CN211596342U - Plug welding connection structure for end beam seal head plate of steel box girder bridge - Google Patents
Plug welding connection structure for end beam seal head plate of steel box girder bridge Download PDFInfo
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- CN211596342U CN211596342U CN201922422126.9U CN201922422126U CN211596342U CN 211596342 U CN211596342 U CN 211596342U CN 201922422126 U CN201922422126 U CN 201922422126U CN 211596342 U CN211596342 U CN 211596342U
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Abstract
The utility model discloses a plug welding connection structure of a bridge end beam end sealing plate of a steel box girder, wherein the steel box girder is enclosed by a bottom plate, a top plate, side plates at two sides and the end sealing plate, and a middle web plate and a support baffle plate which are perpendicular to and connected with the bottom plate, the top plate and the end sealing plate are arranged in the steel box girder; plug welding backing plates are arranged at the positions where the end sealing plate is connected with the middle web plate and the support clapboard to form a boss structure; each boss structure is provided with a plurality of plug welding holes along the corresponding edges of the middle web plate and the support clapboard. The middle web plate and the support partition plate are fixedly connected with the head plate through plug welding of the corresponding boss structures. The utility model discloses an use and can promote the joint strength between end plate and well web, the support baffle, and convenient operation, assurance engineering quality that can be tangible.
Description
Technical Field
The utility model relates to a bridge end steel box girder construction technical field, in particular to steel box girder bridge end crossbeam head plate plug welding connection structure.
Background
With the rapid development of urban construction, urban viaducts and large interchange overpasses are pulled out of the ground like spring shoots after rain, and accordingly, steel structure bridges are widely used. The steel structure bridge has stronger adaptability for reducing the interference to the traffic and the small-radius and large-span structure of the interchange at the crossing current situation intersection. For steel structure bridges, the welding quality is the key to influence the quality of the finished bridges.
In the prior art, the welding design of the end beam head plate of the bridge end of the steel box girder also has a place which needs to be improved. Because the end beam is stressed complexly, the end beam can be structurally reinforced during design, and a support baffle, a stiffening rib and the like are additionally arranged. The manufacturing procedure generally comprises the steps of firstly welding the web plate, the support clapboard and the stiffening rib, and then plugging the head plate.
However, the end plate, the side web plate and the top bottom plate adopt groove fillet welds, and the manhole welding is set up with the adoption of the middle web plate and the support partition plate, because the space is narrow and small, the welding difficulty is great, the welding quality is difficult to guarantee, and some even welding is not carried out, so that the end beam is difficult to form an effective closed box chamber, and the stress on the end beam is unfavorable.
Therefore, how to improve the connection strength between the head plate and the middle web and the support partition plate becomes a technical problem which needs to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defect of prior art, the utility model provides a steel box girder bridge end crossbeam seals head board plug welding connection structure, the purpose of realization promotes the joint strength between head board and well web, the support baffle, and convenient operation, assurance engineering quality that can be tangible.
In order to realize the purpose, the utility model discloses a steel box girder bridge end crossbeam end plate plug welds connection structure, the steel box girder is enclosed by bottom plate, roof, both sides curb plate and end plate, be equipped with in the steel box girder with the bottom plate the roof with end plate perpendicular and middle web and the support baffle that connect.
Plug welding backing plates are arranged at the positions where the end sealing plate is connected with the middle web plate and the support clapboard to form a boss structure;
each boss structure is provided with a plurality of plug welding holes along the corresponding edges of the middle web plate and the support clapboard.
The middle web plate and the support partition plate are fixedly connected with the head plate through plug welding of the corresponding boss structures.
Preferably, the middle web plate is vertically arranged in the middle of the steel box girder.
Preferably, the support clapboard is arranged in the steel box girder at the center corresponding to each bridge support.
The utility model has the advantages that:
the utility model discloses an use and can promote the joint strength between end plate and well web, the support baffle, and convenient operation, assurance engineering quality that can be tangible.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 shows a schematic cross-sectional structure diagram of an embodiment of the present invention.
