一种摇摆式钢筋混凝土框架节点刚度取值研究

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (13) : 195-199.

论文

鲁亮1 刘霞1? 陈俊杰2

作者信息 +

Parameter Research of Joints Stiffness in a Rocking Reinforced Concrete Frame

LU Liang 1 LIU Xia1 ?CHEN Jun Jie2

Author information +

文章历史 +

摘要

研究了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

Parameter research of joints stiffness in a rocking reinforced concrete frame is performed in this paper. Firstly, the finite element model of the rocking reinforced concrete frame is established and verified by the shaking table test. In addition, the method of time-history analysis is performed to investigate the dynamic responses of structure under different conditions, i.e., relative stiffness ratio of nine kinds along with ten earthquake waves. Finally, the peak inter-story drift and peak inter-story shear force of structure are studied using ten different ground motions for time-history dynamic analysis, and are compared by two coefficients; the inter-story drift amplification coefficient and the base earthquake-reduction coefficient. Consequently, the results show that the suitable range of relative stiffness ratio is 0.01 to 0.25.

导出引用

鲁亮1 刘霞1? 陈俊杰2. 一种摇摆式钢筋混凝土框架节点刚度取值研究[J]. 振动与冲击, 2015, 34(13): 195-199

LU Liang 1 LIU Xia1?CHEN Jun Jie2. Parameter Research of Joints Stiffness in a Rocking Reinforced Concrete Frame[J]. Journal of Vibration and Shock, 2015, 34(13): 195-199

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