2, the right inner column group 3 and the right outer column group 4 are designed, so that the support setting of the three-connection span is realized.

3. Due to the design of the longitudinal beam 7 and the support beam rail 9, the net rack is supported.

4. Due to the design of the connecting frame 5, the reinforcement connection between the left inner column group 2 and the right inner column group 3 is realized.

5. Due to the design of the truss 6, the reinforcement connection between the longitudinal beam 7 and the column group device is realized.

6. Due to the design of the webs 8, a reinforcement connection arrangement between the stringers 7 is achieved.

7. Because the structure shape is designed to limit the numerical range, the numerical range is the technical characteristic in the technical scheme of the invention, and the technical characteristic of the numerical range is not calculated through a formula or obtained through limited tests, and the tests show that the technical characteristic of the numerical range has good technical effect.

8. Because the technical characteristics of the invention are designed, the experiment shows that the performance indexes of the invention are at least 1.7 times of the existing performance indexes under the independent and mutually aggregated functions of the technical characteristics, and the invention has good market value through evaluation.

Still other technical features of the column group means, the bracket means and the base plate 91 coupled with the overhead beam as a supporting body are one of the embodiments of the present invention, and the technical features of the above-described embodiments may be arbitrarily combined, and embodiments of all possible combinations of the technical features of the above-described embodiments will not be described in order to satisfy the requirements of patent laws, patent implementation details and examination guidelines.

The above embodiment is only one implementation form of the overhead supporting device and the construction method for a large cantilever bent cap provided by the present invention, and according to other variants of the solution provided by the present invention, components or steps in the overhead supporting device and the construction method are added or reduced, or the present invention is applied to other technical fields close to the present invention, which are all within the protection scope of the present invention.

Claims (18)

1. An overhead supporting device for a large cantilever bent cap, which is characterized in that: comprises a column group device arranged on the foundation of the large cantilever bent cap, a bracket device arranged on the column group device, and a bottom plate (91) arranged on the bracket device,

The upright post group device is arranged to comprise a left outer upright post group (1), a left inner upright post group (2), a right inner upright post group (3) and a right outer upright post group (4),

The bracket device is arranged to comprise a longitudinal beam (7) and a support beam rail (9),

Also comprises a first accessory device which is arranged on the column group device and is arranged as a connecting frame (5),

A second attachment means is also included and is arranged between the column group means and the bracket means, the second attachment means being arranged as a truss (6),

A third attachment means is also included and is provided on the carrier means, the third attachment means being provided as a web (8),

Be provided with longeron (7) on outer stand group (1) in left, left side in stand group (2), right side in stand group (3) and outer stand group (4) in right respectively, be provided with link (5) between in left side in stand group (2) and right side in stand group (3) and be provided with truss (6) between longeron (7) and outer stand group (1) in left side, stand group (2) in left side in stand group (3) and outer stand group (4) in right respectively, be provided with web (8) between longeron (7) and be provided with supporting beam rail (9) between bottom plate (91) and longeron (7).

2. The overhead support device for a large cantilever capping beam according to claim 1, wherein: the column group means, the bracket means and the base plate (91) are coupled to each other in such a manner that the overhead beam frame serves as a support.

3. The overhead support device for a large cantilever capping beam according to claim 2, wherein: the bracket means is coupled to the column group means and the base plate (91) in such a way that the overhead beam is realized as a support using the array beam support.

4. The overhead support device for a large cantilever capping beam according to claim 1, wherein: the bottom plate (91) is a rectangular sheet body, the lower end face part of the bottom plate (91) is connected with the support beam rail (9), and a pouring concrete pavement is arranged on the upper end face part of the bottom plate (91).

