CN111794423A - Steel-concrete combined beam structure, building and construction method - Google Patents
Steel-concrete combined beam structure, building and construction method Download PDFInfo
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- CN111794423A CN111794423A CN202010688382.7A CN202010688382A CN111794423A CN 111794423 A CN111794423 A CN 111794423A CN 202010688382 A CN202010688382 A CN 202010688382A CN 111794423 A CN111794423 A CN 111794423A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/023—Separate connecting devices for prefabricated floor-slabs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/10—Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
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Abstract
The steel-concrete combined beam structure comprises a corrugated web steel beam, prefabricated plates are lapped on the upper surface of the upper flange of the corrugated web steel beam, abutted seams are formed between every two adjacent prefabricated plates, concrete is poured in the abutted seams, the adjacent prefabricated plates are connected through lapped reinforcing steel bars, a post-pouring layer is arranged on the upper end surfaces of the prefabricated plates, the post-pouring layer and the prefabricated plates form a laminated plate structure, profiled steel plates are arranged in the abutted seams, and the bottom surfaces of the profiled steel plates are flush with the lower end surfaces of the prefabricated plates so as to receive the concrete in the abutted seams. The construction method can improve the structural strength and integrity of the composite beam, reduce the laying of the template, simplify the construction process and improve the construction efficiency.
Description
Technical Field
The disclosure belongs to the technical field of constructional engineering, and particularly relates to a steel-concrete composite beam structure, a building and a construction method.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The steel-concrete composite girder refers to a bending-resistant member working together by integrally connecting a steel girder and a concrete slab through a shear connector. When the composite beam bears the action of positive bending moment, the concrete slab is in the compression area, and the steel beam is mostly in the tension area, so that the respective mechanical properties of the two materials can be fully exerted. Compared with reinforced concrete beams, the combined beam can greatly reduce the self weight of the structure, has larger span-height ratio and is convenient to construct; compared with steel beams, the composite beam has the advantages of high bending rigidity, small structural height, good stability and the like. Therefore, the composite beam has been widely applied in the fields of industry and civil architecture in China in recent years.
With the advance of assembly type building structures in recent years, a novel composite slab beam is provided, and the composite slab consists of a precast slab and a post-cast layer. The prefabricated slab participates in the stress of the slab as a part of the floor slab, and can play a role of a template in the pouring process of the post-pouring layer, so that the using amount of the template is reduced. And the splicing seams exist among the precast slabs of the laminated slab, so that the area of a single precast slab is reduced, the dead weight is reduced, and the transportation and hoisting construction are convenient. Therefore, the composite slab beam has the advantages of reducing the using amount of templates, improving the construction efficiency, improving the industrialization degree and the like.
However, the inventor finds that the steel beam part of the existing composite beam needs to be provided with a large number of stiffening ribs, the construction is complex, the steel consumption is large, the plane rigidity and the shear-bending resistance bearing capacity are poor, and the local bearing capacity and the fatigue resistance are also poor. Meanwhile, the concrete at the abutted seam position needs to use a template when being poured, the construction process is complex, and the concrete at the abutted seam position is easy to leak under the condition of long-time use.
Disclosure of Invention
An object of the present disclosure is to provide a steel-concrete composite beam structure, a building and a construction method, which can solve at least one of the above technical problems.
In order to achieve the above object, a first aspect of the present disclosure provides a steel-concrete composite beam structure, including a corrugated web steel beam, where prefabricated plates are lapped on an upper surface of an upper flange of the corrugated web steel beam, a seam is formed between adjacent prefabricated plates, concrete is poured into the seam, the adjacent prefabricated plates are connected by lapping steel bars, a post-cast layer is disposed on an upper end surface of the prefabricated plates, and the post-cast layer and the prefabricated plates form a laminated plate structure;
and a profiled steel sheet is arranged in the abutted seam, and the bottom surface of the profiled steel sheet is flush with the lower end surface of the precast slab so as to bear the concrete in the abutted seam.
As a further improvement of the first aspect, the profiled steel sheet comprises a bottom plate, two webs are arranged on two sides of the bottom plate, wing plates are connected to the top ends of the two webs respectively, the wing plates extend in the direction away from the bottom plate, the bottom plate is parallel to the wing plates, and the bottom plate is perpendicular to the webs.
