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A platform for research: civil engineering, architecture and urbanism
Single-hole large-span steel box girder metro-crossing walking type pushing construction method
The invention discloses a single-hole large-span steel box girder metro-crossing walking type pushing construction method. The method comprises the following steps of 1, support erecting; 2, steel boxgirder assembling; 3, guide beam installing; 4, pushing equipment installing; 5, walking type pushing; 6, performing incremental launching construction; 7, landing a girder, and 8, placing the steelbox girder in place, detaching the front guide girder and the rear guide girder, detaching the support, and completing pushing construction. Under the condition that normal operation of subways and depots is guaranteed, the adjacent bridge span erection supports are used for splicing, the single-hole steel box girder is provided with the front guide beam and the rear guide beam, after splicing iscompleted, the whole hole is pushed in place at a time through the walking type pushing equipment, the supports are stable in the whole pushing process, the front guide beam and the rear guide beam ofthe steel box girder are reliable, and the walking type pushing equipment travels stably. The construction is safe, the in-place precision is high, the problem of pushing construction of the steel box girder is solved, and good economic and social benefits are obtained.
本发明公开了单孔大跨径钢箱梁跨地铁步履式顶推施工工法，包括以下步骤；步骤一、支架搭设，步骤二、钢箱梁拼装，步骤三、导梁安装，步骤四、顶推设备安装，步骤五、步履式顶推；步骤六、顶推施工；步骤七、落梁，步骤八、钢箱梁落梁、就位，拆除前、后导梁，拆除支架，完成顶推施工。本发明在保证地铁及车辆段的正常运行情况下，利用相邻桥跨搭设支架进行拼装，单孔钢箱梁设置前、后导梁，拼装完成后由步履式顶推设备整孔一次顶推就位，整个顶推过程支架稳定，钢箱梁前、后导梁可靠，步履式顶推设备行走平稳，施工安全、就位精度高，解决了本项目钢箱梁顶推施工的难题，取得了良好的经济和社会效益。
Single-hole large-span steel box girder metro-crossing walking type pushing construction method
The invention discloses a single-hole large-span steel box girder metro-crossing walking type pushing construction method. The method comprises the following steps of 1, support erecting; 2, steel boxgirder assembling; 3, guide beam installing; 4, pushing equipment installing; 5, walking type pushing; 6, performing incremental launching construction; 7, landing a girder, and 8, placing the steelbox girder in place, detaching the front guide girder and the rear guide girder, detaching the support, and completing pushing construction. Under the condition that normal operation of subways and depots is guaranteed, the adjacent bridge span erection supports are used for splicing, the single-hole steel box girder is provided with the front guide beam and the rear guide beam, after splicing iscompleted, the whole hole is pushed in place at a time through the walking type pushing equipment, the supports are stable in the whole pushing process, the front guide beam and the rear guide beam ofthe steel box girder are reliable, and the walking type pushing equipment travels stably. The construction is safe, the in-place precision is high, the problem of pushing construction of the steel box girder is solved, and good economic and social benefits are obtained.
本发明公开了单孔大跨径钢箱梁跨地铁步履式顶推施工工法，包括以下步骤；步骤一、支架搭设，步骤二、钢箱梁拼装，步骤三、导梁安装，步骤四、顶推设备安装，步骤五、步履式顶推；步骤六、顶推施工；步骤七、落梁，步骤八、钢箱梁落梁、就位，拆除前、后导梁，拆除支架，完成顶推施工。本发明在保证地铁及车辆段的正常运行情况下，利用相邻桥跨搭设支架进行拼装，单孔钢箱梁设置前、后导梁，拼装完成后由步履式顶推设备整孔一次顶推就位，整个顶推过程支架稳定，钢箱梁前、后导梁可靠，步履式顶推设备行走平稳，施工安全、就位精度高，解决了本项目钢箱梁顶推施工的难题，取得了良好的经济和社会效益。
Single-hole large-span steel box girder metro-crossing walking type pushing construction method
单孔大跨径钢箱梁跨地铁步履式顶推施工工法
ZHANG LINING (author) / YE XUJUN (author)
2021-02-12
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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