CN218712241U - Integrated construction platform for erecting prefabricated box girder of framed rigid frame bridge and casting pier girder in situ - Google Patents
Integrated construction platform for erecting prefabricated box girder of framed rigid frame bridge and casting pier girder in situ Download PDFInfo
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- CN218712241U CN218712241U CN202222892062.0U CN202222892062U CN218712241U CN 218712241 U CN218712241 U CN 218712241U CN 202222892062 U CN202222892062 U CN 202222892062U CN 218712241 U CN218712241 U CN 218712241U
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Abstract
The integrated construction platform comprises a plurality of pier stud templates arranged on the surface of a pier stud along the axis direction of the single-row pier stud, a tie beam connected with the pier stud templates and a temporary support arranged on the tie beam, wherein the bottom of the pier stud template is supported at the top of a pile foundation or a bearing platform, the tie beam is connected with the pier stud templates through bolts, and the temporary support is used for erecting a prefabricated box girder, and the height of a girder body is adjusted. The utility model directly transmits the load weight of the precast box girder, the cast-in-place crossbeam and the like to the lower pile foundation or the bearing platform through the pier stud template, thereby greatly improving the vertical bearing capacity of the structure; the integrated platform is an assembled platform, has simple and clear structure, is convenient to assemble and disassemble and can be repeatedly used; platform top surface width and length are big, and pier stud is pour, prefabricated box girder erects, crossbeam reinforcement and pours the equal process of all can easily accomplish on the platform, and the platform mesa of ground plate formula has increased construction operation personnel's travelling comfort and security.
Description
Technical Field
The utility model relates to a framed bent formula rigid frame bridge construction field especially relates to a framed bent formula rigid frame bridge prefabricated box roof beam erects and the cast-in-place integration construction platform of mound roof beam.
Background
The framed rigid frame bridge has the advantages of high rigidity, good integrity, no need of arranging a support and the like, and is widely applied to projects such as medium-small span municipal and highway bridges, particularly coastal bridges, hydrophilic platforms, wharfs and the like.
The general construction steps of the prefabricated framed rigid frame bridge are as follows: 1, erecting a pier stud template and pouring a pier stud structure; 2, dismantling the pier stud template, and installing a hoop platform or erecting a bracket; 3, transporting the prefabricated superstructure to a site for erection; 4, erecting a pier beam consolidation beam template on the hoop platform or the bracket; 5, pouring a pier beam to solidify a cross beam; 6 removing the hoop platform or the bracket.
According to the above method, there are the following problems:
1 pier stud template, staple bolt platform or structures such as support are independent structure, need through installing, demolising many times, and the work progress is comparatively loaded down with trivial details.
2 prefabricated box girder dead weight is great, and traditional staple bolt platform only relies on the frictional force between pier stud and staple bolt to undertake the load of upper portion transmission, tears the back when the staple bolt through ann many times, because factors such as steel construction deformation, damage are difficult to undertake great load, and the security of structure is difficult to guarantee.
3 the mode expense of setting up the support is higher, and the construction space demand is big, influences the traffic, especially when the bridge is located the waters, the setting up and demolish degree of difficulty of support is big, with high costs.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned problem a framed bent rigid frame bridge precast box roof beam erects and the cast-in-place integration construction platform of mound roof beam, and the installation and the dismantlement of not only being convenient for construction improve the efficiency of construction, practice thrift the cost, moreover safe and reliable more on structural design.
The utility model discloses the technical scheme who takes:
prefabricated box girder of framed bent rigid frame bridge erects and cast-in-place integration construction platform of mound roof beam, including a plurality of axis directions along the single pier stud set up in a plurality of pier stud templates on pier stud surface, with the tie beam of pier stud template connection and the temporary support of setting on the tie beam, pier stud template bottom sprag is in pile foundation or cushion cap top, the tie beam is welding box type structure, through bolted connection between tie beam and the pier stud template, the temporary support is used for prefabricated box girder to erect and falls roof beam and adjustment beam body elevation.
Pier stud template be by the sleeve that two arc steel sheet docks and form, bolted connection is worn to establish on the connecting plate at arc steel sheet edge to two arc steel sheets, the arc steel sheet lateral wall is provided with hoop stiffening rib and vertical stiffening rib, the connecting plate corresponds the high position at the tie beam and widens with the bearing platform board.
