摘要
青岛财富大厦是一座复杂的超限高层建筑。设计除利用SATWE程序及ETABS和ANSYS有限元分析程序,进行弹性和弹塑性计算分析外,还对结构进行了静力弹塑性分析(Pushover Analysis)。研究表明,静力弹塑性分析方法在超限高层结构设计中,由于受高振型的影响,理论上会存在一定的误差,但是通过Pushover分析,可以帮助我们从宏观上发现结构在罕遇地震作用下的破坏机制,从而对可能存在的薄弱部位进行有针对性的加强,提高结构可靠度。
To investigate the seismic behavior of an out of code high-rise structure,Qingdao Fortune building,Pushover analysis was conducted combined with the elastic and elastic-plastic analysis by using SATWE program and FEM software, ETABS and ANSYS.The results show that,while the elastic-plastic analysis does not fully agree with the result from theoretical valuation due to the existence of high order mode shape,the push-over analysis is effective in analyzing failure mechanism and predicting the weakest links of out of code high-rise structure under strong earthquake.Proper detailing can then be carried out to enhance the weakest link in design.
出处
《建筑结构》
CSCD
北大核心
2009年第S1期553-556,共4页
Building Structure
关键词
超限高层
高位转换
弹塑性分析
薄弱部位
PUSHOVER分析
out of code high-rise construction
high position transfer
elastic-plastic analysis
weakest link
Pushover analysis
