CN112746554B - Combined cap beam and bridge having the same - Google Patents
Combined cap beam and bridge having the same Download PDFInfo
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- CN112746554B CN112746554B CN202110183046.1A CN202110183046A CN112746554B CN 112746554 B CN112746554 B CN 112746554B CN 202110183046 A CN202110183046 A CN 202110183046A CN 112746554 B CN112746554 B CN 112746554B
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- steel box
- box girder
- concrete
- steel
- shaping plate
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
本发明涉及组合盖梁技术领域，具体涉及一种组合盖梁及具有其的桥梁。组合盖梁，包括：钢箱梁，钢箱梁顶部设有浇筑口，钢箱梁内腔内浇筑有混凝土；定型板，安装在钢箱梁内腔内，定型板为弓形板，定型板的长度方向与钢箱梁的长度方向平行，定型板的凹面朝下设置，且定型板四周均与钢箱梁内腔抵接，混凝土浇筑在定型板的凸面与钢箱梁之间；隔板，设于钢箱梁内腔内，隔板与钢箱梁的长度方向垂直设置。钢箱梁和混泥土能够有效发挥各自的抗拉和抗压的功能，能够减小盖梁的整体体积，减轻盖梁的重量，使得钢箱梁的吊装和混凝土的浇筑更加方便。通过将混凝土直接浇筑到钢箱梁内，在浇筑混凝土时无需搭建额外的模板，使得盖梁施工更加简单。
The present invention relates to the technical field of composite cap beams, and in particular to a composite cap beam and a bridge having the same. The composite cap beam comprises: a steel box beam, a pouring port is provided at the top of the steel box beam, and concrete is poured in the inner cavity of the steel box beam; a shaping plate is installed in the inner cavity of the steel box beam, the shaping plate is an arched plate, the length direction of the shaping plate is parallel to the length direction of the steel box beam, the concave surface of the shaping plate is arranged downward, and the shaping plate is abutted against the inner cavity of the steel box beam on all sides, and concrete is poured between the convex surface of the shaping plate and the steel box beam; a partition is arranged in the inner cavity of the steel box beam, and the partition is arranged perpendicular to the length direction of the steel box beam. The steel box beam and concrete can effectively exert their respective tensile and compressive resistance functions, can reduce the overall volume of the cap beam, reduce the weight of the cap beam, and make the hoisting of the steel box beam and the pouring of concrete more convenient. By pouring concrete directly into the steel box beam, there is no need to build additional templates when pouring concrete, making the construction of the cap beam simpler.
Description
Technical Field
The invention relates to the technical field of combined bent caps, in particular to a combined bent cap and a bridge with the same.
Background
The bent cap refers to a cross beam arranged at the top of the bent pile pier for supporting, distributing and transferring the load of the upper structure. Also known as a hat beam. And arranging a beam of reinforced concrete or less reinforced concrete on the bridge pier or the row piles. The main function is to support the bridge superstructure and to transfer the full load to the substructure.
The combined bent cap structure in the prior art comprises a hollow box-type body poured by ultra-high performance concrete, a steel plate is embedded in the top surface of the hollow box-type body, and a plurality of shear connectors embedded in the hollow box-type body are arranged on the lower surface of the steel plate. However, the combined box type bent cap is large in dead weight, and is difficult to construct no matter in prefabrication molding or in-situ casting molding, so that the service period is long, and the construction difficulty is high.
Disclosure of Invention
Therefore, the invention aims to overcome the defect of high construction difficulty of the combined bent cap in the prior art, thereby providing the combined bent cap and the bridge with the same.
In order to solve the above technical problems, the present invention provides a combined capping beam, including:
the top of the steel box girder is provided with a pouring opening, and concrete is poured in the inner cavity of the steel box girder;
The shaping plate is arranged in the inner cavity of the steel box girder, the length direction of the shaping plate is parallel to the length direction of the steel box girder, the concave surface of the shaping plate is arranged downwards, the periphery of the shaping plate is abutted with the inner cavity of the steel box girder, and concrete is poured between the convex surface of the shaping plate and the steel box girder;
The baffle is arranged in the inner cavity of the steel box girder and is perpendicular to the length direction of the steel box girder.
