CN112746554A - Combined capping beam and bridge with same - Google Patents
Combined capping beam and bridge with same Download PDFInfo
- Publication number
- CN112746554A CN112746554A CN202110183046.1A CN202110183046A CN112746554A CN 112746554 A CN112746554 A CN 112746554A CN 202110183046 A CN202110183046 A CN 202110183046A CN 112746554 A CN112746554 A CN 112746554A
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- Prior art keywords
- steel box
- box girder
- concrete
- steel
- girder
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 141
- 239000010959 steel Substances 0.000 claims abstract description 141
- 239000004567 concrete Substances 0.000 claims abstract description 49
- 238000007493 shaping process Methods 0.000 claims abstract description 32
- 239000002131 composite material Substances 0.000 claims abstract 7
- 238000005192 partition Methods 0.000 claims description 13
- 239000011178 precast concrete Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000004513 sizing Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 9
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000011374 ultra-high-performance concrete Substances 0.000 description 1
Images
Classifications
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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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of combined capping beams, in particular to a combined capping beam and a bridge with the same. A composite capping beam comprising: 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 plates are arranged in the inner cavities of the steel box girders and are cambered plates, the length directions of the shaping plates are parallel to the length directions of the steel box girders, the concave surfaces of the shaping plates are arranged downwards, the peripheries of the shaping plates are abutted to the inner cavities of the steel box girders, and concrete is poured between the convex surfaces of the shaping plates and the steel box girders; 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. The steel box girder and the concrete can effectively exert respective tensile and compression resistant functions, the overall volume of the bent cap can be reduced, the weight of the bent cap is reduced, and the hoisting of the steel box girder and the pouring of the concrete are more convenient. Through in directly pouring the steel box girder with the concrete, need not to build extra template when pouring the concrete for the bent cap construction is simpler.
Description
Technical Field
The invention relates to the technical field of combined capping beams, in particular to a combined capping beam and a bridge with the same.
Background
The capping beam refers to a cross beam provided on the top of the bent pier to support, distribute and transfer the load of the superstructure. Also known as a hat beam. And arranging a beam made of reinforced concrete or less reinforced concrete on the pier or the row piles. The main function is to support the bridge superstructure and transfer all loads to the substructure.
The combined bent cap structure in the prior art comprises a hollow box-type body poured by ultrahigh-performance concrete, a steel plate is pre-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 has large dead weight, and is not easy to construct in both prefabrication molding and cast-in-place molding, so that the service cycle is long, and the construction difficulty is high.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect of high construction difficulty of the combined capping beam in the prior art, so that the combined capping beam and the bridge with the combined capping beam are provided.
In order to solve the above technical problem, the present invention provides a combined bent cap, 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 plates are arranged in the inner cavities of the steel box girders and are cambered plates, the length directions of the shaping plates are parallel to the length directions of the steel box girders, the concave surfaces of the shaping plates are arranged downwards, the peripheries of the shaping plates are abutted to the inner cavities of the steel box girders, and concrete is poured between the convex surfaces of the shaping plates and the steel box girders;
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 are all parallel arrangement, and along the length direction interval distribution of steel box girder.
Optionally, the pouring openings are provided in plurality, and the pouring openings are respectively provided between adjacent partition plates.
Optionally, the inner wall of the steel box girder and the shaping plate are both connected with shear bolts.
Optionally, an overhanging bracket is connected to at least one side of the steel box girder.
The invention also provides a bridge which is provided with the combined capping beam.
Optionally, at least one side of the steel box girder is connected with a supporting steel girder, and a concrete layer is arranged on the supporting steel 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 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 plates are arranged in the inner cavities of the steel box girders and are cambered plates, the length directions of the shaping plates are parallel to the length directions of the steel box girders, the concave surfaces of the shaping plates are arranged downwards, the peripheries of the shaping plates are abutted to the inner cavities of the steel box girders, and concrete is poured between the convex surfaces of the shaping plates and the steel box girders; 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 carrying out combination bent cap construction, will have the steel box girder hoist and mount of stereotype board to treating the mounted position, pour the concrete in to the steel box girder through the mouth of pouring of locating the steel box girder top for the concrete layer that solidifies the shaping in the steel box girder is along steel box girder length direction, and both ends are thicker, and the centre is watered thinly, and makes concrete layer concentrate on the top position of steel box girder. The arrangement of the partition plate can increase the shearing resistance of the steel box girder. When the bridge is used, the two ends of the bottom of the steel box girder are pressed and the middle of the bottom of the steel box girder is pulled along the length direction of the steel box girder. Through the concrete shaping with in the steel box girder for the concrete pressurized of both sides, middle steel box girder is drawn, can make steel box girder and concrete effectively exert the function of respective tensile and resistance to compression, reduces the whole volume of bent cap simultaneously, alleviates the weight of bent cap, makes the hoist and mount of steel box girder and pouring of concrete more convenient. Through in directly pouring the steel box girder with the concrete, need not to build extra template when pouring the concrete for the bent cap construction is simpler.
