基础隔震结构水平地震作用改进算法-建筑结构 关键词］基础隔震结构；水平地震作用；改进算法；规范 [gap=957]Keywords:base isolated structures; horizontal earthquake action; improved method; code
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The direction which is the most susceptible to horizontal earthquake action is perpendicular to the bridge axis.
水平地震作用的最敏感方向垂直桥的轴线。
Considering the deformation of short cylindrical tank under the horizontal earthquake action, the shear effect is the main factor, therefore, it might be anal zed by shear beam deformation theory.
考虑到在水平地震作用下短圆柱形容器的变形，剪切效应起主导作用，因而可用剪切梁变形理论来近似地代替。
The horizontal shear was taken as the main earthquake action in earthquake response analysis for subway tunnel.
在以往地铁隧道的地震反应分析中，地震作用一般以水平剪切为主；
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