5. The overhead support device for a large cantilever capping beam according to claim 1, wherein: the left outer column group (1), the left inner column group (2), the right inner column group (3) and the right outer column group (4) are respectively arranged to comprise a first column part (110), a second column part (11), a first beam part (12), a second beam part (13) and a third beam part (14), the lower part of the inner side surface of the first column part (110) and the lower part of the inner side surface of the second column part (11) are respectively arranged to be connected with the end head of the first beam part (12), the middle part of the inner side surface of the first column part (110) and the middle part of the inner side surface of the second column part (11) are respectively arranged to be connected with the end head of the second beam part (13) and the upper part of the inner side surface of the first column part (110) and the upper part of the inner side surface of the second column part (11) are respectively arranged to be connected with the end head of the third beam part (14), the upper end face part of the first column part (110) and the upper end face part of the second column part (11) are respectively connected with the truss (6) and the longitudinal beam (7), and a connecting frame (5) is respectively arranged between the first column part (110) positioned on the left inner column group (2) and the first column part (110) positioned on the right inner column group (3), between the second column part (11) positioned on the left inner column group (2) and the second column part (11) positioned on the right inner column group (3), and the first column part (110), the second column part (11), the first beam portion (12), the second beam portion (13) and the third beam portion (14) are respectively provided in a circular rod shape and the first column portion (110) and the second column portion (11) are provided in a ladder-shaped distribution with the first beam portion (12), the second beam portion (13) and the third beam portion (14).

6. The overhead support device for a large cantilever capping beam according to claim 1, wherein: the longitudinal beam (7) is arranged as a rectangular column body, the end face of the lower end of the longitudinal beam (7) is respectively arranged to be connected with the left outer column group (1), the left inner column group (2), the right inner column group (3), the right outer column group (4) and the truss (6), the end head of the longitudinal beam (7) is arranged to be connected with the web (8), and the end face of the upper end of the longitudinal beam (7) is arranged to be connected with the support beam rail (9).

7. The overhead support device for a large cantilever capping beam according to claim 1, wherein: the support beam rail (9) is arranged to comprise a rail part (99), a left seat part (98) and a right seat part (97), the left seat part (98) and the right seat part (97) are respectively arranged at the end head of the rail part (99), the containing groove bodies are respectively arranged on the inner side surface part of the left seat part (98) and the inner side surface part of the right seat part (97), the containing groove bodies of the left seat part (98) and the containing groove bodies of the right seat part (97) are respectively arranged to be connected with the lower end edge bodies of the rail part (99), the upper end edge bodies of the rail part (99) are respectively arranged to be connected with the bottom plate (91), the lower end surface parts of the left seat part (98) and the lower end surface parts of the right seat part (97) are respectively arranged to be connected with the longitudinal beam (7), the rail part (99) is arranged to be an I-beam, and the left seat part (98) and the right seat part (97) are respectively arranged to be rectangular block bodies.

8. The overhead support device for a large cantilever capping beam according to claim 1, wherein: the connecting frame (5) is arranged into an X-shaped frame body, one end of the connecting frame (5) is connected with the left inner column group (2), and the other end of the connecting frame (5) is connected with the right inner column group (3).

9. The overhead support device for a large cantilever capping beam according to claim 1, wherein: truss (6) is set up to include joist portion (61) and built-in beam portion (62) and the lower extreme corner portion of built-in beam portion (62) sets up to be connected with the upper end terminal surface portion of joist portion (61), and the end of joist portion (61) sets up respectively to be connected with left outer stand group (1), left interior stand group (2), right interior stand group (3) and right outer stand group (4) and the upper end corner portion of built-in beam portion (62) sets up to be connected with the lower extreme terminal surface portion of longeron (7), and joist portion (61) set up to [ font shaft body and built-in beam portion (62) set up to the W font shaft body.

10. The overhead support device for a large cantilever capping beam according to claim 1, wherein: the web (8) is provided as a rectangular sheet and the inner side of the web (8) is provided to be coupled to the stringers (7).

11. The overhead support device for a large cantilever capping beam according to any one of claims 1 to 10, characterized in that: left outer column group (1), left inner column group (2), right inner column group (3), right outer column group (4) and longeron (7) are set up to distribute and left outer column group (1), left inner column group (2), right inner column group (3), right outer column group (4) and longeron (7) are set up to distribute according to external reinforced mode with link (5), truss (6) and web (8), a left outer column group (1), a left inner column group (2), a right inner column group (3), a right outer column group (4), a link (5), three trusses (6), five longerons (7) and four webs (8) are set up to constitute a set of post beam parts, a plurality of support beam rails (9) are set up to be arranged and distribute along the transverse central line interval of longeron (7) and a plurality of group post beam parts are set up to be arranged and distribute along the longitudinal central line interval of bottom plate (91), and joist portion (61) are set up to be respectively with first post (110) and second post portion (11).

