高阻尼橡胶支座竖向刚度试验研究  

Experimental Study on Vertical Stiffness of High Damping Rubber Bearings

作　　者：王建强[1] 魏明明 李政[1] 刘耀东[1] 赵军[1] 

机构地区：[1]郑州大学土木工程学院,河南郑州450001 [2]郑州市公共交通总公司,河南郑州450002

出　　处：《建筑科学》2016年第3期46-49,共4页Building Science

基　　金：国家自然科学基金项目(U1204502);河南省重点科技攻关项目(102102210062);河南省高校科技创新团队(15IRTSTHN026)

摘　　要：对高阻尼橡胶支座的竖向刚度进行了试验研究,分析了支座竖向压应力和剪切应变对支座竖向刚度的影响。结果表明,高阻尼橡胶支座具有稳定的竖向承载能力和变形性能;在纯压状态下,支座的竖向刚度随着竖向压应力的增大近似呈线性增大;在偏压状态下,随着支座剪切应变的增大,在相同竖向压应力作用下支座的竖向刚度近似呈线性减小,并且在不同竖向压应力作用下,支座竖向刚度的减小幅度基本一致。The vertical stiffness tests of the high damping rubber bearing are carried out,the influence of the vertical pressure-stress and shear strain on the vertical stiffness of the bearings is studied. The results show that the high damping rubber bearings have a stable vertical bearing capacity and deformation property. Under the compressive state,the vertical stiffness of the bearings will increase linearly with the vertical pressure-stress increasing. Under the compressive-shear state,the vertical stiffness of the bearings will decrease linearly with the shear strain increasing at the same vertical pressure-stress. At the different vertical pressure-stress,the reducing amplitude of the vertical stiffness are basically identical.

关 键 词：高阻尼橡胶支座 竖向刚度 竖向压应力 剪切应变 试验研究 

分 类 号：TU352.1[建筑科学—结构工程]