A second aspect of the present disclosure provides a construction method of a steel-concrete composite beam structure, including the steps of:
fixing a corrugated web steel beam, and welding a shear connector on the upper surface of the upper flange of the corrugated web steel beam;
the prefabricated plates are lapped on the upper surface of the upper flange of the corrugated web steel beam, the prefabricated plates are supported through the preset support, and the abutted seams are formed between the adjacent prefabricated plates.
Placing profiled steel sheets at the abutted seams, and connecting the overlapped steel bars on the two sides of the abutted seams after penetrating through the profiled steel sheets;
and leveling the plane of the precast slab, pouring concrete in the abutted seams after leveling, and pouring a post-pouring layer.
A third aspect of the present disclosure provides a building including the above-described steel-concrete composite beam structure.
The beneficial effects of one or more of the above technical solutions are as follows:
(1) the profiled steel sheets are arranged in the joints of the two prefabricated plates, so that the impermeability of the laminated plate and the shearing resistance of the joints are improved, and a template is not required to be used during construction. The height of a floor structure can be reduced, the self weight of the structure is reduced, and higher bearing capacity and fatigue resistance can be obtained; the method simplifies the field construction mode, has high assembly degree, improves the construction efficiency, saves the construction period and has better comprehensive benefit.
(2) Compared with the traditional steel beam, the corrugated web steel beam has thinner web thickness and can obtain larger out-of-plane rigidity and higher anti-shearing buckling bearing capacity without stiffening ribs; can effectually alleviate the structure dead weight, reduce floor structure height, local bearing capacity and fatigue resistance can also improve to some extent simultaneously, consequently this type girder steel has higher bearing capacity and economic advantage.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a schematic cross-sectional view of the overall structure in embodiment 1 of the present disclosure;
FIG. 2 is a schematic view of the connection between a corrugated web steel beam and a precast slab and other partial structures in example 1 of the present disclosure;
FIG. 3 is a schematic axial view of the overall structure in example 1 of the present disclosure;
FIG. 4 is a schematic structural view of a corrugated web steel beam in example 1 of the present disclosure;
fig. 5 is a schematic structural view of a press-formed steel sheet in example 1 of the present disclosure.
Wherein, 1, post-pouring layer; 2. distributing reinforcing steel bars; 3. prefabricating a slab; 4. an upper flange plate; 5. a corrugated web; 6. a lower flange plate; 7. splicing; 8. truss reinforcing steel bars; 9. a shear connector; 10. profiled steel sheets; 11. lapping reinforcing steel bars; 101. a first wing plate; 102. a base plate; 103. a second wing plate; 104. a second web; 105. a first web; 106. and (4) holes.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Example 1
As shown in fig. 1 to 5, the present embodiment provides a steel-concrete composite beam structure, which includes a corrugated web steel beam, prefabricated slabs 3 are lapped on the upper surface of the upper flange of the corrugated web steel beam, a seam 7 is formed between adjacent prefabricated slabs 3, concrete is poured in the seam 7, adjacent prefabricated slabs 3 are connected with a profiled steel sheet 10 through a lap joint steel bar 11, a post-cast layer 1 is disposed on the upper end surface of each prefabricated slab 3, and the post-cast layer 1 and the prefabricated slabs 3 form a laminated structure; and a profiled steel sheet 10 is arranged in the abutted seam 7, and the bottom surface of the profiled steel sheet 10 is flush with the lower end surface of the precast slab 3 so as to receive concrete in the abutted seam 7.
It should be pointed out that in this embodiment, steel wire rope ligature can be adopted between the overlap joint reinforcing bar, or the mode of U shaped steel muscle tractive, and specific structural style can be set by oneself by the technical staff in this field, and the no longer repeated description here.
The profiled steel sheet 10 comprises a bottom plate 102, two webs are arranged on two sides of the bottom plate 102, top ends of the two webs are respectively connected with wing plates, the wing plates extend towards a direction far away from the bottom plate 102, the bottom plate 102 is parallel to the wing plates, and the bottom plate 102 is perpendicular to the webs.
Specifically, the two webs are a first web 105 and a second web 104, respectively, and the two wings are a first wing 101 and a second wing 103, respectively.
The web plate can be attached to the side face, close to the splicing seam 7, of the precast slab 3, and the wing plate is lapped on the upper end face of the precast slab 3 to realize support; holes 106 are provided in the web according to the position of the overlap bars 11 to pass through the overlap bars 11.
