论文部分内容阅读
自复位防屈曲支撑特殊的恢复力模型使得安装有这种支撑的结构在地震作用下的反应与传统结构大不相同,因此开展此种结构抗震性能的研究十分必要。该文首先根据较高的性能目标提出一种简单且足够精确的自复位防屈曲支撑结构的恢复力模型;然后结合单自由度自复位防屈曲支撑体系的运动方程确定影响该种结构地震位移反应(即最大非线性位移及位移比谱)的所有独立参数;并证明了无刚度和无强度退化结构的非线性位移比与地震动的幅值无关。最后通过两个例子证明了该文的结论。
Since the special restoring force model of self-reset buckling support makes the structure with this kind of support react differently under earthquake than traditional structure, it is necessary to study the seismic performance of this kind of structure. In this paper, a simple and accurate restoring force model of self-retaining buckling brace is proposed based on the high performance target. Then, the motion response of the self-restoring buckling brace system (Ie, the maximum nonlinear displacement and displacement ratio spectrum). It is also proved that the nonlinear displacement ratio of the non-stiffness and non-strength-degenerated structure is independent of the magnitude of the ground motions. Finally, two examples prove the conclusion of this paper.