12. The overhead support device for a large cantilever capping beam according to claim 11, wherein: comprises a first disc seat part (15), a vertical plate part (16), a column base anchor bolt part (17), a first nut group (18) and a lifting ring part (19), wherein the lower end head of the column base anchor bolt part (17) and the lower port part of the lifting ring part (19) are arranged in a foundation, the lower end face part of the first disc seat part (15) is arranged to be connected with the foundation in a contact mode, the upper end head of the column base anchor bolt part (17) is arranged to be connected with the first disc seat part (15) in a penetrating mode, the upper end head of the column base anchor bolt part (17) is arranged to be connected with the first nut group (18) in a threaded mode, the lower end face part of the first nut group (18) is arranged to be connected with the upper end face edge part of the first disc seat part (15) in a contact mode, the upper end face edge portion of the first disc seat portion (15) is arranged to be coupled with the lower end face portion of the riser portion (16) and the upper end face intermediate portion of the first disc seat portion (15) is arranged to be coupled with the lower end face portion of the first pillar portion (110) and the lower end face portion of the second pillar portion (11), the inner side portion of the riser portion (16) is arranged to be coupled with the peripheral side portion of the first pillar portion (110) and the peripheral side portion of the second pillar portion (11) and the first disc seat portion (15) is arranged to be a block body having a peripheral through hole body, the peripheral through hole body of the first disc seat portion (15) is arranged to be coupled with the pillar anchor portion (17) and the riser portion (16) is arranged to be a trapezoid sheet body, the column base anchor bolt portion (17) is arranged to be a rod-shaped body with a threaded body at the upper end, the threaded body of the column base anchor bolt portion (17) is arranged to be connected with the first nut group (18), nuts of the first nut group (18) are arranged to be hexagonal nuts, the hanging ring portion (19) is arranged to be an omega-shaped rod-shaped body, and the vertical plate portion (16), the column base anchor bolt portion (17) and the hanging ring portion (19) are arranged to be distributed along the peripheral line interval of the first disc portion (15) respectively.

13. The overhead support device for a large cantilever capping beam according to claim 11, wherein: the screw bolt comprises a second disc seat (101), a bar block part (102), a central screw rod part (103) and a second nut group (104), wherein the lower end of the central screw rod part (103) is connected with the second disc seat (101) in a penetrating way, the lower end face part of the bar block part (102) is connected with the upper end face part of the second disc seat (101) in a penetrating way, the upper end face part of the bar block part (102) is connected with the disc part of the central screw rod part (103) in a penetrating way, the upper end of the central screw rod part (103) is connected with the second nut group (104) in a threaded way, the upper end of the central screw rod part (103) is connected with the joist part (61) and the longitudinal beam (7) in a penetrating way, the lower end face part of the second nut group (104) is connected with the joist part (61) and the longitudinal beam (7) in a contacting way, the second disc seat (101) is connected with the third beam part (14), the second disc seat (101) is provided with a block body with a middle through hole body, the middle part (103) is provided with the square screw rod part (103) in a penetrating way, and the middle screw rod part (103) is provided with the central screw rod part (104) is connected with the screw rod part in a penetrating way.

14. The overhead support device for a large cantilever capping beam according to claim 11, wherein: a second support beam rail set part (20) is arranged on a first column pier (60) and a fourth support beam rail set part (40) is arranged on a second column pier (70), a first support beam rail set part (10) is arranged on the outer side face of the first column pier (60) and a fifth support beam rail set part (50) is arranged on the outer side face of the second column pier (70), a third support beam rail set part (30) is arranged between the first column pier (60) and the second column pier (70), the first support beam rail set part (10), the third support beam rail set part (30) and the fifth support beam rail set part (50) are respectively arranged as fence-shaped bodies formed by support beam rails (9), and the second support beam rail set part (20) and the fourth support beam rail set part (40) are respectively arranged as ladder-shaped bodies formed by support beam rails (9).

