一种摇摆式钢筋混凝土框架节点刚度取值研究

发布时间：2019-07-27 12:58

【摘要】：研究一种摇摆式钢筋混凝土框架节点刚度的取值方法。首先,建立了摇摆式钢筋混凝土框架的有限元模型并进行了地震模拟振动台试验验证;其次,选择10条地震动曲线,研究9种不同节点相对刚度比情况下结构的动力时程响应分析;最后,利用层间位移放大系数、基底减震系数比较不同地震动作用下结构的峰值层间位移、层间剪力响应。结果表明:节点相对刚度比S取0.01~0.25为宜。
[Abstract]:A method for determining the stiffness of swing reinforced concrete frame joints is studied. Firstly, the finite element model of swinging reinforced concrete frame is established and verified by shaking table test. Secondly, 10 ground motion curves are selected to study the dynamic time history response analysis of structures under 9 different relative stiffness ratios of joints. Finally, the peak interstory displacement and interstory shear response of structures under different ground motion are compared by using the magnification factor of interstory displacement and the damping coefficient of basement. The results show that the relative stiffness ratio S of the joint is 0.01 鈮，

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