Optionally, the baffle is equipped with a plurality ofly, and a plurality of baffles all parallel arrangement just follow the length direction interval distribution of steel case roof beam.
Optionally, the pouring openings are multiple, and the multiple pouring openings are respectively arranged between the adjacent partition plates.
Optionally, the inner wall of the steel box girder and the shaping plate are connected with shear bolts.
Optionally, at least one side of the steel box girder is connected with an overhanging bracket.
The invention also provides a bridge, which is provided with the combined bent cap.
Optionally, at least one side of the steel box girder is connected with a supporting girder, and a concrete layer is arranged on the supporting girder.
Optionally, a supporting steel plate is installed between the supporting steel beam and the concrete layer, and a plurality of reinforcing bolts are connected to the supporting steel plate.
Optionally, the concrete layer is a precast concrete panel.
The technical scheme of the invention has the following advantages:
1. The invention provides a combined bent cap, which comprises the following components: the top of the steel box girder is provided with a pouring opening, and concrete is poured in the inner cavity of the steel box girder; the shaping plate is arranged in the inner cavity of the steel box girder, the length direction of the shaping plate is parallel to the length direction of the steel box girder, the concave surface of the shaping plate is arranged downwards, the periphery of the shaping plate is abutted with the inner cavity of the steel box girder, and concrete is poured between the convex surface of the shaping plate and the steel box girder; the baffle is arranged in the inner cavity of the steel box girder and is perpendicular to the length direction of the steel box girder.
When the combined bent cap is constructed, the steel box girder with the shaping plate is hoisted to the position to be installed, concrete is poured into the steel box girder through a pouring opening formed in the top of the steel box girder, so that the concrete layer solidified and formed in the steel box girder is thicker at two ends along the length direction of the steel box girder, the middle is poured thin, and the concrete layer is concentrated at the top position of the steel box girder. The provision of the diaphragm can increase the shear capacity of the steel box girder. In the using process of the bridge, in the length direction of the steel box girder, the two ends of the bottom of the steel box girder are pressed and the middle is pulled. The concrete in the steel box girder is formed into the arc shape, so that the concrete on two sides is pressed, the middle steel box girder is pulled, the steel box girder and concrete can effectively exert respective tensile and compressive functions, meanwhile, the whole volume of the capping girder is reduced, the weight of the capping girder is reduced, and the lifting of the steel box girder and the pouring of the concrete are more convenient. Through pouring the concrete directly into the steel box girder, no additional template is required to be built when the concrete is poured, so that the capping girder construction is simpler.
2. The combined bent cap provided by the invention is provided with a plurality of partition boards, and the plurality of partition boards are arranged in parallel and are distributed at intervals along the length direction of the steel box girder. The shearing resistance of the steel box girder is improved by arranging the plurality of partition plates in the steel box girder at intervals, so that the steel box girder has smaller volume and can provide larger structural bearing capacity.
3. The inner wall of the steel box girder and the shaping plate are connected with shear bolts. The shear bolt is arranged to enhance the connection stability between the concrete and the inner wall of the steel box girder, increase the connection strength between the concrete and the steel box girder and increase the shear resistance inside the steel box girder.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the internal structure of a steel box girder provided in an embodiment of the present invention.
Fig. 2 is a schematic structural view of concrete poured inside a steel box girder according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a steel box girder and supporting steel girder connection provided in an embodiment of the present invention.
Fig. 4 is a schematic structural view of a connection between a supporting steel plate and a supporting steel beam according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a bridge provided in an embodiment of the present invention.
Reference numerals illustrate: 1. a steel box girder; 2. shaping plates; 3. pouring the port; 4. a partition plate; 5. shear bolts; 6. overhanging corbels; 7. supporting the steel girder; 8. a reinforcing bolt; 9. precast concrete slab.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. 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.
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 different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
Fig. 1 to 5 show that in this embodiment, a composite capping beam is provided, which includes: the steel box girder 1, the shaping plate 2 and the concrete poured in the steel box girder 1.
As shown in fig. 1 and 2, a pouring opening 3 is formed in the top of the steel box girder 1, and concrete is poured in the inner cavity of the steel box girder 1. The shaping plate 2 is installed in the inner cavity of the steel box girder 1, the shaping plate 2 is a cambered plate, the length direction of the shaping plate 2 is parallel to the length direction of the steel box girder 1, the concave surface of the shaping plate 2 is arranged downwards, the periphery of the shaping plate 2 is abutted to the inner cavity of the steel box girder 1, and concrete is poured between the convex surface of the shaping plate 2 and the steel box girder 1.
