摘要
沈阳财富中心采用框架-核心筒结构体系,主体结构高度179.9m,简要介绍了该结构的结构布置、主要特点、超限情况及抗震设防性能化目标。采用PKPM和ETABS两种程序,对结构进行了小震、中震、风荷载作用下的弹性分析,并进行了构件承载力验算。采用LS-DYNA程序对结构进行了罕遇地震弹塑性动力时程分析,对结构整体控制指标及关键构件的塑性发展进行了研究。采用FLUENT程序分别进行了单楼和考虑裙楼干扰效应的风洞模拟,得出了结构风荷载体型系数。分析结果表明,结构各项设计指标满足规范要求,各关键构件满足所设定的抗震性能目标,结构具有良好的抗震性能;裙楼对塔楼干扰明显,设计所取的风荷载体型系数能够满足风洞数值模拟结果和规范规定。
Shenyang Wealth Center adopts frame-corewall structural system with the main structural height of 179.9m.The structural layout,main characteristics,out-of-code situation and performance-based seismic fortification objectives of the structure were briefly introduced.Two programs,PKPM and ETABS,were used to perform elastic analysis of the structure under frequent earthquakes,fortification earthquakes,and wind loads,and the bearing capacity analysis of components was conducted.LS-DYNA program was used to conduct the elastic-plastic dynamic time-history analysis under rare earthquakes,and the overall control index of the structure and the plastic development of key components were studied.The FLUENT program was used to carry out wind tunnel simulations of the single building with and without considering the interference effect of podium respectively,and the shape coefficient of the structure was obtained.The analysis results show that the design indexes of the structure meet the requirements of the code,the key components meet the set seismic performance objectives,and the structure has good seismic performance;the podium building has obvious interference to the tower,and the shape coefficient selected in the design can meet the wind tunnel numerical simulation results and codes requirements.
作者
陈鹏
陈勇
郑朝荣
CHEN Peng;CHEN Yong;ZHENG Chaorong(China Northeast Architectural Design&Research Institute Co.,Ltd.,Shenyang 110006,China;School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China)
出处
《建筑结构》
CSCD
北大核心
2020年第21期19-25,共7页
Building Structure
基金
中建股份科技研发课题(CSCEC-2016-Z-41)。
关键词
沈阳财富中心
框架-核心筒结构
性能化设计
弹塑性动力时程分析
风洞数值模拟
Shenyang Wealth Center
frame-corewall structure
performance-based design
elastics-plastic dynamic time-history analysis
wind tunnel numerical simulation
