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A platform for research: civil engineering, architecture and urbanism
Ultra-small-height-span-ratio all-welded steel truss girder bridge construction method based on cantilever aerial work platform
The invention discloses a construction method of an ultra-small height-span ratio all-welded steel truss girder bridge based on a cantilever aerial work platform. The method includes the following steps that firstly, main bridge steel structure segments are divided; step 2, splicing the single main bridge steel structure section in-air spare parts; 3, platform forward-moving construction is conducted, specifically, a temporary anchoring system between the aerial work platform and the main bridge steel structure is removed, and platform forward-moving measure construction between the aerial work platform and the main bridge steel structure is conducted; step 4, translating the aerial work platform: constructing and pulling the aerial work platform to move forwards for a certain distance through a platform forward moving measure; 5, secondary anchoring of the aerial work platform; and sixthly, the second step to the fifth step are repeated till construction of the whole all-welded steel truss girder bridge is completed. Therefore, according to the novel aerial operation technology of the all-welded steel truss girder bridge, all the spare parts forming all the main bridge steel structure sections can be transported to the aerial operation platform one by one to be welded and assembled, and therefore construction of the all-welded steel truss girder bridge is completed.
本发明公开了一种基于悬臂空中作业平台的超小高跨比全焊钢桁梁桥施工方法。包括如下步骤：步骤一、主桥钢结构节段划分；步骤二、单个主桥钢结构节段空中散件拼装；步骤三、平台前移施工：解除空中作业平台与主桥钢结构之间的临时锚固体系，并进行空中作业平台与主桥钢结构之间的平台前移措施构造施工；步骤四、平移空中作业平台：通过平台前移措施构造，牵引空中作业平台前移一段距离；步骤五、空中作业平台二次锚固；步骤六、重复步骤二至五，直至完成整个全焊钢桁梁桥施工。由此可见，本发明提供了一种全焊钢桁梁桥的空中作业新工艺，可以逐一将构成各主桥钢结构节段的各散件运输至空中作业平台进行焊接拼装，从而完成全焊钢桁梁桥的施工。
Ultra-small-height-span-ratio all-welded steel truss girder bridge construction method based on cantilever aerial work platform
The invention discloses a construction method of an ultra-small height-span ratio all-welded steel truss girder bridge based on a cantilever aerial work platform. The method includes the following steps that firstly, main bridge steel structure segments are divided; step 2, splicing the single main bridge steel structure section in-air spare parts; 3, platform forward-moving construction is conducted, specifically, a temporary anchoring system between the aerial work platform and the main bridge steel structure is removed, and platform forward-moving measure construction between the aerial work platform and the main bridge steel structure is conducted; step 4, translating the aerial work platform: constructing and pulling the aerial work platform to move forwards for a certain distance through a platform forward moving measure; 5, secondary anchoring of the aerial work platform; and sixthly, the second step to the fifth step are repeated till construction of the whole all-welded steel truss girder bridge is completed. Therefore, according to the novel aerial operation technology of the all-welded steel truss girder bridge, all the spare parts forming all the main bridge steel structure sections can be transported to the aerial operation platform one by one to be welded and assembled, and therefore construction of the all-welded steel truss girder bridge is completed.
本发明公开了一种基于悬臂空中作业平台的超小高跨比全焊钢桁梁桥施工方法。包括如下步骤：步骤一、主桥钢结构节段划分；步骤二、单个主桥钢结构节段空中散件拼装；步骤三、平台前移施工：解除空中作业平台与主桥钢结构之间的临时锚固体系，并进行空中作业平台与主桥钢结构之间的平台前移措施构造施工；步骤四、平移空中作业平台：通过平台前移措施构造，牵引空中作业平台前移一段距离；步骤五、空中作业平台二次锚固；步骤六、重复步骤二至五，直至完成整个全焊钢桁梁桥施工。由此可见，本发明提供了一种全焊钢桁梁桥的空中作业新工艺，可以逐一将构成各主桥钢结构节段的各散件运输至空中作业平台进行焊接拼装，从而完成全焊钢桁梁桥的施工。
Ultra-small-height-span-ratio all-welded steel truss girder bridge construction method based on cantilever aerial work platform
基于悬臂空中作业平台的超小高跨比全焊钢桁梁桥施工方法
XU SHENGLIANG (author) / WANG MINGDA (author)
2023-03-07
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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