Specifically, in this embodiment, the profile formed by enclosing the web and the bottom plate of the profiled steel sheet is the same as the structural shape of the seam, so that the profiled steel sheet can fit the seam structure, and the integrity of the adjacent prefabricated plates during connection is improved.
In this embodiment, the height of the profiled steel sheet web is the same as that of the prefabricated slab, the width of the wing plate is equal to half of the width of the prefabricated slab, and the lengths of the bottom plate, the web and the wing plate are equal to the length of the prefabricated slab. The profiled steel sheet web is attached to the side face of the precast slab, and the profiled steel sheet wing plate is attached to the upper surface of the precast slab.
In other embodiments, the width of the wing plate is not necessarily equal to half of the width of the prefabricated plate, and can be adjusted by those skilled in the art as required, and will not be described herein.
In this embodiment, the upper surface of the upper flange of the corrugated web steel beam is provided with a shear connector 9, the shear connector 9 is embedded into the post-cast layer 1, and the bottom of the shear connector is fixedly connected with the upper flange plate.
It can be understood that common shear connector generally is the peg, can set up many pegs at the upper surface equipartition on corrugated web girder steel top flange in this scheme, and the peg generally adopts welded mode and girder steel to be connected, but also can adopt other fixed modes such as threaded connection. Meanwhile, the shear connectors in the embodiment can also adopt structural forms such as channel steel connectors and bent rib connectors, and can be set by the person skilled in the art, and the description is omitted here.
The prefabricated slab 3 is internally provided with truss reinforcing steel bars 8, one part of the truss reinforcing steel bars is embedded into the prefabricated slab, the other part of the truss reinforcing steel bars extends into the post-pouring layer, the post-pouring layer and the prefabricated slab form a laminated slab structure, and the truss reinforcing steel bars are used for enhancing the structural strength and integrity of the prefabricated slab and the post-pouring layer.
The corrugated web steel beam comprises an upper flange plate 4 and a lower flange plate 6 which are parallel to each other, a corrugated web 5 is fixedly connected between the upper flange plate 4 and the lower flange plate 6, and the cross section of the corrugated web 5 is corrugated.
In this embodiment, the main difference between the corrugated web steel beam and the ordinary i-shaped steel beam is the shape of the web, and the web in the ordinary i-shaped steel beam is flat, and the corrugated web in this embodiment can obtain larger out-of-plane stiffness and higher shear buckling resistance bearing capacity compared with a flat plate, and effectively reduce the height of the cross section.
The prefabricated plate 3 and the post-cast layer are respectively provided with a distributed steel bar 2, and the extending direction of the distributed steel bar 2 is perpendicular to the extending direction of the corrugated web steel beam.
Example 2
The embodiment provides a construction method of a steel-concrete composite beam structure, which comprises the following steps:
and 2, overlapping the prefabricated plates 3 on the upper surfaces of the upper flanges of the steel beams of the corrugated webs, supporting the prefabricated plates 3 through preset supports, reserving overlapped steel bars with certain lengths at the splicing positions of the adjacent prefabricated plates, and enabling the positions of the overlapped steel bars to be the splicing positions between the adjacent prefabricated plates. And a profiled steel sheet is placed at the abutted seam to connect the two precast slabs. The width of the profiled steel sheet bottom plate is the same as the width of the splicing seam, the height of the left web plate and the right web plate is the same as the height of the precast slab, and the length of the profiled steel sheet bottom plate is the same as the span of the precast slab. And the left web plate and the right web plate of the profiled steel sheet are provided with holes according to the positions of the lap-jointed steel bars, so that the lap-jointed steel bars can conveniently pass through the holes.
and 4, leveling the plane of the whole member, pouring a concrete post-pouring layer after leveling, pouring together with the lap joint part (the seam splicing position) of the steel bars of the precast slab, and maintaining after pouring.
After the maintenance is finished, the adjacent prefabricated plates are connected together with the lapping steel bars through the profiled steel sheets, and at the moment, the independent prefabricated plates at the bottom are connected into a whole plate. Concrete is poured between the upper surface of the precast slab and the abutted seams of the precast slab, the precast slab and the post-cast layer form an integral laminated slab, and the laminated slab is connected with the corrugated web steel beam into a whole through the shear connector, namely the integral laminated slab corrugated web combined beam.
