某大型体育场安全性鉴定及抗震性能数值模拟

Safety Appraisal and Seismic Performance Simulation of a Large Stadium

大型体育场作为一种大型的公共设施,其安全性及抗震性能一直以来都备受关注,尤其是建盖年代较早的一些体育场。本文对某大型体育场进行安全性鉴定,并建立有限元模型,对其在罕遇地震作用下框架结构和网架结构的抗震性能进行数值模拟,给出了该体育场安全性等级及抗震性能评价。结果表明,该大型体育场的安全性和抗震性能不满足现行规范要求。建议进行加固处理,并建立检查制度,确保此类体育场的安全运营。

Large stadium as a large public facility,the safety and seismic performance have always been concerned,especially in some stadiums which built earlier. In this paper,the safety appraisal of a large stadium is carried out,and a finite element model is established. The seismic performances of the frame structure and grid structure under rare earthquake are stimulated,and the stadium security level and seismic performance evaluation are given. The results show that the stadium cannot meet the requirements of safety and seismic performance. Suggestions to reinforce and establish checking rules are put forward,in order to ensure the safe operation of this kind of stadium.