【摘要】 针对厦门时代广场商业区这一复杂连体顶托一网架的环形建筑采用整体建模方法,分别进行了水平两方向多遇地震和罕遇地震作用下的非线性动力时程计算及分析,并与无连体结构进行了对比研究。整体模型的动力分析结果表明,连廊与主体之间组合隔震系统后,连廊的滑动端平均滑动距离的减震效果自下而上逐渐显著;各单体建筑楼层剪力由于连廊与顶部网架的动力影响,底部两层出现楼层剪力放大,但其余楼层剪力明显减小;网架与托柱之间采用柱顶组合隔震系统后,网架柱底总剪力减震效果极为显著,底部剪力分布更均匀,对调整下部结构内力分布,减小结构在动力作用下的反应是显著的。更多还原

【Abstract】 In this paper,the nonlinear dynamic analysis of the total structures model of xia’men time squares and its four parts of building which is conneted by three bridges aspectively,carried out under frequent earthquake and rare earthquake in two horizental direction and the calculation results of the total structures and its four parts of building are compared.The result shows that from bottom to top floor,the spiding displacements of the three bridges are gradually reduced,the floor shear force of the four parts of builing is also reduced except for the two base shear force in bottom floor because of the combined isolation system adopted between the main buildings and the connected bridges;the base shear force of the whole space grid structures’s supporting columns is dramaticlly reduced because of the combined isolation system adopted between space gird struture and its supporting columns.更多还原