A plurality of baffle plates 4 are connected in the inner cavity of the steel box girder 1. The partition plate 4 is arranged perpendicular to the length direction of the steel box girder 1. The plurality of partition plates 4 are all arranged in parallel and distributed at intervals along the length direction of the steel box girder 1. Four sides of the partition plate 4 are connected with the inner wall of the steel box girder 1 so as to divide the inner cavity of the steel box girder 1 into a plurality of chambers. The shaping plates 2 are arranged on two sides of the partition plate 4 at the middle position in the steel box girder 1, and the shaping plates 2 are symmetrically arranged relative to the partition plate 4 at the middle position in the steel box girder 1. By arranging the plurality of partition plates 4 in the inner cavity of the steel box girder 1, the shearing resistance of the steel box girder 1 is increased, and the steel box girder 1 can provide larger bearing capacity while the volume of the steel box girder 1 is reduced. A plurality of pouring openings 3 are formed in the top of the steel box girder 1, and the pouring openings 3 are respectively arranged between the adjacent partition plates 4. The inner wall of the steel box girder 1and the shaping plate 2 are connected with shear bolts 5. As shown in fig. 3, in order to facilitate the external connection of other steel structures or concrete structures on the steel box girder 1, a plurality of overhanging brackets 6 for connecting the external connection steel girder are connected to one side of the steel box girder 1, and the overhanging brackets 6 extend along the horizontal direction.
When the combined bent cap is constructed, the steel box girder 1, the shaping plate 2, the partition plate 4 and the shear bolts 5 inside the steel box girder 1 are prefabricated and molded in a factory. The steel box girder 1 with the shaping plate 2 is hoisted to the position to be installed, concrete is poured into the steel box girder 1 through a pouring opening 3 formed in the top of the steel box girder 1, so that a concrete layer solidified and formed in the steel box girder 1 is thicker at two ends along the length direction of the steel box girder 1, the middle is poured thin, and the concrete layer is concentrated at the top position of the steel box girder 1. In the using process of the bridge, the two ends of the bottom of the steel box girder 1 are pressed and the middle is pulled along the length direction of the steel box girder 1. By forming the concrete in the steel box girder 1 into an arch shape, the concrete on two sides is pressed, the middle steel box girder 1 is pulled, the steel box girder 1 and concrete can effectively exert respective tensile and compressive functions, meanwhile, the whole volume of the capping girder is reduced, the weight of the capping girder is lightened, and the lifting, transportation and concrete pouring of the steel box girder 1 are more convenient. Through pouring the concrete directly into the steel box girder 1, need not to build extra template when pouring the concrete, the tie point between the steel construction is less when the bent cap field construction, and it is more convenient to connect for the bent cap construction is simpler.
Example 2
Fig. 3 to 5 show a bridge provided in this embodiment, which has the composite capping beam described in embodiment 1.
One side of a steel box girder 1 on the combined cover girder is connected with a supporting steel girder 7, the supporting steel girder 7 is I-shaped steel, the supporting steel girder 7 is connected with an overhanging bracket 6 through a connecting steel plate, and a concrete layer is arranged on the supporting steel girder 7. A supporting steel plate is arranged between the supporting steel beam 7 and the concrete layer, and a plurality of reinforcing bolts 8 are welded on the supporting steel plate. The concrete layer may be a precast concrete panel 9 or a cast-in-place concrete layer. In order to accelerate the site construction progress and shorten the site construction period, the precast concrete board 9 is selected as the concrete layer in the embodiment. To increase the support strength of the capping beam to the deck, a plurality of the composite capping beams described in example 1 are connected to one end of the bridge.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (5)
1. A bridge, comprising:
The steel box girder (1), steel box girder (1) top is equipped with pours mouth (3), steel box girder (1) intracavity has been pour concrete, steel box girder (1) is connected with overhanging bracket (6) in one side at least, be connected with on overhanging bracket (6) through the connection steel sheet and support girder steel (7), be equipped with concrete layer on supporting girder steel (7), support girder steel (7) and install the supporting steel sheet between the concrete layer, be connected with a plurality of strengthening bolts (8) on the supporting steel sheet;
The shaping plate (2) is arranged in the inner cavity of the steel box girder (1), the shaping plate (2) is a cambered plate, the length direction of the shaping plate (2) is parallel to the length direction of the steel box girder (1), the concave surface of the shaping plate (2) is arranged downwards, the periphery of the shaping plate (2) is abutted to the inner cavity of the steel box girder (1), and concrete is poured between the convex surface of the shaping plate (2) and the steel box girder (1);
the partition plate (4) is arranged in the inner cavity of the steel box girder (1), and the partition plate (4) is perpendicular to the length direction of the steel box girder (1).
