摘要
本文以某商场结构安全性鉴定项目为例,对其主体门式刚架结构进行平面、空间模型的对比分析,结果表明空间模型抗侧力构件提供的平面外支撑体系对整体结构空间共同作用存在影响,在实际计算复核中不应忽略,而平面模型的计算复核结果偏于保守,可能造成结果误判,应考虑空间作用并合理增加刚性系杆和支撑。
Taking appraisal of structural security project for a shopping mail for example,in-plane and spatial model of portal frame were built by comparative analysis. The results show that effect of out-plane supporting system for combined action of overall structure should not be ignored in calculation checks,which was provided by lateral load resisting member in space model. The calculation results of in-plane model tended to be on the conservative side. It may result in a miscarriage of justice. It should consider spatial interaction and reasonably increase rigid tie bar and support.
出处
《广东土木与建筑》
2015年第9期29-30,共2页
Guangdong Architecture Civil Engineering
关键词
门式刚架
空间作用性能
portal frame
performance of spatial effect
