【摘要】 对一幢带阻尼器高层方钢管混凝土框架结构的1/15缩尺模型进行了模拟地震振动台试验,深入研究了该结构的动力特性和地震反应特征,并通过比较考察了阻尼器的作用效果。结果表明:该结构未出现明显的薄弱层,结构整体扭转反应相对较小,阻尼器发挥了较好的消能减震作用,但结构抗侧刚度较小,层间弹塑性位移角未能满足规范对消能减震结构所规定的宜采用的限值(1/80),结构设计中已根据试验结果进行了改进,满足了规范要求。更多还原

【Abstract】 In this paper,a 1/15 scale model of concrete filled square steel tubular frame structure with dampers is tested on shaking table to study the dynamic characteristics and seismic responses,especially the effect of dampers on seismic behaviors of the structure.Test results show that the structure has no obvious weak story,the torsion of the whole structure is small,and the dampers play an important role in energy dissipation,but the lateral stiffness of the structure is not enough,the elasto-plastic interstory drift does not meet the code requirement(1/80) for energy dissipation structures.According to the test results,the structural design is improved to meet the code requirement.更多还原