摘要
通过重庆奥林匹克体育中心体育场钢网壳结构铸钢节点足尺试验,介绍了满足空间10个方向、大吨位加载的加载框架,以及对10根杆件施加压力或拉力的方式。根据有限元分析结果,布置了应变测点,得到测点应力值。结合试验和有限元计算,分析了节点的应力分布规律,按照Von.Mises屈服强度准则评估了节点的承载安全性。
The full-scale test on the cast-steel joint of the steel-reticulated shells for Chongqing Olympic stadium is reported.The heavy loading frame in ten directions and the ways to push or pull 10 spars are introduced.Strain observation points are arranged according to FEM analysis.Stress distributions are analyzed on the basis of the test and FEM analysis and the loading security of the joints is evaluated by using the Von.Mises yield criterion.
出处
《土木工程学报》
EI
CSCD
北大核心
2005年第6期8-12,19,53,共7页
China Civil Engineering Journal
关键词
网壳结构
铸钢节点
足尺试验
加载框架
安全性
reticulated shell
cast-steel joint
full-scale test
loading frame
safety