Specifically, the manufacturing stage of the corrugated web steel beam and the precast slab before the construction of the composite beam is as follows: and welding the upper flange plate, the lower flange plate and the corrugated steel web into a corrugated web steel beam. And welding a shear connector at an upper flange plate of the corrugated web steel beam.
And (4) processing the precast slabs, and embedding truss steel bars (one part of the truss steel bars is embedded in the precast slabs, and the other part of the truss steel bars is embedded in the post-cast layer after the post-cast layer is poured) and lap joint steel bars in the slabs in advance.
Example 3
This example provides a building using the steel-concrete composite beam structure described in example 1. The building in this embodiment may be a bridge or an assembled house, and a person skilled in the art may select a use occasion of the composite beam by himself, which is not described herein again.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1. A steel-concrete combined beam structure is characterized by comprising a corrugated web steel beam, prefabricated plates are lapped on the upper surface of an upper flange of the corrugated web steel beam, abutted seams are formed between every two adjacent prefabricated plates, concrete is poured in the abutted seams, the adjacent prefabricated plates are connected through lapped reinforcing steel bars, a post-pouring layer is arranged on the upper end surfaces of the prefabricated plates, and the post-pouring layer and the prefabricated plates form a laminated plate structure;
and a profiled steel sheet is arranged in the abutted seam, and the bottom surface of the profiled steel sheet is flush with the lower end surface of the precast slab so as to bear the concrete in the abutted seam.
2. The steel-concrete composite beam structure according to claim 1, wherein the profiled steel sheet comprises a bottom plate, two webs are disposed at both sides of the bottom plate, a wing plate is connected to the top end of each web, the wing plates extend away from the bottom plate, the bottom plate is parallel to the wing plates, and the bottom plate is perpendicular to the webs.
3. The steel-concrete composite beam structure according to claim 2, wherein the profiled steel sheet web is attached to a side surface of the precast slab near the butt seam, and the profiled steel sheet wing is overlapped on an upper end surface of the precast slab for support; the web plate is provided with a hole for passing through the lap steel bar.
4. The steel-concrete composite beam structure according to claim 3, wherein the sides of the flanges between the adjacent gores are parallel to each other.
5. The steel-concrete composite beam structure according to claim 1, wherein the upper surface of the upper flange of the corrugated web steel beam has a shear connector, which is upwardly embedded in the post-cast layer.
6. The steel-concrete composite beam structure according to claim 1, wherein truss reinforcing bars are provided in the post-cast layer and the precast slabs, respectively, and a part of the truss reinforcing bars is pre-buried in the precast slabs and the other part thereof extends into the post-cast layer.
7. The steel-concrete composite beam structure according to claim 1, wherein the corrugated web steel beam includes an upper flange plate and a lower flange plate which are parallel to each other, a corrugated web is fixedly connected between the upper flange plate and the lower flange plate, and the cross-sectional shape of the corrugated web is corrugated.
8. The steel-concrete composite beam structure according to claim 1, wherein the precast slabs and the post-cast layer are provided therein with distribution bars, respectively, the distribution bars extending in a direction perpendicular to the direction of extension of the corrugated web steel beam.
9. A construction method of a steel-concrete composite girder structure according to any one of claims 1 to 8, comprising the steps of:
fixing a corrugated web steel beam, and welding a shear connector on the upper surface of the upper flange of the corrugated web steel beam;
the prefabricated plates are lapped on the upper surface of the upper flange of the corrugated web steel beam, the prefabricated plates are supported through a preset support, and a splicing seam is formed between every two adjacent prefabricated plates;
placing profiled steel sheets at the abutted seams, and connecting the overlapped steel bars on the two sides of the abutted seams after penetrating through the profiled steel sheets;
and leveling the plane of the precast slab, pouring concrete in the abutted seams after leveling, and pouring a post-pouring layer.
