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A platform for research: civil engineering, architecture and urbanism
Steel girder erection method of steel truss girder bridge
The invention relates to the technical field of bridge construction, and discloses a steel girder erection method of a steel truss girder bridge, which comprises the following steps: installing a pushing system on a pushing auxiliary bracket; mounting a temporary support on each truss on the assembly bracket, and mounting a guide beam and a rear-end counterweight in a scattered assembly manner; a beam erecting crane is mounted on the guide beam; the head section is installed and pushed; the subsequent internode units are circularly hoisted; after the auxiliary pier side bracket is arranged on the guide beam, the guide beam is dismantled step by step; steel beams are synchronously and circularly constructed, side-span steel beam pushing erection is completed, and the whole bridge falls to the designed elevation; a main span steel beam is erected on the midspan one-way cantilever through a beam erecting crane, and cable hanging and tensioning are conducted step by step; and the girder erection crane installs the closure section to complete steel girder closure, and steel girder erection is completed. According to the technical scheme, the quality controllability and high efficiency of the large-section steel truss girder erection technology of the large-span steel truss girder cable-stayed bridge are ensured, the construction efficiency is improved, the installation quality is ensured, the safety risk is reduced, and the popularization prospect is good.
本发明涉及桥梁施工技术领域，公开了一种钢桁梁桥的钢梁架设方法，包括：安装顶推系统于顶推辅助支架；在拼装支架上每桁安装临时支撑，并散拼安装导梁及后端配重；在导梁上安装架梁吊机；安装并顶推首节段；循环吊装后续节间单元；导梁上辅助墩墩旁托架后，逐步拆除导梁；钢梁同步循环施工，完成边跨钢梁顶推架设，全桥落梁至设计标高；利用架梁吊机向跨中单向悬臂架设主跨钢梁，并逐步挂索张拉；架梁吊机安装合龙段完成钢梁合龙，完成钢梁架设。本申请的技术方案，确保了大跨度钢桁梁斜拉桥大节段钢桁梁架设技术的质量可控性及高效性，提高了施工工效、保证了安装质量、降低了安全风险，推广前景好。
Steel girder erection method of steel truss girder bridge
The invention relates to the technical field of bridge construction, and discloses a steel girder erection method of a steel truss girder bridge, which comprises the following steps: installing a pushing system on a pushing auxiliary bracket; mounting a temporary support on each truss on the assembly bracket, and mounting a guide beam and a rear-end counterweight in a scattered assembly manner; a beam erecting crane is mounted on the guide beam; the head section is installed and pushed; the subsequent internode units are circularly hoisted; after the auxiliary pier side bracket is arranged on the guide beam, the guide beam is dismantled step by step; steel beams are synchronously and circularly constructed, side-span steel beam pushing erection is completed, and the whole bridge falls to the designed elevation; a main span steel beam is erected on the midspan one-way cantilever through a beam erecting crane, and cable hanging and tensioning are conducted step by step; and the girder erection crane installs the closure section to complete steel girder closure, and steel girder erection is completed. According to the technical scheme, the quality controllability and high efficiency of the large-section steel truss girder erection technology of the large-span steel truss girder cable-stayed bridge are ensured, the construction efficiency is improved, the installation quality is ensured, the safety risk is reduced, and the popularization prospect is good.
本发明涉及桥梁施工技术领域，公开了一种钢桁梁桥的钢梁架设方法，包括：安装顶推系统于顶推辅助支架；在拼装支架上每桁安装临时支撑，并散拼安装导梁及后端配重；在导梁上安装架梁吊机；安装并顶推首节段；循环吊装后续节间单元；导梁上辅助墩墩旁托架后，逐步拆除导梁；钢梁同步循环施工，完成边跨钢梁顶推架设，全桥落梁至设计标高；利用架梁吊机向跨中单向悬臂架设主跨钢梁，并逐步挂索张拉；架梁吊机安装合龙段完成钢梁合龙，完成钢梁架设。本申请的技术方案，确保了大跨度钢桁梁斜拉桥大节段钢桁梁架设技术的质量可控性及高效性，提高了施工工效、保证了安装质量、降低了安全风险，推广前景好。
Steel girder erection method of steel truss girder bridge
一种钢桁梁桥的钢梁架设方法
ZOU KONGQING (author) / CAO HAN (author) / LIU YU (author) / LIANG CHAO (author) / FANG JI (author) / ZHANG JIANJIN (author) / LIU GUO (author) / DING SHIHONG (author) / LI MENGCHAO (author) / ZHU JUN (author)
2024-05-14
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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