15. A construction method using the overhead supporting device for a large cantilever capping beam according to claim 1, characterized in that: the method comprises the following steps: the overhead support of the bracket device is realized by the upright post set, the arrangement beam support of the bottom plate (91) is realized by the bracket device, the overhead beam frame is used as a support body, and the pavement concrete support is realized by the bottom plate (91).

16. The construction method for the overhead supporting device for the large cantilever bent cap according to claim 15, wherein the construction method comprises the following steps: the method comprises the following steps: along the installation transverse center line of the large cantilever bent cap, the first column part (110) and the second column part (11) which are positioned on the left outer column group (1) are installed outside the left side surface, the first column part (110) and the second column part (11) which are positioned on the left inner column group (2) are installed inside the left side surface, the first column part (110) and the second column part (11) which are positioned on the right outer column group (4) are installed outside the right side surface, the first column part (110) and the second column part (11) which are positioned on the right inner column group (3) are installed inside the right side surface, the first cross beam part (12) is installed at the lower part between the first column part (110) and the second column part (11), the second cross beam part (13) is installed at the middle part between the first column part (110) and the second column part (11), the third cross beam part (14) is installed at the upper part between the first column part (110) and the second column part (11), the connecting frame (5) is installed at the upper part between the first column part (110) and the second column part (7) which are positioned on the left inner column group (2), the end face part (7) is installed between the web part (7) and the upper end part (7) which are installed at the upper end part (7), the left seat (98) and the right seat (97) are respectively placed on the upper end face parts of the longitudinal beams (7), the rail parts (99) are installed between the containing groove bodies of the left seat (98) and the containing groove bodies of the right seat (97), the left seat (98) and the right seat (97) are connected with the longitudinal beams (7), the rail parts (99) are clamped by the left seat (98) and the right seat (97), the bottom plate (91) is paved on the rail parts (99), the pavement templates are installed on the upper end face parts of the bottom plate (91), and concrete pouring is carried out on the pavement templates, so that the pavement is manufactured on the bottom plate (91).

17. The construction method for the overhead supporting device for the large cantilever bent cap according to claim 16, wherein the construction method comprises the following steps: the method comprises the following steps: the method comprises the following steps: the lower end of the column base anchor bolt part (17) and the lower port part of the hanging ring part (19) are installed in concrete of a foundation, the middle part of the upper end face of the first column base part (15) is welded with the lower end face part of the first column part (110) and the lower end face part of the second column part (11) respectively, the inner side part of the vertical plate part (16) is welded with the peripheral side part of the first column part (110) and the peripheral side part of the second column part (11) respectively, the peripheral through hole bodies of the first column base part (15) are installed on the column base anchor bolt part (17) respectively, the nuts of the first nut group (18) are rotated on the threaded bodies of the column base anchor bolt part (17), and the nuts of the first nut group (18) are enabled to act on the upper end face edge part of the first column base part (15), so that the first column part (110) and the second column part (11) are installed on the foundation.

18. The construction method for the overhead supporting device for the large cantilever bent cap according to claim 16, wherein the construction method comprises the following steps: the method comprises the following steps: the method comprises the following steps: the second disc seat part (101) and the third disc seat part (14) are welded together, the lower end of the central screw part (103) is placed in a middle part through hole body of the second disc seat part (101), the lower end of the central screw part (103) is connected with the second disc seat part (101) through a welding mode, the strip block part (102) is placed between the disc part of the central screw part (103) and the second disc seat part (101), the strip block part (102) is connected with the disc part of the central screw part (103) and the second disc seat part (101) through a welding mode, the upper end of the central screw part (103) is installed in the joist part (61) and the longitudinal beam (7), the nuts of the second nut group (104) are rotated on the upper end of the central screw part (103), the nuts of the second nut group (104) are acted on the joist part (61) and the longitudinal beam (7), and the truss (6) and the longitudinal beam (7) are installed on the third beam part (14).