变刚度钢管混凝土短柱隔震结构弹塑性动力分析  

Elasto-plastic Dynamics Analysis for the Structure with Variable Stiffness Base Isolator Made of Concrete-filled Steel Tubular Short Columns

作　　者：张玉良[1] 成世峰[1] 张铜生[1] 

机构地区：[1]清华大学土木工程系,北京100084

出　　处：《震灾防御技术》2006年第2期129-136,共8页Technology for Earthquake Disaster Prevention

摘　　要：采用HBTA2.5程序,对一变刚度钢管混凝土短柱隔震结构进行了弹塑性时程分析。分析结果表明,其隔震装置的水平变形和耗能能力可以大大减轻地震对结构的影响。提出钢管混凝土短柱隔震结构在工程应用将有很好的发展前景。Elasto-plastic dynamics analysis for the structure with variable stiffness base isolator made of CFST short columns is performed through the program HBTA2.5. The structure is assumed to be under bi-directional earthquake waves. According to the results, the seismic response of the structure is significantly reduced by the distortion and energy dissipation ability of the base-isolation system. Summarily, the variable stiffness base isolator with CFST short columns has good prospects in engineering practice.

关 键 词：变刚度 钢管混凝土短柱 隔震 HBTA2.5 

分 类 号：TU398.9[建筑科学—结构工程] TU352.12