CN219637662U - Steel truss web-concrete composite beam - Google Patents
Steel truss web-concrete composite beam Download PDFInfo
- Publication number
- CN219637662U CN219637662U CN202320244616.8U CN202320244616U CN219637662U CN 219637662 U CN219637662 U CN 219637662U CN 202320244616 U CN202320244616 U CN 202320244616U CN 219637662 U CN219637662 U CN 219637662U
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- steel
- concrete
- web
- concrete composite
- plate
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 124
- 239000010959 steel Substances 0.000 title claims abstract description 124
- 239000004567 concrete Substances 0.000 title claims abstract description 54
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 230000002787 reinforcement Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- Rod-Shaped Construction Members (AREA)
Abstract
The utility model relates to a steel truss web-concrete composite beam which comprises a concrete top plate, wherein two sides of the bottom of the concrete top plate are respectively connected with a plurality of steel cover boxes, steel sleeves are fixedly connected inside the steel cover boxes, steel web members penetrate through the steel sleeves, the bottom of each steel web member is connected with a concrete bottom plate, and reinforcing members are fixedly connected to the bottom of each concrete bottom plate. The utility model has stable structure and is more wind-resistant; the utility model can improve the shear bearing capacity and the bending resistance of the bridge, and is not easy to deform; and the construction efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of bridge engineering, in particular to a steel truss web-concrete composite beam.
Background
The steel-concrete combined bridge is a bridge structural form which effectively connects a steel structure part and a concrete part by means of connecting pieces so as to jointly bear force. The structure not only fully plays the material characteristics of concrete and steel, but also improves the stress performance of the structure. Compared with reinforced concrete beams, the steel-concrete combined bridge has the characteristics of light dead weight, good ductility, high construction efficiency and the like. Compared with pure steel beams, the steel-concrete combined bridge has the characteristics of small steel consumption, high bending rigidity and lateral rigidity, good overall stability and the like.
The steel truss web-concrete composite beam is a novel bridge structure, and steel pipes are adopted to form trusses to serve as web members to replace the traditional concrete web, so that the problem that the traditional concrete box girder web is easy to crack is effectively solved; and reduces the dead weight of the box girder. The main problem of the existing steel truss web-concrete composite beam is that stress concentration is easily caused by the joint connection of web members and concrete top and bottom plates, and the stress synergy unbalance of the joint connection of the top and bottom plates and the web members.
Disclosure of Invention
The utility model aims to solve the defects of the prior art and provides a steel truss web-concrete composite beam.
The utility model adopts the following technical scheme to realize the aim: the steel truss web-concrete composite beam comprises a concrete top plate, wherein two sides of the bottom of the concrete top plate are respectively connected with a plurality of steel cover boxes, steel sleeves are fixedly connected inside the steel cover boxes, steel web members penetrate through the steel sleeves, the bottom of each steel web member is connected with a concrete bottom plate, and reinforcing members are fixedly connected to the bottom of each concrete bottom plate.
Further, the steel sleeve comprises two hollow steel pipes, two arc-shaped steel plates are welded between the two hollow steel pipes, a steel plate with holes is welded on the outer side of the hollow steel pipe, and two bolt holes are formed in two ends of the steel plate with holes; the inner side of the hollow steel pipe is sleeved with a steel web member.
Further, the top of the steel cover box is provided with an oval hole, and the front side and the rear side of the steel cover box are respectively provided with a bolt hole corresponding to the positions of the bolt holes of the steel plates with holes.
Further, the reinforcement is the mountain style of calligraphy, and the vertical steel sheet in both ends all is equipped with the bolt hole, and the steel sheet in the middle is equipped with two rows of holes, and the steel sheet in the middle imbeds in the concrete bottom plate.
Further, the steel sleeve and the steel cover box are connected through upper bolts.
Further, the concrete floor and the reinforcement are connected by a lower bolt.
Further, the two hollow steel pipes are splayed.
