高度可调摩擦摆隔震支座的力学性能  

Mechanical performance of an isolation bearing with height-adjustable friction pendulum

作　　者：杨海旭[1,2] 郭迅[2] 王海飙[1] 杨东晖 申童[1] 

机构地区：[1]东北林业大学土木工程学院,黑龙江哈尔滨150040 [2]中国地震局工程力学研究所,黑龙江哈尔滨150080 [3]黑龙江国煤矿山设备租赁有限责任公司,黑龙江哈尔滨150001

出　　处：《辽宁工程技术大学学报（自然科学版）》2012年第1期61-64,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：黑龙江省教育厅科学技术研究(指导)基金资助项目(12513034);中国博士后科学基金第五十批面上基金资助项目(2011M501080)

摘　　要：为了抗御强震动和基础不均匀沉降,研制出具有圆弧滑动面的新型高度可调摩擦摆隔震支座.通过滑动试验测定了可调节摩擦摆隔震支座的摩擦系数,在此基础上得到摩擦摆隔震结构的等效自振周期.理论分析证明:摩擦摆隔震支座的自振周期只和弧面半径R、摩擦系数μ、摩擦摆水平位移Dd有关,与结构质量等参数无关,具有良好的稳定性.高度可调摩擦摆隔震支座能够抗御强震动和基础不均匀沉降,并具有良好的自限、自复位功能和振动稳定性,无需附设阻尼向心机构,且在上部结构中不必考虑复杂的抗震措施.高度可调摩擦摆隔震支座结构简单,应用方便,宜在工程中推广应用.In order to overcome the problems with strong seismic motion and uneven settlement of foundation,a new adjustable friction pendulum system(AFPS) with slip spherical face has been developed in this study.The friction coefficient of AFPS is measured in slipping test.Based on the data from slipping test the equivalent natural vibration period of AFPS is determined.Theoretical analysis proves that the equivalent natural vibration period of AFPS is related with the radius of spherical face R,friction coefficient μ and horizontal displacement Dd.On the other hand,it is uncorrelated with other parameters especially the gravity of upper structure.Therefore,AFPS is very stable.The new AFPS can not only overcome strong vibration and uneven settlement of foundation,but also can self-restrain and self-reset.The system has an excellent stability to overcome vibration without additional damped centripetal mechanism,and complicated seismic fortification measures in upper structure.Since the AFPS is simple in installation and convenient in practical usage,it is suitable for a wide application.

关 键 词：摩擦摆 隔震支座 基础沉降 滑动试验 摩擦系数 自振周期 恢复力模型 力学性能 

分 类 号：TU352.12[建筑科学—结构工程]