水平位移加载方式对高阻尼橡胶支座力学性能的影响  

Influence of Lateral Displacement Loading on Mechanical Property of High Damping Rubber Bearing

作　　者：王建强[1] 李政[1] 赵卓[2] 赵军[1] 

机构地区：[1]郑州大学土木工程学院,郑州市450001 [2]宁波工程学院建筑工程学院,宁波市315211

出　　处：《公路》2016年第2期73-76,共4页Highway

基　　金：国家自然科学基金项目;项目编号U1204502;河南省重点科技攻关项目;项目编号102102210062;河南省高校科技创新团队项目;项目编号151RTSTHN026

摘　　要：对高阻尼橡胶支座进行了压剪力学性能试验,研究了不同水平位移加载顺序和加载频率对支座力学性能的影响。结果表明,水平位移加载顺序对支座屈服力和等效阻尼比的影响较小,水平位移递增加载时支座的屈服后刚度和水平等效刚度均明显大于递减加载时支座的性能;支座的屈服力、屈服后刚度和水平等效刚度随着水平位移加载频率的增大而增大,水平位移加载频率对支座等效阻尼比的影响较小。The compressive-shear tests to the high damping rubber bearing are carried out to study the influence of the lateral loading sequence and loading frequency on the mechanical property of the bearings. The results show that the lateral loading sequence has little effect on the yield force and the equivalent damping ratio of the bearing, and as the lateral displacements of the bearing increasing, the post-yield stiffness and the horizontal equivalent stiffness are bigger than those when the lateral displacement inclined. As the lateral loading frequency increasing, the yield force, the post-yield stiffness and the horizontal equivalent stiffness of the bearing increase, and the lateral loading frequency has little effect on the equivalent damping ratio of the bearing.

关 键 词：高阻尼橡胶支座 力学性能 加载顺序 加载频率 影响 

分 类 号：U443.361[建筑科学—桥梁与隧道工程]