高层住宅建筑结构抗震性能评估仿真

摘要

对高层住宅建筑结构的抗震性能评估,能够使得高层建筑结构柱遭遇地震作用下满足相应性能安全要求.对高层建筑结构的抗震性能的评估,需要计算建筑结构柱体系总的耗散应变能,获得建筑结构柱的损伤指数,完成对建筑结构的抗震性能评估.传统方法采用有限元软件对高层住宅建筑结构柱进行静力弹塑性分析,但忽略了计算建筑结构柱的损伤指数,导致评估精度偏低.提出新的高层住宅建筑结构柱抗震性评估方法,首先计算建筑结构柱的抗震能力指标,包括建筑结构柱内竖向构件的强度指标、延性指标,以及建筑结构柱竖向构件的水平抗侧承载力等;根据疲劳寿命曲线建立高层住宅建筑结构柱累积损伤模型,计算建筑结构柱体系总的耗散应变能和建筑结构柱的损伤指数;最后根据建筑结构柱的损伤指数值对抗震性进行评估.仿真结果表明,所提方法能够获得更加理想的抗震性评估结果.%This article proposes a method for shock resistance evaluation of building structure column of new high -rise residence.Firstly,our research calculated index of shock resistance ability of the structure column,including intensity index,ductility index,and horizontal resistance to lateral load-bearing capacity of its vertical component,and then built model of accumulated damage according to fatigue life curve.Moreover,the research calculated general dissipation strain energy and damage index of the structure column.Finally,we carried out evaluation for shock resistance on basis of exponential value of damage of the structure column.Simulation results show that the method can obtain more ideal result of shock resistance evaluation.