JARDJournal of Architectural Research and Development2208-35292208-3537Bio-Byword Scientific Publishing Pty. Ltd.10.26689/jard.v8i3.7168ArticleSeismic Response Analysis of Steel Structure Isolation System Under Long-Period Seismic Motionhttps://artdesignp.com/journal/JARD/8/3/10.26689/jard.v8i3.7168YuLong,ShengMei,FengHuan,HuJianan2024832024-06-18To analyze the seismic response of steel structure isolation systems under long-period seismic motion, a 9-story steel frame building was selected as the subject. Five steel structure finite element models were established using SAP2000. Response spectrum analysis was conducted on the seismic motion to determine if it adhered to the characteristics of long-period seismic motion. Modal analysis of each structural model revealed that the isolation structure significantly prolonged the structural natural vibration period and enhanced seismic performance. Base reactions and floor displacements of various structures notably increased under long-period seismic motion compared to regular seismic activity. Placing isolation bearings in the lower part of the structure proved more effective under long-period seismic motion. In seismic design engineering, it is essential to consider the impact of long-period seismic motion on structures and the potential failure of isolation bearings.

Shen Z, Luo J, Li Y, 2016, Discussion on Coordinated Development of Urbanization, Industrialization, and Informatization with Steel Buildings as Objects in the Construction Industry. Progress in Steel Building Structures, 18(02): 1–6 + 25.

Bao S, 2023, Urgent Need to Achieve Deep Integration of the Steel-Steel Structure-Building Industry Chain. China Metallurgical News, October 24, 2023.

Wang L, Tan J, Wang M, 2023, Conception of Structural Seismic Design Based on Double Carbon Goals. Steel Construction (Chinese & English), 38 (10): 32–41.

Millichamp D, Tirca L, 2022, Dual System for Enhanced Seismic Performance of Friction-Sliding Braced Frames, Springer International Publishing, 641–649.

Sipan Y, Rais A, 2016, Evaluation of Seismic Performance Factors in High Rise Steel Buildings with Dual Lateral Systems Consisting of Buckling Restrained Braced Frames and Intermediate Moment Frames. Procedia Engineering, 161: 680–686.

Dai M, 2020, Quantitative Identification and Simulation of Far-Field Long-Period Seismic Motions, dissertation, Chongqing University.

Sun Z, Li X, Li H, et al., 2023, Analysis on the Seismic Response of RC Bridge Piers Under Long-Duration Earthquake Seismic Motions. Journal of Basic Science and Engineering, 31(01): 154–169.

Heidarpour A, Zhao X, Hayashi K, et al., 2023, Seismic Performance of Concrete-Filled Steel Tube Columns Using Ultra-High-Strength Steel Under Long-Period Seismic Motion Demands. Advances in Structural Engineering, 26(12): 2160–2171.

Wang B, Zhang J, Zheng R, et al., 2023, Seismic Response Analysis of Air-Cooled Supporting Structure Under Long-Period Seismic Motion. Earthquake Engineering and Engineering Dynamics, 43(04): 104–117.

Zhang L, Xia T, 2023, Study on the Overturning Resistance of Base-Isolated Structure under the Action of Long-Period Seismic Motion. Journal of Natural Disasters, 32(04): 170–180.

Zhou W, Liu D, Zhao J, et al., 2023, Seismic Response Analysis of Mid-Story Isolation High-Rise Building Structure under Three-Dimensional Long Period Seismic Motion. Journal of Nanjing Tech University (Natural Science Edition), 45(02): 188–195.

Fang X, Fan C, Miao M, 2023, Seismic Fragility Analysis of Water Tower Under Long-Period Seismic Motions. Guangdong Architecture Civil Engineering, 30(07): 63–67.

Lu X, Qin S, Xu Z, 2023, Enlightenment of Turkey M7.8 Earthquake on China's Earthquake Prevention and Disaster Reduction. Cities and Disaster Reduction, 2023(02): 1–8.

Ministry of Housing and Urban-Rural Development of the People’s Republic of China, Code for Seismic Design of Buildings, GB 50011-2010 (2016 Edition).