期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：304
期号：4
页码：1-11
DOI：10.1088/1755-1315/304/4/042034
出版社：IOP Publishing
摘要：The multi-point random ground motion is artificially synthesized based on the triangular series method. Then the variation law and damping effect of vertical seismic response of large span isolated structures with different spans are studied respectively, under the action of both frequent earthquake and rare earthquake. The results show that in some areas of large span isolated structures, the vertical seismic responses are larger than those of non-isolated structures, under the multi-dimensional multi-point seismic input. The damping effects of large span isolated structures under rare earthquake are better than those under frequent earthquake. The area that is near the supports is prone to a large increase in response after isolation, so there should be strengthened during the engineering design.