Fig. 2 shows a schematic elevation structure diagram of an embodiment of the present invention.
Fig. 3 is a schematic diagram illustrating a partially enlarged structure of a plug weld hole according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram illustrating a connection position between the head plate and the middle web or the support plate according to an embodiment of the present invention.
Fig. 5 shows a schematic view of a longitudinal cross-sectional structure in an embodiment of the present invention.
Detailed Description
Examples
As shown in fig. 1 to 5, the end beam plug welding connection structure of the steel box girder comprises a bottom plate 1, a top plate 2, two side plates 3 and a head plate 4, wherein the steel box girder is enclosed by the bottom plate 1, the top plate 2 and the head plate 4, and a middle web plate 5 and a support baffle plate 6 which are perpendicular to and connected with the bottom plate 1, the top plate 2 and the head plate 4 are arranged in the steel box girder.
Wherein, a plug welding backing plate 7 is arranged at the connecting position of the head plate 4, the middle web plate 5 and the support clapboard 6 to form a structure with a boss;
each boss structure is provided with a plurality of plug welding holes 8 along the edges of the corresponding middle web 5 and the support baffle 6.
The middle web plate 5 and the support baffle plate 6 are fixedly connected with the head plate 4 by plug welding of corresponding boss structures.
The principle of the utility model lies in: by utilizing the welding principle of a superimposed plate in the plug welding process, a plug welding backing plate 7 is additionally arranged on the surfaces to be welded of the middle web 5 and the support clapboard 6 so as to increase the welding area.
The plug welding backing plate 7, the middle web plate 5 and the support clapboard 6 are welded to form a composite plate with a boss structure.
And plug welding holes 8 are formed in the positions, corresponding to the middle web 5 and the support partition plate 6, of the composite plate with the boss structure, the plug welding holes 8 are welded with the head plate 4 and the plug welding backing plate 7, and the plug welding holes 8 are filled. The head plate 4 is thus welded indirectly to the central web 5 and the support partitions 6, so that the steel box girder forms an effectively closed box chamber.
In some embodiments, the central web 5 is mainly vertically arranged in the middle of the steel box girder.
In some embodiments, a support clapboard 6 is arranged in the steel box girder corresponding to the central position of each bridge support.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (3)
1. The plug welding connection structure for the end plate of the beam at the bridge end of the steel box girder is characterized in that the steel box girder is enclosed by a bottom plate (1), a top plate (2), side plates (3) at two sides and an end plate (4), and a middle web plate (5) and a support baffle plate (6) which are perpendicular to and connected with the bottom plate (1), the top plate (2) and the end plate (4) are arranged in the steel box girder; the method is characterized in that:
a plug welding backing plate (7) is arranged at the position where the end sealing plate (4) is connected with the central web plate (5) and the support clapboard (6) to form a structure with a boss;
each boss structure is provided with a plurality of plug welding holes (8) along the edges of the corresponding middle web plate (5) and the corresponding support clapboard (6);
the middle web plate (5) and the support clapboard (6) are fixedly connected with the head plate (4) by plug welding of the corresponding boss structures.
2. The plug welding connection structure for the end beam and the head plate of the bridge end of the steel box girder according to claim 1, wherein the central web (5) is vertically arranged in the middle of the steel box girder.
3. The plug welding connection structure for the end seal plates of the bridge end beams of the steel box girder according to claim 1, wherein a support clapboard (6) is arranged in the steel box girder at the central position corresponding to each bridge support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922422126.9U CN211596342U (en) | 2019-12-30 | 2019-12-30 | Plug welding connection structure for end beam seal head plate of steel box girder bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922422126.9U CN211596342U (en) | 2019-12-30 | 2019-12-30 | Plug welding connection structure for end beam seal head plate of steel box girder bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211596342U true CN211596342U (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922422126.9U Active CN211596342U (en) | 2019-12-30 | 2019-12-30 | Plug welding connection structure for end beam seal head plate of steel box girder bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211596342U (en) |
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2019
- 2019-12-30 CN CN201922422126.9U patent/CN211596342U/en active Active
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