针对钢筋混凝土横向框排架、纵向框架-剪力墙结构的某火力发电厂主厂房,建立此类不规则结构在双向水平地震作用下的振型分解反应谱方法。建立不同形式地震波作用下的结构空间整体计算模型,通过弹塑性时程分析,分别进行结构单向及水平双向地震反应分析,统计单双向地震作用效应比值,对抗震规范中的地震效应组合公式进行修正,获得了具有实用价值和理论意义的成果。
Under two-dimensional earthquakes,the seismic response spectrum method of a large-scale thermal power plant s main building with frame-bent in the transverse direction and frame-shear wall in the longitudinal direction is set up.In the paper,the elastic-plastic time history analyses of the space model under the single-dimensional and two-dimensional earthquakes are performed.The ratios of seismic effect under two-dimensional seismic action to single-dimensional seismic action are counted,and the combination...