10. A building comprising a steel-concrete composite beam structure according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010688382.7A CN111794423A (en) | 2020-07-16 | 2020-07-16 | Steel-concrete combined beam structure, building and construction method |
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| CN202010688382.7A CN111794423A (en) | 2020-07-16 | 2020-07-16 | Steel-concrete combined beam structure, building and construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112976226A (en) * | 2021-01-25 | 2021-06-18 | 湖南嘉晟住建科技有限公司 | Manufacturing method of novel steel-concrete combined corrugated web H-shaped beam |
| CN113653235A (en) * | 2021-08-31 | 2021-11-16 | 筑友智造建设科技集团有限公司 | Laminated slab, connecting structure of laminated slab and combination beam and construction method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587575A (en) * | 2004-06-30 | 2005-03-02 | 清华大学 | Steel-concrete folding plate combined beam |
| CN101220697A (en) * | 2008-01-24 | 2008-07-16 | 同济大学 | Double-ripple ventral shield steel case built-up beam |
| CN204152045U (en) * | 2014-07-28 | 2015-02-11 | 陕西昊兴房屋工程有限公司 | A kind of back-buckling type floor support plate and composite floor system thereof |
| CN104594511A (en) * | 2015-01-17 | 2015-05-06 | 安徽建筑大学 | Laminated slab subjected to abutted seam assembling by corrugated steel plate with seam steel bars |
| CN106049732A (en) * | 2016-07-15 | 2016-10-26 | 中国矿业大学 | Honeycomb pore profiled steel sheet bidirectional overlapped floor slab |
| CN109779114A (en) * | 2019-01-25 | 2019-05-21 | 山东建筑大学 | A kind of monoblock type folding plate combined beam |
| CN210032270U (en) * | 2019-05-07 | 2020-02-07 | 南通市达欣工程股份有限公司 | Assembly type laminated slab joint structure free of formwork |
| JP2020033816A (en) * | 2018-08-31 | 2020-03-05 | Ｊｆｅ建材株式会社 | Support structure and composite slab structure with support structure |
| CN111794425A (en) * | 2020-07-17 | 2020-10-20 | 山东建筑大学 | Separated laminated slab honeycomb combination beam and method |
| CN111794424A (en) * | 2020-07-17 | 2020-10-20 | 山东建筑大学 | Integral laminated slab honeycomb combination beam and manufacturing method thereof |
| CN212802262U (en) * | 2020-07-16 | 2021-03-26 | 山东建筑大学 | Combined beam structure for building and building |
-
2020
- 2020-07-16 CN CN202010688382.7A patent/CN111794423A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587575A (en) * | 2004-06-30 | 2005-03-02 | 清华大学 | Steel-concrete folding plate combined beam |
| CN101220697A (en) * | 2008-01-24 | 2008-07-16 | 同济大学 | Double-ripple ventral shield steel case built-up beam |
| CN204152045U (en) * | 2014-07-28 | 2015-02-11 | 陕西昊兴房屋工程有限公司 | A kind of back-buckling type floor support plate and composite floor system thereof |
| CN104594511A (en) * | 2015-01-17 | 2015-05-06 | 安徽建筑大学 | Laminated slab subjected to abutted seam assembling by corrugated steel plate with seam steel bars |
| CN106049732A (en) * | 2016-07-15 | 2016-10-26 | 中国矿业大学 | Honeycomb pore profiled steel sheet bidirectional overlapped floor slab |
| JP2020033816A (en) * | 2018-08-31 | 2020-03-05 | Ｊｆｅ建材株式会社 | Support structure and composite slab structure with support structure |
| CN109779114A (en) * | 2019-01-25 | 2019-05-21 | 山东建筑大学 | A kind of monoblock type folding plate combined beam |
| CN210032270U (en) * | 2019-05-07 | 2020-02-07 | 南通市达欣工程股份有限公司 | Assembly type laminated slab joint structure free of formwork |
| CN212802262U (en) * | 2020-07-16 | 2021-03-26 | 山东建筑大学 | Combined beam structure for building and building |
| CN111794425A (en) * | 2020-07-17 | 2020-10-20 | 山东建筑大学 | Separated laminated slab honeycomb combination beam and method |
| CN111794424A (en) * | 2020-07-17 | 2020-10-20 | 山东建筑大学 | Integral laminated slab honeycomb combination beam and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 吕俊利等: "分离式叠合板组合梁抗火性能研究与数值分析", 《工程力学》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112976226A (en) * | 2021-01-25 | 2021-06-18 | 湖南嘉晟住建科技有限公司 | Manufacturing method of novel steel-concrete combined corrugated web H-shaped beam |
| CN113653235A (en) * | 2021-08-31 | 2021-11-16 | 筑友智造建设科技集团有限公司 | Laminated slab, connecting structure of laminated slab and combination beam and construction method |
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Application publication date: 20201020 |