SEISMIC BEHAVIOR OF MSCSS BASED ON STORY DRIFT AND FAILURE PATH
THE MEGA-SUB CONTROLLED STRUCTURE SYSTEM (MSCSS) IS A NEW TYPE OF SEISMIC STRUCTURAL SYSTEM. THIS RESEARCH AIMS TO FIND WEAK MEMBERS IN THE STRUCTURE AND BETTER DESCRIBE THE FAILURE STATE. TO ACHIEVE THIS, WE ENHANCED THE STORY DRIFT RATIO INDICATOR BY COMBINING IT WITH THE STRUCTURAL FAILURE PATH AND PROPOSED A NEW COMPREHENSIVE INDICATOR THAT CAN MORE ACCURATELY DESCRIBE THE SEISMIC BEHAVIOR OF THE STRUCTURE. THE NEW CONCEPT OF SEISMIC BEHAVIOR IS PROPOSED. THE SEISMIC WAVES USED IN THE ANALYSIS IN THIS ARTICLE ARE GENERATED BY THE HILBERT-HUANG TRANSFORMATION METHOD. THE FAILURE PATH OF THE STRUCTURE UNDER RANDOM SEISMIC WAVES IS CALCULATED BY THE WEIGHTED RANK-SUM RATIO METHOD. THE COMPREHENSIVE INDICATOR IS CHECKED ON THE MSCSS WITH OR WITHOUT LEAD-RUBBER BEARINGS AND TRADITIONAL MEGA-SUB STRUCTURE. THE CALCULATION RESULTS SHOW THAT THE STORY DRIFT RATIO ALONE CANNOT FULLY REFLECT THE DAMAGE OF STRUCTURES IN EARTHQUAKES. THE NEW INDICATOR COMBINED WITH THE FAILURE PATH CAN DESCRIBE THE SEISMIC BEHAVIOR OF THE MSCSS MORE COMPREHENSIVELY AND CAN BETTER ASSIST THE SEISMIC DESIGN AND OPTIMIZATION OF STRUCTURES.
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