爆破地震波作用下底层框架砌体结构的弹塑性时程分析

Elasto-plastic time history analysis of hybrid masonry-frame structure subjected to blasting seismic waves

针对爆破地震波作用下建筑结构的安全评估问题,提出了利用弹塑性时程分析方法全面评估爆破地震波的安全度。通过合理选择框架砌体结构的计算模型和数值计算方法,对一在爆破地震波作用下的5层底层框架砌体结构进行了弹塑性时程算例分析,并将其与构造地震波作用下结构的动力反应进行了对比,全面评估了其安全性。

According to safety assessment of structures subjected to blasting-induced ground excitation, a time history analysis method was proposed to assess safety of blasting seismic waves. A elasto-plastic time-history numerical analysis of a five-story hybrid masonry- frame structure subjected to blasting seismic excitation is set up through adopting the numerical model of hybrid structure and computation method appropriately. At last, the obtained dynamic response is compared with its counterpart of tectonic seismic wave, and the safety assessment is also made based on these results and analyses.