A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-altitude horizontal subsection orbital transfer sliding installation method for large-span steel truss
The invention discloses a high-altitude horizontal subsection orbital transfer sliding installation method for a large-span steel truss. The method comprises the steps that sliding rails are divided into n+1 sections to be arranged, the sliding rails are arranged in a stepped mode from the large-span end to the small-span end of the truss, and when the truss is installed, the truss is sequentiallyinstalled from small to large according to the length of the truss; the truss with the minimum length is selected; a chord member of the truss is lengthened, so that the overall length of the truss is the same as the distance of the maximum span between two stand columns; the chord member of the truss is in sliding connection with the sliding rail with the maximum span; the truss is pushed to slide towards the small-span end of the sliding rail in the length direction of the sliding rail; when the truss moves to a transition section between the two sections of sliding rails, horizontal orbital transfer is completed, the end of the chord member of the truss is cut off, and the overall length of the truss is the same as the span distance between the next set of two stand columns; and the truss is moved to a preset installation position through a plurality of times of orbital transfer sliding. According to the method, a solution is provided for installation of a large-tonnage high-altitude non-parallel symmetric steel structure by a construction unit, and the construction difficulty and risk are reduced.
本发明是一种大跨度钢桁架高空水平分段变轨滑移安装方法，将滑移轨道拆分成n+1段布置，滑移轨道由桁架大跨度端至小跨度端阶梯设置，安装桁架时，按照桁架长度由小至大顺次安装；选取得到长度最小的桁架；对桁架弦杆加长，使桁架整体长度与两立柱之间最大跨度的间距相同；将桁架弦杆与最大跨度滑移轨道滑动连接；推动桁架沿滑移轨道长度方向朝向滑移轨道小跨度端滑动；当桁架移动至两段滑移轨道之间的过渡段时，完成水平变轨并切除桁架弦杆端部，使桁架整体长度与下一组两立柱之间跨度距离相同；经过多次变轨滑动将桁架位移到预定安装位置。该方法为施工建设单位在大吨位高空非平行对称钢结构安装提供解决案，降低了施工难度和风险。
High-altitude horizontal subsection orbital transfer sliding installation method for large-span steel truss
The invention discloses a high-altitude horizontal subsection orbital transfer sliding installation method for a large-span steel truss. The method comprises the steps that sliding rails are divided into n+1 sections to be arranged, the sliding rails are arranged in a stepped mode from the large-span end to the small-span end of the truss, and when the truss is installed, the truss is sequentiallyinstalled from small to large according to the length of the truss; the truss with the minimum length is selected; a chord member of the truss is lengthened, so that the overall length of the truss is the same as the distance of the maximum span between two stand columns; the chord member of the truss is in sliding connection with the sliding rail with the maximum span; the truss is pushed to slide towards the small-span end of the sliding rail in the length direction of the sliding rail; when the truss moves to a transition section between the two sections of sliding rails, horizontal orbital transfer is completed, the end of the chord member of the truss is cut off, and the overall length of the truss is the same as the span distance between the next set of two stand columns; and the truss is moved to a preset installation position through a plurality of times of orbital transfer sliding. According to the method, a solution is provided for installation of a large-tonnage high-altitude non-parallel symmetric steel structure by a construction unit, and the construction difficulty and risk are reduced.
本发明是一种大跨度钢桁架高空水平分段变轨滑移安装方法，将滑移轨道拆分成n+1段布置，滑移轨道由桁架大跨度端至小跨度端阶梯设置，安装桁架时，按照桁架长度由小至大顺次安装；选取得到长度最小的桁架；对桁架弦杆加长，使桁架整体长度与两立柱之间最大跨度的间距相同；将桁架弦杆与最大跨度滑移轨道滑动连接；推动桁架沿滑移轨道长度方向朝向滑移轨道小跨度端滑动；当桁架移动至两段滑移轨道之间的过渡段时，完成水平变轨并切除桁架弦杆端部，使桁架整体长度与下一组两立柱之间跨度距离相同；经过多次变轨滑动将桁架位移到预定安装位置。该方法为施工建设单位在大吨位高空非平行对称钢结构安装提供解决案，降低了施工难度和风险。
High-altitude horizontal subsection orbital transfer sliding installation method for large-span steel truss
一种大跨度钢桁架高空水平分段变轨滑移安装方法
2020-12-04
Patent
Electronic Resource
Chinese
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