钢铅组合耗能器力学性能试验研究  

EXPERIMENTAL STUDY OF MECHANICAL PROPERTIES OF STEEL-LEAD MIXED DAMPERS

作　　者：王铁英[1] 王艳武[1] 王焕定[1] 张永山[2] 

机构地区：[1]哈尔滨工业大学土木工程学院,哈尔滨150090 [2]广州大学土木工程学院,广州510405

出　　处：《工程力学》2005年第2期149-154,共6页Engineering Mechanics

基　　金：北京工业大学重点实验室基金资助项目

摘　　要：为了设计具有竖向耗能能力的抗倾覆装置,介绍了一种钢铅组合耗能器。通过对其静力、动力、电液伺服动静万能试验机实验结果的分析,表明该阻尼器能够使钢铅两种材料协同工作、共同耗能,具有制作工艺简单,能够满足位移小、阻尼大,耗能稳定的要求。通过分析还给出了耗能器的力学性能和恢复力模型。对大高宽比隔震结构的仿真计算分析表明,安装钢铅组合耗能器的抗倾覆装置具有一定的耗能能力,并能够避免结构倾覆。For design of overturn-resistant equipment with vertical energy dissipation, a steel-lead mixed damper is designed. Tensile and cyclic loading tests are performed to study the mechanical properties of the damper. Results show that the bi-material damper can work efficiently to dissipate energy. Based on the results, the hysteretic curve is given and the restoring model is set up. A base-isolated structure with a large height-to-width ratio is analyzed. The result indicates that the steel-lead mixed damper can dissipate energy and avoid overturn of structure.

关 键 词：防灾减灾 结构抗震 试验研究 钢铅组合耗能器 滞回曲线 恢复力模型 

分 类 号：P315.9[天文地球—地震学]