The beneficial effects of the utility model are as follows: the utility model has stable structure and is more wind-resistant; the utility model can improve the shear bearing capacity and the bending resistance of the bridge, and is not easy to deform; and the construction efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic illustration of the connection of a steel web member and a steel sleeve according to the present utility model;
FIG. 3 is a schematic view of the steel lid box of the present utility model;
FIG. 4 is a schematic diagram of the structure of the fastener of the present utility model;
in the figure: 1-a concrete roof; 2-a concrete floor; 3-steel web members; 4-bolting; 5-steel sleeve; 6-a steel cover box; 7-reinforcement; 8-lower bolts; 51-hollow steel pipes; 52-arc-shaped steel plates; 53-perforated steel sheet;
the drawings in the present utility model are schematic, and their sizes do not represent actual dimensions;
the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1 to 4, a steel truss web-concrete composite beam comprises a concrete top plate 1, wherein two sides of the bottom of the concrete top plate 1 are respectively connected with a plurality of steel cover boxes 6, each steel cover box 6 is a steel hollow box with the thickness of 5mm, the top of each steel cover box 6 is provided with an oval hole, and the front side and the rear side of each steel cover box are provided with bolt holes corresponding to the positions of the bolt holes of a steel plate 53 with holes; the steel sleeve 5 is fixedly connected to the inside of the steel cover box 6 through the upper bolt 4, and the steel sleeve 5 and the steel cover box 6 can effectively improve the shearing bearing capacity and the deformation capacity of the joint of the steel web member 3; the steel sleeve 5 comprises two hollow steel pipes 51, the two hollow steel pipes 5 are splayed, the length of each hollow steel pipe 51 is 1/4 of the length of the steel web member 3, and the thickness is 5mm; two arc-shaped steel plates 52 are welded between the two hollow steel pipes 51, the arc-shaped steel plates 52 are formed by bending steel plates with the thickness of 10mm, the arc-shaped steel plates 52 have certain energy consumption capacity, the perforated steel plates 53 are welded on the outer sides of the hollow steel pipes 51, the thickness of the perforated steel plates 53 is 10mm, and two bolt holes are formed in two ends of each perforated steel plate 53; the steel web member 3 is sleeved on the inner side of the hollow steel pipe 51, so that the structure has good permeability, the wind resistance of the structure is improved, the steel web member 3 can be prefabricated for production, and the construction efficiency is high; the bottom of the steel web member 3 is connected with a concrete bottom plate 2, the bottom of the concrete bottom plate 2 is fixedly connected with a reinforcing member 7 through a lower bolt 8, the reinforcing member 7 is in a mountain shape, the bottom plate is 20mm thick, the vertical steel plates at two ends are 10mm thick and are all provided with bolt holes, the middle steel plate is 20mm thick and is provided with two rows of holes, the middle steel plate is embedded into the concrete bottom plate 2, the connection degree with the concrete bottom plate 2 can be improved by concrete in the holes, and the bending resistance of the structure is improved.
When the utility model is specifically constructed, binding reinforcing steel bars is firstly carried out; firstly, sleeving the steel sleeve 5 on the steel web member 3, fixing the steel web member 3 of the steel sleeve 5 in the steel cover box 6 according to a reserved round hole, and fixing an upper bolt 4 through bolt holes of the steel sleeve 5 and the steel cover box 6; installing a reinforcement 7 at the bottom; finally, pouring concrete to form a concrete top plate 1 and a concrete bottom plate 2, and filling the concrete into the steel web members 3; and forming the steel truss web-concrete composite beam.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the utility model, or applied directly to other applications without modification, within the scope of the utility model.
Claims (7)
1. The utility model provides a steel truss web-concrete composite beam, its characterized in that, including concrete roof (1), concrete roof (1) bottom both sides respectively are connected with a plurality of steel lid casees (6), and steel casing (5) are connected with to inside fixedly connected with of steel lid casees (6), and steel casing (5) are inside to run through has steel web member (3), and steel web member (3) bottom is connected with concrete bottom plate (2), concrete bottom plate (2) bottom fixedly connected with reinforcement (7).
2. The steel truss web-concrete composite beam according to claim 1, wherein the steel sleeve (5) comprises two hollow steel pipes (51), two arc-shaped steel plates (52) are welded between the two hollow steel pipes (51), a steel plate (53) with holes is welded on the outer side of the hollow steel pipe (51), and two bolt holes are formed in two ends of the steel plate (53); the inner side of the hollow steel pipe (51) is sleeved with a steel web member (3).
3. A steel truss web-concrete composite girder according to claim 2, characterized in that the top of the steel cap box (6) is provided with oval holes, and both the front and rear sides are provided with bolt holes corresponding to the bolt hole positions of the perforated steel plate (53).
4. A steel truss web-concrete composite girder according to claim 3, characterized in that the reinforcement (7) is in the shape of a letter "mountain", the vertical steel plates at both ends are provided with bolt holes, the middle steel plate is provided with two rows of holes, and the middle steel plate is embedded in the concrete floor (2).
5. A steel truss-concrete composite girder according to claim 4, characterized in that the steel bushings (5) and the steel cap boxes (6) are connected by means of upper bolts (4).
6. A steel truss-concrete composite girder according to claim 5, characterized in that the concrete floor (2) and the reinforcement (7) are connected by means of lower bolts (8).
7. A steel truss-concrete composite girder according to claim 6, characterized in that the two hollow steel pipes (51) are splayed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320244616.8U CN219637662U (en) | 2023-02-17 | 2023-02-17 | Steel truss web-concrete composite beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320244616.8U CN219637662U (en) | 2023-02-17 | 2023-02-17 | Steel truss web-concrete composite beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219637662U true CN219637662U (en) | 2023-09-05 |
Family
ID=87820801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320244616.8U Active CN219637662U (en) | 2023-02-17 | 2023-02-17 | Steel truss web-concrete composite beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219637662U (en) |
-
2023
- 2023-02-17 CN CN202320244616.8U patent/CN219637662U/en active Active
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