Pier stud template top both sides and single-row pier stud axis direction respectively set up two sets of otic placodes, reserve the otic placode bolt hole of being connected with the tie beam on the ear limit.
The tie beam comprises a middle tie beam and an edge tie beam, the tie beam is composed of a top plate, web plates, a bottom plate, transverse partition plates and stiffening ribs, the two web plates are arranged between the top plate and the bottom plate, the stiffening ribs are arranged on the inner sides of the web plates and the top plate, and the transverse partition plates are uniformly distributed on the inner sides and the outer sides of the two web plates.
The web plate of the tie beam and the lug plates welded on two sides of the top of the pier stud template are connected into a whole through bolts, and web plate bolt holes are reserved in the corresponding positions of the web plate.
The utility model has the advantages that:
the utility model discloses a pier stud template directly transmits load weight such as prefabricated box girder and cast-in-place crossbeam to lower part pile foundation or cushion cap on, has improved the vertical bearing capacity of structure greatly.
2 the integrated platform related to the utility model is an assembled platform, which has simple and clear structure, convenient assembly and disassembly and can be repeatedly used; platform top surface width and length are big, and pier stud is pour, prefabricated box girder erects, crossbeam reinforcement and pour the process such as all can easily accomplish on the platform, and the platform mesa of ground plate formula has increased construction operation personnel's travelling comfort and security.
3 the utility model discloses pour the pier stud during the construction, prefabricated case roof beam erects, horizontal cast-in-place work progress fuses together, has saved the repeated process of ann tearing open of pier stud template and staple bolt platform, simplifies the work progress, improves the efficiency of construction.
Drawings
Fig. 1 is a front view of the structure of the present invention.
Fig. 2 is a left side view of the structure of the present invention.
Fig. 3 is a top view of the structure of the present invention.
Fig. 4 is the schematic diagram of the pier stud template structure of the present invention.
Fig. 5 is a schematic view of a series of structures of the present invention.
Wherein: 1-pier stud template; 11-arc steel plate; 12-a connecting plate; 13-circumferential stiffening ribs; 14-vertical stiffeners; 15-bolt; 16-ear plate; 17-lug plate bolt holes; 2-tie beam; 21-a top plate; 22-a web; 23-a base plate; 24-a diaphragm plate; 25-a stiffener; 26-web bolt holes; 3-temporary support; 4-bottom die; 5, casting a beam in situ; 6-prefabricating the box girder.
Detailed Description
The integrated construction platform for erecting the prefabricated box girder of the bent frame type rigid frame bridge and casting the pier girder in situ as shown in figure 1 is characterized in that: including a plurality of axis directions along the single pier stud set up in pier stud template 1 on pier stud surface, with the tie beam 2 and the temporary support 3 of setting on tie beam 2 that pier stud template 1 is connected, 1 bottom sprag of pier stud template in pile foundation or cushion cap top, tie beam 2 is welding box structure, and tie beam 2 and pier stud template are connected through bolt 15 between 1, and temporary support 3 is used for prefabricating 6 erects of box beam and falls roof beam and adjustment beam body elevations.
Pier stud template 1 be the sleeve that forms by 11 butt joints of two arc steel sheets, two arc steel sheets 11 are through wearing to establish bolt 15 on connecting plate 12 at 11 edges of arc steel sheet and connect, 11 lateral walls of arc steel sheet are provided with hoop stiffening rib 13 and vertical stiffening rib 14, connecting plate 12 corresponds the high position at tie beam 2 and widens with the bearing platform board.
The tie beam 2 comprises a middle tie beam and an edge tie beam, the tie beam 2 comprises a top plate 21, two webs 22, a bottom plate 23, transverse partition plates 24 and stiffening ribs 25, the two webs 22 are arranged between the top plate 21 and the bottom plate 23, the stiffening ribs 25 are arranged on the inner sides of the webs 22 and the top plate 21, and the transverse partition plates 24 are uniformly distributed on the inner sides and the outer sides of the two webs 22.
The web plate 22 of the tie beam 2 and the lug plates 16 welded on two sides of the top of the pier stud template 1 are connected into a whole through bolts 15, and web plate bolt holes 26 are reserved in the corresponding positions of the web plate 22.
