A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Large-span box girder prefabricating, assembling and widening structure and construction method thereof
The invention relates to a large-span box girder prefabricating, assembling and widening structure and a construction method thereof.A prefabricated truss (3) is hoisted between a left box girder (1) and a right box girder (2) of an old bridge, and a wet joint (4) and a wet joint (5) are arranged to connect the prefabricated truss (3) and the box girders on the two sides to form an integral transverse stress system, so that the deflection deformation difference of the box girders on the two sides of a widening box girder bridge is effectively reduced; and the stress integrity of the widening structure is improved. According to the structure, the stress integrity of the widening structure is improved, the deflection deformation difference of the box girders on the two sides is effectively reduced, meanwhile, the construction period is effectively shortened, and the influence on normal passing of a line is reduced.
本发明涉及一种大跨径箱梁预制拼装拓宽结构及其施工方法，通过在旧桥左侧箱梁(1)、右侧箱梁(2)间吊装预制桁架(3)，设置湿接缝(4)、湿接头(5)将预制桁架(3)与两侧箱梁连接成具有整体性的横向受力体系，有效降低拼宽箱梁桥两侧箱梁挠曲变形差，提高拼宽结构受力整体性。该结构提高了拼宽结构受力整体性，有效减小两侧箱梁挠曲变形差，同时有效缩减建设工期，减小对线路正常通行的影响。
Large-span box girder prefabricating, assembling and widening structure and construction method thereof
The invention relates to a large-span box girder prefabricating, assembling and widening structure and a construction method thereof.A prefabricated truss (3) is hoisted between a left box girder (1) and a right box girder (2) of an old bridge, and a wet joint (4) and a wet joint (5) are arranged to connect the prefabricated truss (3) and the box girders on the two sides to form an integral transverse stress system, so that the deflection deformation difference of the box girders on the two sides of a widening box girder bridge is effectively reduced; and the stress integrity of the widening structure is improved. According to the structure, the stress integrity of the widening structure is improved, the deflection deformation difference of the box girders on the two sides is effectively reduced, meanwhile, the construction period is effectively shortened, and the influence on normal passing of a line is reduced.
本发明涉及一种大跨径箱梁预制拼装拓宽结构及其施工方法，通过在旧桥左侧箱梁(1)、右侧箱梁(2)间吊装预制桁架(3)，设置湿接缝(4)、湿接头(5)将预制桁架(3)与两侧箱梁连接成具有整体性的横向受力体系，有效降低拼宽箱梁桥两侧箱梁挠曲变形差，提高拼宽结构受力整体性。该结构提高了拼宽结构受力整体性，有效减小两侧箱梁挠曲变形差，同时有效缩减建设工期，减小对线路正常通行的影响。
Large-span box girder prefabricating, assembling and widening structure and construction method thereof
一种大跨径箱梁预制拼装拓宽结构及其施工方法
ZHONG CHUNYAO (author) / ZHENG NAN (author) / XIA JI (author) / WEN JIANDONG (author) / LI YANGFAN (author) / YANG KAI (author) / SHI XUEFEI (author) / SONG JUN (author) / ZHU CHAOYU (author)
2024-04-05
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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