Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pushing beam falling construction method for small-radius curve steel box beam overpass bridge
The invention discloses a small-radius curve steel box girder overpass bridge pushing beam falling construction method which comprises the steps that bridge pier cast-in-place box girder construction on the two sides of a main span is carried out, steel box girder sections are spliced, pushing supports are directly erected on existing bridge piers, and the steel box girder sections are erected on the bridge piers. A walking-type pushing device is arranged on the pushing bracket and is used for pushing the installed steel box girder section and the front guide girder towards a pier far away from the direction of the assembly site; the steel box girder is pushed to the pier on one side of the main span of the bridge on the front guide girder, the remaining steel box girder sections and the rear guide girder are assembled, the front guide girder is pushed to pass through the pier on the other side of the main span of the bridge, the front guide girder is pushed to pass through the side span of the bridge, the steel box girder is pushed to the designed position, the front guide girder, the rear guide girder and the pushing support are disassembled, and the steel box girder falls to the designed elevation. According to the method, the pushing support is directly erected on the existing bridge pier, and the pushing support and the beam falling support share one set of support, so that a special temporary buttress and a special beam falling support do not need to be erected, the construction cost is effectively saved, and meanwhile, the beam falling safety can be effectively guaranteed.
本发明公开了一种小半径曲线钢箱梁跨线桥顶推落梁施工方法，包括主跨两侧桥墩现浇箱梁施工、进行钢箱梁梁段拼装，直接在既有桥墩上进行顶推支架搭设，并在顶推支架上设置步履式顶推器、将已安装好的钢箱梁梁段和前导梁向远离拼装场地方向的桥墩顶推,顶推到前导梁上跨桥梁主跨一侧的桥墩、拼装剩余钢箱梁梁段以及后导梁、将前导梁顶推过桥梁主跨另一侧墩、将前导梁顶推过桥梁边跨、将钢箱梁顶推至设计位置、拆除前导梁、后导梁和顶推支架，将钢箱梁落至设计标高等过程。该方法直接在既有桥墩上进行顶推支架搭设，而且顶推支架和落梁支架共用一套支架，不仅不需要再行搭设专门的临时支墩和落梁支架，有效节约施工成本，同时可以有效保证落梁安全。
Pushing beam falling construction method for small-radius curve steel box beam overpass bridge
The invention discloses a small-radius curve steel box girder overpass bridge pushing beam falling construction method which comprises the steps that bridge pier cast-in-place box girder construction on the two sides of a main span is carried out, steel box girder sections are spliced, pushing supports are directly erected on existing bridge piers, and the steel box girder sections are erected on the bridge piers. A walking-type pushing device is arranged on the pushing bracket and is used for pushing the installed steel box girder section and the front guide girder towards a pier far away from the direction of the assembly site; the steel box girder is pushed to the pier on one side of the main span of the bridge on the front guide girder, the remaining steel box girder sections and the rear guide girder are assembled, the front guide girder is pushed to pass through the pier on the other side of the main span of the bridge, the front guide girder is pushed to pass through the side span of the bridge, the steel box girder is pushed to the designed position, the front guide girder, the rear guide girder and the pushing support are disassembled, and the steel box girder falls to the designed elevation. According to the method, the pushing support is directly erected on the existing bridge pier, and the pushing support and the beam falling support share one set of support, so that a special temporary buttress and a special beam falling support do not need to be erected, the construction cost is effectively saved, and meanwhile, the beam falling safety can be effectively guaranteed.
本发明公开了一种小半径曲线钢箱梁跨线桥顶推落梁施工方法，包括主跨两侧桥墩现浇箱梁施工、进行钢箱梁梁段拼装，直接在既有桥墩上进行顶推支架搭设，并在顶推支架上设置步履式顶推器、将已安装好的钢箱梁梁段和前导梁向远离拼装场地方向的桥墩顶推,顶推到前导梁上跨桥梁主跨一侧的桥墩、拼装剩余钢箱梁梁段以及后导梁、将前导梁顶推过桥梁主跨另一侧墩、将前导梁顶推过桥梁边跨、将钢箱梁顶推至设计位置、拆除前导梁、后导梁和顶推支架，将钢箱梁落至设计标高等过程。该方法直接在既有桥墩上进行顶推支架搭设，而且顶推支架和落梁支架共用一套支架，不仅不需要再行搭设专门的临时支墩和落梁支架，有效节约施工成本，同时可以有效保证落梁安全。
Pushing beam falling construction method for small-radius curve steel box beam overpass bridge
一种小半径曲线钢箱梁跨线桥顶推落梁施工方法
LIU WENSHENG (Autor:in) / FENG CHAO (Autor:in) / CHEN ZHAOBO (Autor:in) / LI FENGCHENG (Autor:in) / HE WEN (Autor:in) / BI HAIHONG (Autor:in) / SHANG YAXIN (Autor:in)
26.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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