SMA-橡胶复合支座的力学性能及在桥梁结构中的应用研究  

Mechanical property and applied study of SMA-rubber bearing for bridge structures

作　　者：苗晓瑜[1,2] 王社良[2] 唐娴[3] 翁光远[3] 

机构地区：[1]长安大学建筑工程学院,陕西西安710064 [2]西安建筑科技大学土木工程学院,陕西西安710055 [3]陕西交通职业技术学院公路工程系,陕西西安710018

出　　处：《西安建筑科技大学学报（自然科学版）》2012年第1期28-32,共5页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51178388;10972168);教育部高等学校博士点基金资助项目(200807030002);陕西省教育厅重点实验室科研计划项目(09JS022);陕西工业攻关项目(2008K07-31)

摘　　要：利用形状记忆合金材料(SMA)在相变伪弹性阶段的工作原理与力学性能,建立其在荷载和温度等因素作用下的本构模型;针对桥梁结构在外界条件激励作用下的受力特性,制作成形状记忆合金与橡胶复合桥梁支座,形成新的结构隔震装置.该装置具有自复位功能,可以改变桥梁结构中普通橡胶支座变形过大,不能恢复的缺陷,避免桥梁结构过早地出现病害.为SMA-橡胶桥梁复合支座的深入研究和广泛应用提供了理论基础.With the working principle and mechanical properties of shape memory alloy（SMA） in the pseudo-elastic state,the constitutive model is established considering the role of the external load and temperature.According to the force characteristics of the bridge structure under external incentive,The SMA-rubber bridge bearing which forms a new structure isolation device is made.This device has self-reset function and changes the bridge structure of defects where the deformation of the normal rubber bearing are too large and can not be restored.In this way,the bridge structure diseases can be avoided as early as possible.Meanwhile the analysis and research of the paper provides a theoretical basis for the depth research and extensive application of SMA-rubber bearing.

关 键 词：形状记忆合金 桥梁支座 隔震支座 自复位调节器 

分 类 号：TU313[建筑科学—结构工程]