双重挡块式分散抗震装置设计及实验研究  

Design and Experimental Study of Double-block Dispersive Anti-seismic Device

作　　者：秦凯[1] 王常峰[1] 周曼玲[1] 

机构地区：[1]烟台大学土木工程学院,山东烟台264005

出　　处：《城市道桥与防洪》2016年第12期67-70,89,共5页Urban Roads Bridges & Flood Control

基　　金：国家自然科学基金(51108220)

摘　　要：基于多个部件共同承担地震作用的思路,研究提出在活动支座墩上设置双重挡块式分散减震装置,使活动支座墩与固定支座墩一起承担部分地震作用。根据耗能构件的刚度及耗能要求,利用H型钢的承载能力和开孔钢板的耗能能力设计了两种耗能构件,并通过耗能构件的拟静载试验,得到了构件的力-位移滞回曲线。试验结果表明,耗能构件力-位移滞回曲线饱满,具有较好的耗能能力和承载能力,有限元分析时耗能构件可简化为双线性模型进行分析。Based on the idea of multiple components bearing the seismic action, the article proposes to set up a double-block dispersive anti-seismic device on the movable supporting pier so as to make the movable supporting pier bear the partial seismic action together with the fixed supporting pier. Considering the requirements of rigidity and energy dissipation, two kinds of energy dissipation component are designed by thebearing capacity of H-shaped steel and the energy dissipation capacity of holed steel plate. And the force-displacement hysteresis curve of the component is achieved by the pseudo static load test of energy dissipation components. The test result shows that the energy dissipation component has the good force-displacement hysteresis curve and has the better energy dissipation capacity and bearing capacity. The energy dissipation component can be simplified to the double linear model for the finite element analysis.

关 键 词：桥梁工程 双重挡块 静荷载实验 非线性时程分析 

分 类 号：U442.55[建筑科学—桥梁与隧道工程]