
info@juzhikan.asia
1黑龙江大学建筑工程学院,黑龙江哈尔滨,150086;
2黑龙江省建筑安装集团有限公司,黑龙江哈尔滨,150086;
摘要:为研究异形钢结构在脉冲型地震作用下的抗震性能研究。现以一座极限馆作为研究对象,选取一组包含7条脉冲型地震动(PGM)以及对应的7条剔除速度脉冲分量的残余地震动(RGM)和一组7条非脉冲型地震动(NGM)作为地震输入,并将其调幅为0.11g并对其进行动力响应分析,通过数值模拟系统评估了地震动分量和断层位置对结构节点位移、最大杆件应力及最大支座反力的放大系数影响。结果表明:不同地震动分量和断层位置情况下,PGM和RGM对结构响应与NGM作用下的相应值之比不小于1,表明:PGM与RGM对结构动力响应具有放大效应;但地震动分量和断层位置对结构最大位移、最大杆件应力和最大支座反力的影响和相应放大系数影响较小。
关键词:近场脉冲地面运动;脉冲识别;单层球形网壳;非线性动力分析
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