2. Bridge according to claim 1, wherein a plurality of the partition plates (4) are provided, and wherein a plurality of the partition plates (4) are arranged in parallel and are distributed at intervals along the length direction of the steel box girder (1).
3. Bridge according to claim 1, wherein a plurality of pouring openings (3) are provided, a plurality of pouring openings (3) being provided between adjacent partition plates (4), respectively.
4. A bridge according to any one of claims 1 to 3, wherein shear bolts (5) are connected to both the inner wall of the steel box girder (1) and to the profiled plates (2).
5. Bridge according to claim 1, characterized in that the concrete layer is a precast concrete slab (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110183046.1A CN112746554B (en) | 2021-02-08 | 2021-02-08 | Combined cap beam and bridge having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110183046.1A CN112746554B (en) | 2021-02-08 | 2021-02-08 | Combined cap beam and bridge having the same |
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| Publication Number | Publication Date |
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| CN112746554A CN112746554A (en) | 2021-05-04 |
| CN112746554B true CN112746554B (en) | 2024-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110183046.1A Active CN112746554B (en) | 2021-02-08 | 2021-02-08 | Combined cap beam and bridge having the same |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113215959A (en) * | 2021-05-15 | 2021-08-06 | 石家庄铁道大学 | Shear-resistant connecting member for steel-concrete composite beam |
| CN113699870A (en) * | 2021-08-31 | 2021-11-26 | 湖南省交通规划勘察设计院有限公司 | Hidden cover beam connecting structure |
| CN114892870B (en) * | 2022-06-14 | 2023-08-22 | 河南黄国钢结构有限公司 | Steel and concrete assembled structure and forming device thereof |
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| CN101338608A (en) * | 2008-08-29 | 2009-01-07 | 清华大学 | Steel-concrete composite transfer beam |
| CN111254813A (en) * | 2018-11-30 | 2020-06-09 | 上海浦东建筑设计研究院有限公司 | Steel and concrete combined bent cap and manufacturing method thereof |
| CN214993002U (en) * | 2021-02-08 | 2021-12-03 | 清华大学 | Combined capping beam and bridge with same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206328669U (en) * | 2016-11-10 | 2017-07-14 | 河南大建桥梁钢构股份有限公司 | The narrow composite beam of steel box of new concrete |
| CN108457182B (en) * | 2018-05-18 | 2024-04-30 | 中山职业技术学院 | Orthotropic bridge deck and construction process thereof |
| CN212103670U (en) * | 2020-01-20 | 2020-12-08 | 华设设计集团股份有限公司 | Be applied to bridge floor semi-rigid continuous structure of simply supported steel and concrete composite beam bridge |
| CN111910500B (en) * | 2020-02-21 | 2024-09-27 | 清华大学 | Anti-overturning composite bridge and construction method |
| CN111764249B (en) * | 2020-07-02 | 2024-12-31 | 中铁大桥科学研究院有限公司 | A composite beam structure of UHPC honeycomb prefabricated panel-steel box beam and construction method |
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2021
- 2021-02-08 CN CN202110183046.1A patent/CN112746554B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338608A (en) * | 2008-08-29 | 2009-01-07 | 清华大学 | Steel-concrete composite transfer beam |
| CN111254813A (en) * | 2018-11-30 | 2020-06-09 | 上海浦东建筑设计研究院有限公司 | Steel and concrete combined bent cap and manufacturing method thereof |
| CN214993002U (en) * | 2021-02-08 | 2021-12-03 | 清华大学 | Combined capping beam and bridge with same |
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