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[1]YANG Jizhi,WANG Xinyu,LI Aiqun,et al.Investigation on the Resilience-based Seismic Design of Isolated Reinforced Concrete Frame Structure with Multi-towers Built on Large Chassis[J].Journal of Seismological Research,2024,47(01):114-122.[doi:10.20015/j.cnki.ISSN1000-0666.2024.0030]

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Investigation on the Resilience-based Seismic Design of Isolated Reinforced Concrete Frame Structure with Multi-towers Built on Large Chassis

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 47 Number of periods: 2024 01 Page number: 114-122 Column: Public date: 2023-11-20

Title:: Investigation on the Resilience-based Seismic Design of Isolated Reinforced Concrete Frame Structure with Multi-towers Built on Large Chassis

Author(s):: YANG Jizhi¹; 2; WANG Xinyu¹; 2; LI Aiqun¹; 2; YANG Cantian¹; 2; (1.School of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)(2.Multi-functional Shaking Tables Laboratory,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)

Keywords:: reinforced concrete frame structure with multi-towers; isolation design; design basis earthquake; maximum considered earthquake; seismic resilience

CLC:: TU973⁺.31

DOI:: 10.20015/j.cnki.ISSN1000-0666.2024.0030

Abstract:: A reinforced concrete(RC)frame structure with multi-towers located in the Ⅷ-degree(PGA=0.3 g)region was integrated into a common isolation system.The seismic response of the three towers in case of being hit by the design basis earthquake(DBE)and the maximum considered earthquake(MCE)was studied,and the assessment of the towers’ seismic resilience was carried out based on the Standard for Seismic Resilience Assessment of Buildings(GB/T 38591—2020).The results indicate that the isolation technology helps to extend the basic period of the structure by three times,reduce the seismic action,and effectively control the seismic response of the superstructure.Significant control of the absolute floor acceleration eliminates the damage of acceleration-sensitive non-structural components(ASNSCs).The repair cost of the structural components as well as the displacement-sensitive non-structural components(DSNSCs)takes up a major part of the total cost,and the repair time of the structural components in Phase 1 decides the total repair time of the structure.The seismic resilience of the structure applied with the seismic isolation scheme proposed in this paper can be successfully improved to Level 3,the outcomes can provide reference for design of isolated structure on large chassis.

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Last Update: 2023-12-20