CN214573273U - Joint structure of integral abutment and steel beam - Google Patents
Joint structure of integral abutment and steel beam Download PDFInfo
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- CN214573273U CN214573273U CN202120062217.0U CN202120062217U CN214573273U CN 214573273 U CN214573273 U CN 214573273U CN 202120062217 U CN202120062217 U CN 202120062217U CN 214573273 U CN214573273 U CN 214573273U
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- abutment
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Abstract
The utility model discloses a joint portion structure of integral abutment and girder steel, it includes abutment and girder steel, the one end of girder steel inlay admittedly in the abutment, the girder steel adopts shaped steel, including last pterygoid lamina, lower pterygoid lamina and the web of connecting upper and lower pterygoid lamina, be equipped with the bearing plate of connecting upper and lower pterygoid lamina and web on the interface of abutment and girder steel, the interface that abutment and girder steel were located to bearing plate parallel subsides is perpendicular with the web. It has the following advantages: the local tensile stress of the concrete is reduced, the stress performance of the steel-concrete combination part is enhanced, and the site construction efficiency is improved.
Description
Technical Field
The utility model relates to a bridge engineering field especially relates to a joint portion structure of integral abutment and girder steel.
Background
The integral type steel-concrete composite bridge has obvious advantages in small and medium-span bridges compared with simply supported bridges, and the advantages of the integral type abutment and the steel-concrete composite bridge are combined to form the steel-concrete integral type abutment bridge.
The bridge joint is a key part of the integral steel-concrete composite bridge, but the abutment-steel beam joint of the existing integral steel-concrete composite bridge is often provided with a welding nail connecting piece and a perforated plate connecting piece, a large number of connecting pieces need to be arranged in a limited space, the structure is complex, the pouring quality of concrete is influenced, the stress is not clear, and the economic benefit is easily reduced.
Therefore, there is a need for a joint structure of an integral abutment and steel beam that can reduce local tensile stress of concrete, enhance the stress performance of a steel-concrete joint, and improve the efficiency of on-site construction.
SUMMERY OF THE UTILITY MODEL
The utility model provides a joint portion structure of integral abutment and girder steel, it has overcome in the background art the not enough of prior art.
The utility model provides a technical scheme that its technical problem adopted is:
the integral type bridge abutment and steel beam joint structure comprises a bridge abutment and a steel beam, wherein one end of the steel beam is fixedly embedded in the bridge abutment, the steel beam is made of profile steel and comprises an upper wing plate, a lower wing plate and a web plate for connecting the upper wing plate and the lower wing plate, a bearing plate for connecting the upper wing plate, the lower wing plate and the web plate is arranged on an interface of the bridge abutment and the steel beam, and the bearing plate is parallelly attached to an interface of the bridge abutment and the steel beam and is perpendicular to the web plate.
In one embodiment: and one end of the web plate embedded in the abutment is provided with a U-shaped opening for the steel bar in the abutment to pass through.
In one embodiment: and a plurality of welding nails are arranged on the plate sections of the upper wing plate and the lower wing plate which are fixedly embedded in the abutment.
In one embodiment: the welding nails on the upper wing plate and the lower wing plate are arranged to be vertical to the upper wing plate and the lower wing plate in the same direction.
In one embodiment: one side of the bearing plate facing the abutment is provided with a plurality of welding nails embedded into the abutment.
In one embodiment: the web passes through the symmetric center of the bearing plate, and the welding nails are distributed on two sides of the symmetric center of the bearing plate.
In one embodiment: the steel beam is provided with a plurality of stiffening ribs which are connected with the upper wing plate, the lower wing plate and the web plate and are vertical to the web plate.
In one embodiment: the connection is welding.
Compared with the background technology, the technical scheme has the following advantages:
1. reducing the local tensile stress of the concrete; the end wall plates which are connected with the upper wing plate and the lower wing plate and are vertical to the web plate are arranged on the interface of the bridge abutment and the steel beam, so that the local tensile stress condition of the concrete can be improved.
2. The stress performance of the steel-concrete combination part is enhanced, and the stress is clear; the bearing plate is equivalent to the effect of stiffening rib, avoids girder steel to inlay the tip and receive the pressure unstability, and the welding nail on upper and lower flange board can form the couple of force, improves the bending resistance of joint portion, and the welding nail on the end wall board can improve the shearing resistance of joint portion.
3. The site construction efficiency and the economic benefit are improved; the web plate at one end of the steel beam embedded is provided with the U-shaped opening, so that the steel bars inside the abutment can conveniently pass through the opening, the size of the web plate is reduced, and the economic benefit and the pouring quality of concrete are improved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is one of the schematic views of the joint structure according to the present embodiment.
Fig. 2 is a second schematic view of the structure of the joint portion according to the present embodiment.
Figure 3 is an elevation view of the steel beam structure of the present embodiment.
Fig. 4 is a side view of the joint structure according to the present embodiment.
Detailed Description
Referring to fig. 1 to 4, the integral abutment and steel beam joint structure includes an abutment 1 and a steel beam 2, one end of the steel beam 2 is embedded and fixed in the abutment 1, the steel beam 2 is made of section steel and includes an upper wing plate 3, a lower wing plate 4 and a web plate 7 connecting (specifically, welding) the upper wing plate 3 and the lower wing plate 4, the web plate 7 is perpendicular to the upper wing plate 3 and the lower wing plate 4 and is located on a longitudinal symmetrical central plane of the upper wing plate 3 and the lower wing plate 4, and the upper wing plate 3, the lower wing plate 4 and the web plate 7 form an i-shaped steel structure with an i-shaped cross section.
