Seismic performance-based design of tower A super high-rise structure of Xing Chuang City Complex project in Hangzhou
Tower A of Xing Chuang City Complex project in Hangzhou has 45 floors above ground and 2 floors underground,with a structural height of 194.3m.The structure is a circular concrete-filled steel tube frame-reinforced concrete core tube.There are some problems in the structure,such as torsional irregularity,floor openings and so on.In order to achieve the pre-determined seismic performance of the structure,first of all,the two structural system options were optimized selection.And the regularity of plane and elevation was solved by seaming and optimizing floor height.Then,the elastic comparison calculation and time history analysis of tower A under frequent earthquakes were carried out by using YJK and MIDAS Gen software.The response of the structure under the fortification earthquake and rare earthquake was further studied by the performance design and the dynamic elastoplastic time history analysis of rare earthquake.Finally,according to the above analysis and calculation results,the key parts and weak parts of the structure have taken targeted strengthening measures.The results show that the whole structure and structural element has good seismic performance which can meet the seismic performance-based design objectives,and the structure is safe and reliable.
super high-rise structureconcrete-filled steel tube frame-reinforced concrete core tubetime history analysis under frequent earthquakesesmic performance-based designdynamic elastoplastic time history analysis
NETL
NSTL
万方数据
维普