2. The combined bent cap provided by the invention is provided with a plurality of clapboards which are arranged in parallel and distributed at intervals along the length direction of the steel box girder. Through set up polylith baffle at the steel box girder internal interval, increase steel box girder's ability of shearing for can guarantee to provide great structure bearing capacity when steel box girder volume is less.
3. The inner wall of the steel box girder and the shaping plate of the combined capping beam are connected with shear bolts. Through setting up the shear bolt to strengthen the stability of being connected between concrete and the steel box girder inner wall, the joint strength between increase concrete and the steel box girder increases the inside shear resistance of 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 used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of an internal structure of a steel box girder according to 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 connection of a steel box girder and a support steel girder provided in an embodiment of the present invention.
Fig. 4 is a schematic structural view of the connection between the support steel plate and the support steel beam according to the embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a bridge provided in an embodiment of the present invention.
Description of reference numerals: 1. a steel box girder; 2. shaping plates; 3. pouring a mouth; 4. a partition plate; 5. a shear bolt; 6. extending out of the bracket; 7. supporting the steel beam; 8. a reinforcing plug; 9. and (4) prefabricating a concrete slab.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being 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 "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 otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
Fig. 1 to 5 show that in the present embodiment, a combined bent cap is provided, which includes: the steel box girder comprises a steel box girder 1, a shaping plate 2 and 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 into an inner cavity of the steel box girder 1. The template 2 is installed in 1 intracavity of steel box girder, and the template 2 is the bow-shaped board, and the length direction of template 2 is parallel with the length direction of steel box girder 1, and the concave surface of template 2 sets up down, and template 2 all around all with 1 inner chamber butt of steel box girder, concrete placement between the convex surface of template 2 and steel box girder 1.
The inner cavity of the steel box girder 1 is internally connected with a plurality of clapboards 4. The partition plates 4 are arranged perpendicular to the length direction of the steel box girder 1. A plurality of baffles 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 plate 2 is arranged on two sides of a partition plate 4 at the middle position in the steel box girder 1, and the shaping plate 2 is symmetrically arranged on the partition plate 4 at the middle position in the steel box girder 1. Through set up a plurality of baffles 4 in the inner chamber of steel box girder 1, increase steel box girder 1's ability of shearing, guarantee that steel box girder 1 can provide great bearing capacity when reducing 1 volumes of steel box girder. At the top of steel box girder 1, pour mouthful 3 and be equipped with a plurality ofly, a plurality of mouthful 3 of pouring are located respectively between adjacent baffle 4. The inner wall of the steel box girder 1 and the shaping plate 2 are both connected with a shear bolt 5. As shown in fig. 3, in order to facilitate external connection of other steel structures or concrete structures to the steel box girder 1, a plurality of outriggers 6 for connecting external steel girders are connected to one side of the steel box girder 1, and the outriggers 6 extend in a horizontal direction.
When the combined capping beam is constructed, the steel box beam 1, the shaping plate 2, the partition plate 4 and the shear bolt 5 inside the steel box beam 1 are prefabricated and molded in a factory. The steel box girder 1 with the setting plate 2 is hoisted to a position to be installed, concrete is poured into the steel box girder 1 through a pouring port 3 arranged at the top of the steel box girder 1, so that the concrete layer solidified and formed in the steel box girder 1 is thick at two ends and thin in the middle along the length direction of the steel box girder 1, 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 of the steel box girder 1 is pulled along the length direction of the steel box girder 1. Through the concrete shaping with in the steel box girder 1 for the concrete pressurized of both sides, middle steel box girder 1 is drawn, can make steel box girder 1 and concrete effectively exert the function of respective tensile and resistance to compression, reduces the whole volume of bent cap simultaneously, alleviates the weight of bent cap, makes the hoist and mount of steel box girder 1, the transportation and the pouring of concrete more convenient. Through in directly pouring the steel box girder 1 with the concrete, need not to build extra template when pouring the concrete, tie point between the steel construction is less when the bent cap site operation, and it is more convenient to connect for the bent cap construction is simpler.
