Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steel truss girder erection method of large-span steel truss girder flexible arch bridge
The invention provides a steel truss girder erection method of a large-span steel truss girder flexible arch bridge, and relates to the technical field of bridge construction, and the steel truss girder erection method of the large-span steel truss girder flexible arch bridge comprises the following steps: erecting side span temporary piers at preset positions of two side spans; a preset number of internode steel beams are installed at the abutment piers at the starting positions of the two side spans through crawler cranes, and a first deck crane is assembled; cantilever assembly is conducted in the midspan direction through the two first deck cranes to the position of a closure opening of the steel truss girder; main span temporary piers are erected at preset positions of the two main spans; middle pier temporary rod pieces and a preset number of internode steel beams at the top of a middle pier are installed through a floating crane, and two second deck cranes are installed through the floating crane; symmetrical cantilevers on the two sides are assembled to the position of a closure gap through two second deck cranes; and the closure form is adjusted, and closure of the two side spans and the two main spans is completed. Compared with the prior art, investment of construction equipment is reduced, and the erecting efficiency of the steel truss girder is improved.
本发明提供了一种大跨度钢桁梁柔性拱桥的钢桁梁架设方法，涉及桥梁施工技术领域，大跨度钢桁梁柔性拱桥的钢桁梁架设方法包括在两边跨的预定位置搭设边跨临时墩；在两边跨的起始位置的边墩处采用履带吊安装预设数量的节间钢梁，并组装第一桥面吊机；通过两个第一桥面吊机向跨中方向进行悬臂拼装至钢桁梁的合龙口位置；在两主跨的预定位置搭设主跨临时墩；通过浮吊安装中墩临时杆件、中墩顶预设数量的节间钢梁，并通过浮吊安装两个第二桥面吊机；通过两个第二桥面吊机向两侧对称悬臂拼装至合龙口位置；调整合龙形态，并完成两边跨与两主跨的合龙。本发明相比于现有技术，减少了施工设备的投入，且提高了钢桁梁的架设效率。
Steel truss girder erection method of large-span steel truss girder flexible arch bridge
The invention provides a steel truss girder erection method of a large-span steel truss girder flexible arch bridge, and relates to the technical field of bridge construction, and the steel truss girder erection method of the large-span steel truss girder flexible arch bridge comprises the following steps: erecting side span temporary piers at preset positions of two side spans; a preset number of internode steel beams are installed at the abutment piers at the starting positions of the two side spans through crawler cranes, and a first deck crane is assembled; cantilever assembly is conducted in the midspan direction through the two first deck cranes to the position of a closure opening of the steel truss girder; main span temporary piers are erected at preset positions of the two main spans; middle pier temporary rod pieces and a preset number of internode steel beams at the top of a middle pier are installed through a floating crane, and two second deck cranes are installed through the floating crane; symmetrical cantilevers on the two sides are assembled to the position of a closure gap through two second deck cranes; and the closure form is adjusted, and closure of the two side spans and the two main spans is completed. Compared with the prior art, investment of construction equipment is reduced, and the erecting efficiency of the steel truss girder is improved.
本发明提供了一种大跨度钢桁梁柔性拱桥的钢桁梁架设方法，涉及桥梁施工技术领域，大跨度钢桁梁柔性拱桥的钢桁梁架设方法包括在两边跨的预定位置搭设边跨临时墩；在两边跨的起始位置的边墩处采用履带吊安装预设数量的节间钢梁，并组装第一桥面吊机；通过两个第一桥面吊机向跨中方向进行悬臂拼装至钢桁梁的合龙口位置；在两主跨的预定位置搭设主跨临时墩；通过浮吊安装中墩临时杆件、中墩顶预设数量的节间钢梁，并通过浮吊安装两个第二桥面吊机；通过两个第二桥面吊机向两侧对称悬臂拼装至合龙口位置；调整合龙形态，并完成两边跨与两主跨的合龙。本发明相比于现有技术，减少了施工设备的投入，且提高了钢桁梁的架设效率。
Steel truss girder erection method of large-span steel truss girder flexible arch bridge
一种大跨度钢桁梁柔性拱桥的钢桁梁架设方法
LIANG HUI (Autor:in) / ZHU DONGMING (Autor:in) / HUANG XINGYU (Autor:in) / GUO CHENG (Autor:in) / LONG YUYI (Autor:in) / ZHANG YANHUI (Autor:in) / XIA CHAOJUAN (Autor:in) / YANG ZHIMING (Autor:in) / ZHANG ZEQING (Autor:in) / ZHENG YI (Autor:in)
08.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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