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A platform for research: civil engineering, architecture and urbanism
Two-way cantilever erection construction process for Warren type large-span steel truss beam bridge
The invention relates to the technical field of bridge construction, in particular to a two-way cantilever erection construction process for a Warren type large-span steel truss beam. An integral balance stress structure is formed by a two-way balance support on the lower portion of a steel beam and a main pier, sliding walking full-rotation bridge deck mast cranes and the steel truss beam synchronously advance to be spliced in a cantilever mode, a reasonable rod piece erecting sequence is adopted, and synchronous and two-way cantilever erecting of the steel beam is achieved to a closure gap.The problem that support erection auxiliary construction cannot be carried out in steel beam erection in a special region environment or erection cost investment is too large is solved.
本发明涉及桥梁建设技术领域，具体为一种华伦式大跨径钢桁梁双向悬臂架设施工工艺。本发明通过利用钢梁下部双向平衡支架与主墩形成整体平衡受力结构，利用滑动走行全回转桥面桅杆式起重机与钢桁梁同步前进悬臂拼装，采取合理的杆件架设顺序，实现钢梁同步、双向悬臂架设直至合龙口，解决了特殊地域环境下钢梁架设无法进行支架搭设辅助施工或搭设成本投入过大的问题。
Two-way cantilever erection construction process for Warren type large-span steel truss beam bridge
The invention relates to the technical field of bridge construction, in particular to a two-way cantilever erection construction process for a Warren type large-span steel truss beam. An integral balance stress structure is formed by a two-way balance support on the lower portion of a steel beam and a main pier, sliding walking full-rotation bridge deck mast cranes and the steel truss beam synchronously advance to be spliced in a cantilever mode, a reasonable rod piece erecting sequence is adopted, and synchronous and two-way cantilever erecting of the steel beam is achieved to a closure gap.The problem that support erection auxiliary construction cannot be carried out in steel beam erection in a special region environment or erection cost investment is too large is solved.
本发明涉及桥梁建设技术领域，具体为一种华伦式大跨径钢桁梁双向悬臂架设施工工艺。本发明通过利用钢梁下部双向平衡支架与主墩形成整体平衡受力结构，利用滑动走行全回转桥面桅杆式起重机与钢桁梁同步前进悬臂拼装，采取合理的杆件架设顺序，实现钢梁同步、双向悬臂架设直至合龙口，解决了特殊地域环境下钢梁架设无法进行支架搭设辅助施工或搭设成本投入过大的问题。
Two-way cantilever erection construction process for Warren type large-span steel truss beam bridge
一种华伦式大跨径钢桁梁桥梁双向悬臂架设施工工艺
FU GUOPING (author) / WU HONGQUAN (author) / LI YAN (author) / WANG ZHENQIANG (author) / ZHANG XINQIANG (author) / ZHENG HUI (author) / CHEN XIAOLIN (author)
2020-12-18
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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