XIONG, QILIN, A DEPARTMENT OF MECHANICS, HUAZHONG UNIVERSITY OF SCIENCE & TECHNOLOGY, 1037 LUOYU ROAD, WUHAN 430074ϼŒCHINA B HUBEI KEY LABORATORY OF ENGINEERING STRUCTURAL ANALYSIS AND SAFETY ASSESSMENT, 1037 LUOYU ROAD, 430074, WUHAN, CHINA, China