Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Reverse construction method of continuous steel truss web-plate truss double-layer combined swivel bridge
The invention discloses a reverse construction method of a continuous steel truss web-plate truss double-layer combined swivel bridge, which comprises the following steps of: firstly, erecting a bracket platform in a direction parallel to a railway to splice all steel structures, then sequentially pouring and tensioning concrete beam segment steel bundles in sections, dismantling a bracket, and installing a temporary steel support to carry out swivel construction; by means of the construction method, safe and efficient hoisting installation construction of the upper-layer giant steel truss web-plate truss combined structure is achieved, and therefore construction of a continuous steel truss web-plate truss double-layer combined swivel bridge of the whole overpass railway is smoothly achieved; meanwhile, the cast-in-place support formwork is connected with the upper-layer steel truss girder structure in a pulling mode, and the reversed beam supporting effect of the upper-layer steel truss girder in the pouring process of the lower-layer concrete girder is fully achieved.
本发明公开一种连续钢桁腹‑板桁双层组合转体桥梁逆作施工方法，采用先平行于铁路方向搭设支架平台拼装完成全部钢结构，然后分段依次浇筑、张拉混凝土梁节段钢束，再拆除支架、安装临时钢支撑进行转体施工；使用本发明实现了上层巨型钢桁腹‑板桁组合结构安全高效的吊装安装施工，从而顺利实现了整个上跨铁路的连续钢桁腹‑板桁双层组合转体桥梁的施工；同时，通过将现浇支架模板与上层钢桁梁结构进行拉结连接，充分发挥了上层钢桁梁在下层混凝土梁浇筑过程中的反梁支撑作用。
Reverse construction method of continuous steel truss web-plate truss double-layer combined swivel bridge
The invention discloses a reverse construction method of a continuous steel truss web-plate truss double-layer combined swivel bridge, which comprises the following steps of: firstly, erecting a bracket platform in a direction parallel to a railway to splice all steel structures, then sequentially pouring and tensioning concrete beam segment steel bundles in sections, dismantling a bracket, and installing a temporary steel support to carry out swivel construction; by means of the construction method, safe and efficient hoisting installation construction of the upper-layer giant steel truss web-plate truss combined structure is achieved, and therefore construction of a continuous steel truss web-plate truss double-layer combined swivel bridge of the whole overpass railway is smoothly achieved; meanwhile, the cast-in-place support formwork is connected with the upper-layer steel truss girder structure in a pulling mode, and the reversed beam supporting effect of the upper-layer steel truss girder in the pouring process of the lower-layer concrete girder is fully achieved.
本发明公开一种连续钢桁腹‑板桁双层组合转体桥梁逆作施工方法，采用先平行于铁路方向搭设支架平台拼装完成全部钢结构，然后分段依次浇筑、张拉混凝土梁节段钢束，再拆除支架、安装临时钢支撑进行转体施工；使用本发明实现了上层巨型钢桁腹‑板桁组合结构安全高效的吊装安装施工，从而顺利实现了整个上跨铁路的连续钢桁腹‑板桁双层组合转体桥梁的施工；同时，通过将现浇支架模板与上层钢桁梁结构进行拉结连接，充分发挥了上层钢桁梁在下层混凝土梁浇筑过程中的反梁支撑作用。
Reverse construction method of continuous steel truss web-plate truss double-layer combined swivel bridge
一种连续钢桁腹-板桁双层组合转体桥梁逆作施工方法
WANG JING (Autor:in) / ZHAO SHIJIE (Autor:in) / XU YAN (Autor:in) / WANG YONG (Autor:in) / YANG XUEZHEN (Autor:in) / CHEN HUI (Autor:in) / ZHANG YANJUN (Autor:in) / FAN YANTING (Autor:in) / HAO GUOXIANG (Autor:in) / LI YAN (Autor:in)
07.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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