Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of ultra-large-span double-high-vanadium-cable curved surface beam string
The invention provides a construction method of an ultra-large-span double-high-vanadium-cable curved surface beam string. The construction method comprises the steps that simulation analysis and checking calculation are conducted on the construction process before construction, and the beam string is segmented and sectioned through the BIM technology, and model selection is conducted on hoisting equipment; the beam string is machined in a factory and then transported to the site in a spare part mode to be spliced, and thus transportation is convenient; and a corresponding supporting jig frame is arranged, a large-tonnage crane is arranged to conduct high-altitude segmented hoisting on the beam string, construction simulation calculation is conducted on the tensioning process before double-high-vanadium-cable tensioning construction, synchronous monitoring is conducted during construction, and thus tensioning force in the whole tensioning process is controlled. The situation that the structural rigidity of a beam string structural system is weak before prestressed steel cable tensioning construction is solved, and through synchronous tensioning of double high vanadium cables, the problems that stress secondary distribution in the prestressed cable tensioning process, structural deformation caused by prestressed cable tensioning construction and the influence on the mounting quality are prevented.
一种超大跨度双高钒索曲面张弦梁的施工方法，本发明从施工前对施工过程进行模拟分析和验算，利用BIM技术对张弦梁分段分节、吊装设备进行选型；张弦梁工厂加工后以散件的形式运输到现场，进行拼装，这样运输方便；设置相应的支撑胎架，配置大吨位吊机对张弦梁进行高空分段吊装,而双高钒索张拉施工前对张拉过程进行施工模拟计算，施工时进行同步监测，从而对张拉全过程中张拉力进行把控。解决了张弦梁结构体系在预应力钢索张拉施工前结构刚度较弱的情况，通过对双高钒索的同步张拉，防止了预应力索张拉过程受力二次分配，预应力索张拉施工对结构变形、影响安装质量的难题。
Construction method of ultra-large-span double-high-vanadium-cable curved surface beam string
The invention provides a construction method of an ultra-large-span double-high-vanadium-cable curved surface beam string. The construction method comprises the steps that simulation analysis and checking calculation are conducted on the construction process before construction, and the beam string is segmented and sectioned through the BIM technology, and model selection is conducted on hoisting equipment; the beam string is machined in a factory and then transported to the site in a spare part mode to be spliced, and thus transportation is convenient; and a corresponding supporting jig frame is arranged, a large-tonnage crane is arranged to conduct high-altitude segmented hoisting on the beam string, construction simulation calculation is conducted on the tensioning process before double-high-vanadium-cable tensioning construction, synchronous monitoring is conducted during construction, and thus tensioning force in the whole tensioning process is controlled. The situation that the structural rigidity of a beam string structural system is weak before prestressed steel cable tensioning construction is solved, and through synchronous tensioning of double high vanadium cables, the problems that stress secondary distribution in the prestressed cable tensioning process, structural deformation caused by prestressed cable tensioning construction and the influence on the mounting quality are prevented.
一种超大跨度双高钒索曲面张弦梁的施工方法，本发明从施工前对施工过程进行模拟分析和验算，利用BIM技术对张弦梁分段分节、吊装设备进行选型；张弦梁工厂加工后以散件的形式运输到现场，进行拼装，这样运输方便；设置相应的支撑胎架，配置大吨位吊机对张弦梁进行高空分段吊装,而双高钒索张拉施工前对张拉过程进行施工模拟计算，施工时进行同步监测，从而对张拉全过程中张拉力进行把控。解决了张弦梁结构体系在预应力钢索张拉施工前结构刚度较弱的情况，通过对双高钒索的同步张拉，防止了预应力索张拉过程受力二次分配，预应力索张拉施工对结构变形、影响安装质量的难题。
Construction method of ultra-large-span double-high-vanadium-cable curved surface beam string
一种超大跨度双高钒索曲面张弦梁的施工方法
LIU XIE (Autor:in) / LIU SHENGGUO (Autor:in) / CHEN XIAMING (Autor:in) / LIU MINGGUO (Autor:in) / DAI CHAOHU (Autor:in)
24.09.2021
Patent
Elektronische Ressource
Chinesisch
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