A bent frame type rigid frame bridge precast box girder erection and pier girder cast-in-place integrated construction platform is provided, and a using method of the integrated construction platform comprises the following steps:
firstly, manufacturing a pier column template 1, a tie beam 2, a temporary support 3 and a prefabricated box girder 6 in a prefabrication factory according to design requirements;
secondly, transporting the pier stud template 1, the tie beam 2 and the temporary support 3 to the site, and sequentially installing the pier stud template 1, the tie beam 2 and the temporary support 3;
thirdly, pouring pier column concrete;
fourthly, after the strength of the pier stud concrete reaches the design requirement, erecting a bottom die 4 of a cast-in-place beam 5 on the platform;
fifthly, hoisting and erecting the prefabricated box girder 6;
sixthly, binding beam steel bars and pouring beam concrete;
and seventhly, sequentially removing the bottom die 4, the temporary support 3, the tie beam 2 and the pier stud template 1.
The above description is only for the purpose of example, and is not intended to limit the structure in any way. Other rectangular pier columns and the like belong to the technical scheme.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The above detailed description of the embodiments of the present invention is only for the purpose of describing the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (6)
1. Bent frame formula rigid frame bridge prefabricated box girder erects and cast-in-place integration construction platform of mound roof beam, its characterized in that: including a plurality of axis directions along the single pier stud set up in pier stud template (1) on pier stud surface, straining beam (2) and temporary support (3) of setting on straining beam (2) of being connected with pier stud template (1), pier stud template (1) bottom sprag is in pile foundation or cushion cap top, straining beam (2) are the welding box structure, are connected through bolt (15) between straining beam (2) and pier stud template (1), temporary support (3) are used for prefabricating box roof beam (6) and erect and fall roof beam and adjustment beam body elevation.
2. The integrated construction platform for erecting the prefabricated box girder of the bent frame type rigid frame bridge and casting the pier girder in situ according to claim 1, which is characterized in that: pier stud template (1) be by two arc steel sheet (11) butt joint sleeve that forms, two arc steel sheet (11) are through wearing to establish bolt (15) on connecting plate (12) at arc steel sheet (11) edge and connect.
3. The integrated construction platform for erecting the prefabricated box girder of the bent frame type rigid frame bridge and casting the pier girder in situ according to claim 2, which is characterized in that: the outer side wall of the arc-shaped steel plate (11) is provided with a circumferential stiffening rib (13) and a vertical stiffening rib (14), and the connecting plate (12) is widened at the corresponding height position of the tie beam (2) to support the platform plate.
4. The integrated construction platform for erecting the prefabricated box girder of the bent frame type rigid frame bridge and casting the pier girder in situ according to claim 3, which is characterized in that: pier stud template (1) top both sides respectively set up two sets of otic placodes (16) with single-row pier stud axis direction, the otic placode bolt hole (17) of being connected with tie beam (2) are reserved on otic placode (16).
5. The integrated construction platform for erecting the prefabricated box girder of the bent frame type rigid frame bridge and casting the pier girder in situ according to claim 4, which is characterized in that: the tie beam (2) comprises a middle tie beam and two side tie beams, the tie beam (2) is composed of a top plate (21), webs (22), a bottom plate (23), transverse partition plates (24) and stiffening ribs (25), the two webs (22) are arranged between the top plate (21) and the bottom plate (23), the stiffening ribs (25) are arranged on the inner side of the webs (22) and the top plate (21), and the plurality of transverse partition plates (24) are uniformly distributed on the inner side and the outer side of the two webs (22).
6. The integrated construction platform for erecting the prefabricated box girder of the bent frame type rigid frame bridge and casting the pier girder in situ according to claim 5, which is characterized in that: the web plate (22) of the tie beam (2) and the lug plates (16) welded on two sides of the top of the pier stud template (1) are connected into a whole through bolts (15), and web plate bolt holes (26) are reserved in the corresponding positions of the web plate (22).
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CN202222892062.0U CN218712241U (en) | 2022-11-01 | 2022-11-01 | Integrated construction platform for erecting prefabricated box girder of framed rigid frame bridge and casting pier girder in situ |
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CN202222892062.0U CN218712241U (en) | 2022-11-01 | 2022-11-01 | Integrated construction platform for erecting prefabricated box girder of framed rigid frame bridge and casting pier girder in situ |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN118273217A (en) * | 2024-05-07 | 2024-07-02 | 北京市市政工程设计研究总院有限公司 | Rigid frame bridge structure and construction method thereof |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN118273217A (en) * | 2024-05-07 | 2024-07-02 | 北京市市政工程设计研究总院有限公司 | Rigid frame bridge structure and construction method thereof |
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