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[1]LI Ruidong,SONG Tingsu,WANG Linjian.Study on Seismic Response of High-rise Shear Wall Isolated Building Considering Velocity Pulse Ground Motion[J].Journal of Seismological Research,2021,44(01):113-120.

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Study on Seismic Response of High-rise Shear Wall Isolated Building Considering Velocity Pulse Ground Motion

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 44 Number of periods: 2021 01 Page number: 113-120 Column: Public date: 2021-01-15

Title:: Study on Seismic Response of High-rise Shear Wall Isolated Building Considering Velocity Pulse Ground Motion

Author(s):: LI Ruidong¹; SONG Tingsu¹; 2; WANG Linjian¹; 2; (1.Yunnan Earthquake Agency,Kunming 650224,Yunnan,China)(2.Shenzhen Academy of Disaster Prevention and Reduction,Shenzhen 518003,Guangdong,China)

Keywords:: velocity pulse; isolation structure; epicenter distance; effective duration; amplification effect

CLC:: P315.923

DOI:: -

Abstract:: 90 groups of non-pulse and pulse ground motions are divided into 7 and 6 categories according to epicenter distance and effective duration respectively,then input to a 99.7 m high-rise shear wall isolation building in Kunming for fast nonlinear analysis.The results show that:①Under the condition of fortification earthquake,the non-pulse inter-story shear force and overturning moment of the structure are less than the pulse values,and the proportion increases as the floor increases.②The average amplification effect of velocity pulse ground motions of isolation bearing is about 1.23～2.44 under rare earthquake.When the epicenter distance is(50 km,70 km] or the effective duration is(40 s,50 s],the effect of velocity pulse is the most significant.③The tensile and compressive stress of the rubber bearings at the edge of the structure,and the horizontal shear force of natural rubber bearings are more obviously affected by velocity pulse.

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Last Update: 2021-01-15