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[1]LIN Guoliang,FU Lei,CUI Jianwen,et al.Study on the Response of the Structural Seismic Response Array in Dali City to the 2021 Yangbi,Yunnan MS6.4 Earthquake[J].Journal of Seismological Research,2021,44(03):446-451.

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Study on the Response of the Structural Seismic Response Array in Dali City to the 2021 Yangbi,Yunnan M_S6.4 Earthquake

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 44 Number of periods: 2021 03 Page number: 446-451 Column: Public date: 2021-10-20

Title:: Study on the Response of the Structural Seismic Response Array in Dali City to the 2021 Yangbi,Yunnan M_S6.4 Earthquake

Author(s):: LIN Guoliang¹; 2; FU Lei¹; CUI Jianwen²; ZHAO Kun²; YANG Liwei²; WANG Bangzhi²; (1.Institute of Geophysics,China Earthquake Administration,Beijing 100081,China)(2.Yunnan Earthquake Agency,Kunming 650224,Yunnan,China)

Keywords:: the Yangbi Earthquake; the structural seismic response array; response spectrum; earthquake damage

CLC:: P315.914

DOI:: -

Abstract:: In this paper,the significance of the structural seismic response array for the earthquake-resistant design of structure is briefly discussed,and the layout of the measuring points of the structural seismic response array in the building of the Management Committee of Dali Economic and Technological Development Zone is introduced.In addition,the strong-motion records obtained in the M_S6.4 Yangbi earthquake event on May 21,2021 is summarized.The peak ground acceleration and the frequency spectrum of the strong motion records of the main shock and the M_S≥5.0 after shocks are processed and analysed.The results show that the motions are amplified both in the horizontal and the vertical direction with the ascending of the building’s floor.And as the magnitude increases,the amplification of the motions is more obvious.Meanwhile the natural frequency of the first vibration mode and the second vibration mode is respectively 0.48 Hz and 1.86 Hz.

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Last Update: 2021-10-20