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通过对平面框架在地震作用下的弹性、非弹性动力反应分析结果的讨论 ,说明了框架中间层节点处可能形成的各种弯矩平衡方式 ,并根据框架的变形和受力特点 ,对这类节点处弯矩平衡方式发生变化的内在原因进行了分析。在讨论了影响中间层外节点和内节点处弯矩平衡方式发生变化的各因素的异同之后 ,基于可能形成的各种节点弯矩分布形式 ,分析了控制框架不同部位的柱在地震作用下不进入屈服的抗震设计方法。
By discussing the results of the elastic and inelastic dynamic response analysis of the plane frame under the earthquake, the various modes of moment balance that may be formed at the middle layer of the frame are illustrated. According to the deformation and force characteristics of the frame, The reason of the change of moment balance mode at node is analyzed. After discussing the similarities and differences of the factors that affect the moment balance between the outer nodes and the inner nodes of the middle layer, based on the possible forms of the moment distributions of various nodes, it is analyzed that the columns in different parts of the control frame are not affected by the earthquake Seismic design methods to yield.