Example 2
Fig. 3 to 5 show a bridge provided by this embodiment, which has the combined capping beam described in embodiment 1.
One side of the steel box girder 1 on the combined bent cap 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 the outwards extending bracket 6 through a connecting steel plate, and a concrete layer is arranged on the supporting steel girder 7. Install supporting steel plate between supporting steel roof beam 7 and the concrete layer, welded connection has a plurality of reinforcing bolt 8 on the supporting steel plate. The concrete layer may be a precast concrete slab 9 or a cast-in-place concrete layer. In order to accelerate the on-site construction progress and shorten the on-site construction period, the precast concrete slab 9 is selected as the concrete layer in the embodiment. In order to increase the support strength of the capping beam to the deck, a plurality of combined capping beams as described in example 1 were connected to one end of the bridge.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. A composite capping beam, comprising:
the steel box girder comprises a steel box girder (1), wherein a pouring opening (3) is formed in the top of the steel box girder (1), and concrete is poured in an 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 an arched 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 the 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. The composite capping beam as claimed in claim 1, wherein the partition plates (4) are provided in plurality, and the plurality of partition plates (4) are all arranged in parallel and are distributed at intervals along the length direction of the steel box beam (1).
3. The composite bent cap according to claim 1, characterized in that a plurality of pouring openings (3) are provided, and a plurality of pouring openings (3) are respectively provided between adjacent partition plates (4).
4. A composite capping beam according to any one of claims 1 to 3, wherein shear bolts (5) are connected to the inner wall of the steel box girder (1) and the sizing plate (2).
5. A composite capping beam according to any one of claims 1 to 4, characterised in that an overhanging corbel (6) is attached to at least one side of the steel box girder (1).
6. A bridge, characterized by a composite capping beam according to any one of claims 1 to 5.
7. The bridge according to claim 6, characterized in that at least one side of the steel box girder (1) is connected with a supporting steel girder (7), and a concrete layer is arranged on the supporting steel girder (7).
8. A bridge according to claim 7, characterized in that a supporting steel plate is mounted between the supporting steel beam (7) and the concrete layer, and a plurality of reinforcing studs (8) are connected to the supporting steel plate.
9. Bridge according to claim 7 or 8, 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 capping beam and bridge with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110183046.1A CN112746554B (en) | 2021-02-08 | 2021-02-08 | Combined capping beam and bridge with same |
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| Publication Number | Publication Date |
|---|---|
| CN112746554A true CN112746554A (en) | 2021-05-04 |
| CN112746554B 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 capping beam and bridge with same |
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| Country | Link |
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| CN (1) | CN112746554B (en) |
Cited By (2)
| 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 |
| CN114892870A (en) * | 2022-06-14 | 2022-08-12 | 河南黄国钢结构有限公司 | Steel and concrete assembled structure and forming device thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101338608A (en) * | 2008-08-29 | 2009-01-07 | 清华大学 | Steel-concrete combined conversion joist |
| 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 |
| CN108457182A (en) * | 2018-05-18 | 2018-08-28 | 中山职业技术学院 | A kind of cross bridge floor board and its construction technology |
| 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 |
| CN111764249A (en) * | 2020-07-02 | 2020-10-13 | 中铁大桥科学研究院有限公司 | Combined beam structure of UHPC (ultra high performance polycarbonate) honeycomb precast slab-steel box girder and construction method |
| CN111910500A (en) * | 2020-02-21 | 2020-11-10 | 清华大学 | Anti-overturning combined bridge and construction method |
| 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 |
| CN214993002U (en) * | 2021-02-08 | 2021-12-03 | 清华大学 | Combined capping beam and bridge with same |
-
2021
- 2021-02-08 CN CN202110183046.1A patent/CN112746554B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338608A (en) * | 2008-08-29 | 2009-01-07 | 清华大学 | Steel-concrete combined conversion joist |
| 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 |
| CN108457182A (en) * | 2018-05-18 | 2018-08-28 | 中山职业技术学院 | A kind of cross bridge floor board and its construction technology |
| 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 |
| 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 |
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| CN111764249A (en) * | 2020-07-02 | 2020-10-13 | 中铁大桥科学研究院有限公司 | Combined beam structure of UHPC (ultra high performance polycarbonate) honeycomb precast slab-steel box girder and construction method |
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Cited By (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 |
| CN114892870A (en) * | 2022-06-14 | 2022-08-12 | 河南黄国钢结构有限公司 | Steel and concrete assembled structure and forming device thereof |
| 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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| Publication number | Publication date |
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| CN112746554B (en) | 2024-09-10 |
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