建筑钢结构进展2023，Vol.25Issue(12)：94-101,8.DOI:10.13969/j.cnki.cn31-1893.2023.12.010
某体育场大悬挑钢屋盖支撑卸载过程分析
Analysis for Support Unloading Process of Large Cantilevered Steel Roof of a Stadium
邹海涛 1冯萍 2蔺军 1吴楚桥 1崔嘉慧 1吕志超1
作者信息
- 1. 浙江精工钢结构集团有限公司,浙江绍兴 312030
- 2. 浙江绿筑检测技术有限公司,浙江绍兴 312030
- 折叠
摘要
Abstract
Support unloading is the key step in the transformation of spatial structure from the construction phase to design phase.The unloading method will directly affect the safety of the structure as well as the stress conditions in service stage.In order to determine the reasonable unloading scheme for the steel structure roof support of large cantilevered stadium,firstly,some basic rules of removing temporary supports from steel roof support was presented and discussed;then,according to the structural stress characteristics of the steel structure roof of the stadium and the temporary support system arrangement,the zoning and multistage cyclic unloading method was selected.The integrated analysis model of stadium roof steel structure and temporary supports was established for the detailed analysis,and the data of support reaction,structural deformation,structural and support member stress during unloading process were obtained.The structural deformation obtained from numerical simulation was basically consistent with the field measured value.It is proved that it is a reasonable unloading method to unload the main truss support first and then the secondary truss support at each stage,The oscillation amplitude and peak value of the reaction force of temporary support and the stress of structural members can be effectively controlled during unloading process.关键词
体育场/钢结构/大悬挑/分区多级循环卸载Key words
stadium/steel structure/large cantilever/zoning and multistage cyclic unloading分类
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邹海涛,冯萍,蔺军,吴楚桥,崔嘉慧,吕志超..某体育场大悬挑钢屋盖支撑卸载过程分析[J].建筑钢结构进展,2023,25(12):94-101,8.