Be equipped with the pressure-bearing plate 5 who is connected (specifically for the welding) upper and lower pterygoid lamina 3, 4 and web 7 on the interface of abutment 1 and girder steel 2, the parallel subsides of pressure-bearing plate 5 are located the interface of abutment 1 and girder steel 2 and are perpendicular with web 7. One side of the bearing plate 5 facing the abutment 1 is provided with a plurality of welding nails 8 embedded into the abutment 1. In this embodiment, the web 7 passes through the symmetry center of the pressure-bearing plate 5, so that the pressure-bearing plate 5 is disposed on two sides of the web 7 in half, and the welding nails 8 on the pressure-bearing plate are disposed on two sides of the symmetry center of the pressure-bearing plate 5 and are equal in number. The steel beam 2 is provided with a plurality of stiffening ribs 6 which are connected (specifically welded) with an upper wing plate 3, a lower wing plate 4 and a web plate 7 and are vertical to the web plate 7, and specifically, the stiffening ribs 6 are arranged on the non-embedded plate section of the steel beam 2.
Through the setting of bearing plate 5 to establish several rows of weld nail 8 in one side towards abutment 1, can reduce the local tensile stress of concrete, improve the local compressive capacity of girder steel 2, form the connection performance and the shear behavior that the weld nail connecting piece improved concrete abutment 1 and girder steel 2 simultaneously through weld nail 8. In addition, the steel beam 2 is connected with a stiffening rib 6, so that the local pressure resistance of the steel beam 2 is improved.
One end of the web 7 embedded in the abutment 1 is provided with a U-shaped opening for the steel bar in the abutment 1 to pass through. And the upper wing plate 3 and the lower wing plate 4 are both provided with a plurality of welding nails 8 on the plate sections embedded in the abutment 1. In this embodiment, the welding nails 8 on the upper and lower wing plates 3, 4 are arranged perpendicular to the upper and lower wing plates 3, 4 in the same direction. A plurality of rows of welding nails 8 are arranged on the embedded plate sections of the upper wing plate 3 and the lower wing plate 4 to form a welding nail connecting piece, so that the bending resistance of the joint part is improved.
The integral abutment and steel beam combined part structure reduces local tensile stress of concrete, strengthens the stress performance of a steel-concrete combined part, improves the field construction efficiency, does not need to arrange a large number of connecting pieces, and avoids the problem that the pouring quality of the concrete is influenced due to too complicated structure of the combined part.
The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited by this description, and all equivalent changes and modifications made within the scope and the specification of the present invention should be covered by the present invention.
Claims (8)
1. Integral abutment and combination portion structure of girder steel, its characterized in that: the bridge comprises a bridge abutment and a steel beam, wherein one end of the steel beam is fixedly embedded in the bridge abutment, the steel beam is made of profile steel and comprises an upper wing plate, a lower wing plate and a web plate for connecting the upper wing plate and the lower wing plate, a bearing plate for connecting the upper wing plate, the lower wing plate and the web plate is arranged on an interface of the bridge abutment and the steel beam, and the bearing plate is parallelly attached to an interface of the bridge abutment and the steel beam and is perpendicular to the web plate.
2. The integral abutment-steel beam joint construction as set forth in claim 1, wherein: and one end of the web plate embedded in the abutment is provided with a U-shaped opening for the steel bar in the abutment to pass through.
3. The integral abutment-steel beam joint construction as set forth in claim 1, wherein: and a plurality of welding nails are arranged on the plate sections of the upper wing plate and the lower wing plate which are fixedly embedded in the abutment.
4. The integral abutment-steel beam joint construction as set forth in claim 3, wherein: the welding nails on the upper wing plate and the lower wing plate are arranged to be vertical to the upper wing plate and the lower wing plate in the same direction.
5. The integral abutment-steel beam joint construction as set forth in claim 1, wherein: one side of the bearing plate facing the abutment is provided with a plurality of welding nails embedded into the abutment.
6. The integral abutment-steel beam joint construction as set forth in claim 5, wherein: the web passes through the symmetric center of the bearing plate, and the welding nails are distributed on two sides of the symmetric center of the bearing plate.
7. The integral abutment-steel beam joint construction as set forth in claim 1, wherein: the steel beam is provided with a plurality of stiffening ribs which are connected with the upper wing plate, the lower wing plate and the web plate and are vertical to the web plate.
8. The integral type abutment-steel beam joint construction as set forth in claim 1 or 7, wherein: the connection is welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120062217.0U CN214573273U (en) | 2021-01-11 | 2021-01-11 | Joint structure of integral abutment and steel beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120062217.0U CN214573273U (en) | 2021-01-11 | 2021-01-11 | Joint structure of integral abutment and steel beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214573273U true CN214573273U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120062217.0U Active CN214573273U (en) | 2021-01-11 | 2021-01-11 | Joint structure of integral abutment and steel beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214573273U (en) |
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2021
- 2021-01-11 CN CN202120062217.0U patent/CN214573273U/en active Active
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