摘要
设计了一种椭圆型耗能器,采用ABAQUS软件对9组不同构造参数的椭圆型耗能器性能进行参数模拟分析,研究椭圆型耗能器的高度、钢板厚度、弧形深度、钢板宽度以及椭圆弧形钢板局部削弱等对椭圆型耗能器性能的影响.研究结果表明:椭圆型耗能器滞回曲线稳定、饱满,塑性耗能能力强;随着椭圆型耗能器高度减小、弧深减小或钢板厚度增加,椭圆型耗能器初始刚度、屈服后刚度和屈服力增大,屈服位移降低;钢板宽度增加,椭圆型耗能器初始刚度、屈服后刚度和屈服力增大,对屈服位移没有影响;局部削弱椭圆型耗能器比不削弱椭圆型耗能器具有更好的耗能效果.
9 different models were designed to research the bearing capacity and the hysteretic performance of the elliptic damper installed in the frame. The constructional parameter of the elliptic damper included the height, the thickness of the steel plate, the depth of the arc, the width of the steel plate and the local weakening forms. All models were carried out numerical simulation with ABAQUS. The analysis results showed that the elliptic damper had stable and full hysteretic curve and posed excellent energy dissipation capacity. As the height and arc depth of the elliptic dampers decrease or the thickness of steel plate increases, the initial stiffness, yield stiffness and yield force of elliptic dampers increase, while the yield displacement lowers down. As the width of steel plate increases, the initial stiffness, yield stiffness and yield force of elliptic dampers increase, while the yield displacement remains unchanged. When the plate of the elliptic damper was weakened partly, the elliptic damper showed better energy dissipation capacity.
出处
《广州大学学报（自然科学版）》
CAS
2012年第4期44-51,共8页
Journal of Guangzhou University:Natural Science Edition
基金
广东省自然科学基金研究团队项目(8351009101000001)
广州市高校"羊城学者"首席科学家科研项目(10A026S)资助
关键词
钢耗能器
力学性能
滞回耗能
mild steel damper
mechanical property
hysteretic energy dissipative
