THE MULTI-DIMENSIONAL SEISMIC RESPONSE ANALYSIS OF UPER-ARGE HYPERBOLIC COOLING TOWERS

摘要：

Cooling tower structure is a typical rotating thinshell structure. For more than 200m of super-large hyperbolic cooling towers,if the earthquake comes,the huge circular base is likely to withstand the impact of seismic waves from different directions,which makes the structure produce multi-dimensional vibration. Firstly,this paper uses response spectrum method to calculate the response of the super-large cooling tower under seismic action,and then,it adopts time-history analysis to study elastic seismic response of the structure under the action of onedimensional and bi-directional horizontal earthquake. The numerical results show that: the response of the cooling tower structure under the multi-dimensional earthquake is significantly greater than under the one-dimensional earthquake. The maximum displacement occurs near the throat of the tower,which is the weak part of the structure.

关键词： Hyperbolic cooling tower Multi-dimensional seismic Time-history analysis Finite element method

作者: Hai Zhao Guo-Liang Bai Lei Wu Gao-Hui Xu

作者单位: Xian University of Architecture and Technology,Xian 710055,P.R. China Luoyang Petrochemical Engineering Corporation/SINOPEC,Luoyang 471003,P.R.China

会议类型: 国际会议

会议名称: The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)

会议地点: 广州

会议语种:英文

页码: 2102-2107

在线出版日期: 2010-12-01（万方平台首次上网日期，不代表论文的发表时间）