高阻尼黏弹性橡胶连梁阻尼器力学性能试验研究  

Experimental study on high-damping viscoelastic rubber coupling beam damper

作　　者：王玉璋[1] 潘鹏[2] 邓开来[3] 高田友和 何飞[4] WANG Yuzhang PAN Peng DENG Kailai TAKADA Tomokazu HE Fei(Department of Civil Engineering, Tsinghua University, Beijing 100084, China Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Tsinghua University, Beijing 100084, China Department of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, China Sumitomo Riko Company Limited, Komaki Plant 4858550, Japan)

机构地区：[1]清华大学土木工程系,北京100084 [2]清华大学土木工程安全与耐久教育部重点实验室,北京100084 [3]西南交通大学桥梁工程系,四川成都610031 [4]日本住友理工株式会社,爱知县小牧市4858550

出　　处：《建筑结构学报》2017年第3期158-163,共6页Journal of Building Structures

基　　金：国家自然科学基金项目(51422809;51578314);北京市科技计划课题(Z161100001216015)

摘　　要：黏弹性橡胶阻尼器是一种兼具黏滞性和弹性两种特性的阻尼器,耗能能力良好,可以同时为结构提供附加刚度和附加阻尼。通过对高阻尼黏弹性橡胶连梁阻尼器进行循环加载试验,研究了其基本力学性能,分析了该阻尼器在低周疲劳加载和高周疲劳加载下的基本力学特性。研究结果表明:高阻尼黏弹性橡胶连梁阻尼器的耗能能力优良;该阻尼器的储存刚度、损失刚度、损失系数受变形幅值的影响较大,受加载频率影响较小;等效阻尼系数与频率呈现反比例函数关系;该阻尼器的基本力学性能在低周和高周疲劳加载下呈现出较明显的衰减。Viscoelastic rubber dampers provide both elasticity and viscidity, as well as satisfactory energy dissipation capacity, which could increase the stiffness and damping of the structures. In this study, tests on the high-damping viscoelastic rubber coupling beam damper were carried out, focusing on the basic mechanical properties of the damper, including the low and high cycle fatigue performance of the viscoelastic rubber damper. Major conclusions obtained from this study are as follows： the high-damping viscoelastic rubber coupling beam damper presents the satisfactory energy dissipation capacity; the storage stiffness, loss stiffness and loss coefficient are obviously affected by the loading amplitude, while the influence of loading frequency is rather negligible; the equivalent damping coefficient presented inversely-proportional relationship with loading amplitude and frequency. The mechanical properties of the damper exhibits notable degradation when subjected to low cycle and high cycle fatigue tests.

关 键 词：高阻尼 黏弹性橡胶 连梁阻尼器 疲劳试验 力学性能 

分 类 号：TU352.103[建筑科学—结构工程]