考虑施工进程的弦支穹顶结构临时支撑体系  

Temporary support system for suspen-dome structure with considering construction process

作　　者：刘慧娟[1] 罗永峰[2] 杨绿峰[1] 李国强[2] 

机构地区：[1]广西大学工程防灾与结构安全教育部重点实验室,南宁530004 [2]同济大学土木工程学院,上海200092

出　　处：《沈阳工业大学学报》2011年第2期226-233,共8页Journal of Shenyang University of Technology

基　　金：国家自然科学基金资助项目(50768001);博士点基金资助项目(20070247002)

摘　　要：针对弦支穹顶结构临时支撑体系的布置位置、布置方式及其刚度等施工参数对施工过程中结构性能的影响,提出了临时支撑系统的评价指标以及具有实际参考价值的施工参数取值范围.采用有限元软件ANSYS,分析关键参数对施工中准结构受力性能的影响,从而得出其取值范围.分析结果表明,临时支撑的布置位置、布置方式及其刚度等参数对施工过程中弦支穹顶结构性能的影响较大,提出的临时支撑施工参数可为结构方案设计和施工调整提供较为科学的依据.Aiming at the effect of the construction parameters,such as the arrangement position,arrangement mode and stiffness of suspen-dome temporary support system,on the structure performances in construction process,the evaluation indexes for temporary support system and the reasonable selecting ranges of construction parameters were proposed.Then by adopting the ANSYS software,the effects of the key parameters on the mechanical behavior of the structure were analyzed,and the reasonable selecting ranges of the parameters were determined.The analysis results show that such key parameters as the arrangement position,arrangement mode and stiffness of temporary support have the evident effect on the performance of suspen-dome structure in construction process.The proposed construction parameters can provide the scientific basis for the project design and construction adjustment in construction procedures.

关 键 词：弦支穹顶结构 施工进程 预应力张拉 临时支撑系统 临时支撑布置 临时支撑刚度 评价指标 参数选取 

分 类 号：TU393.3[建筑科学—结构工程]