隔震橡胶支座受弯力学性能研究（英文）  

Bending mechanical property of elastomeric isolation bearings

作　　者：沈朝勇[1] 马玉宏[1] 黄襄云[1] 陈洋洋[1] 刘杨[1] 林佳[1] 

机构地区：[1]广州大学工程抗震研究中心,广东广州510405

出　　处：《广州大学学报（自然科学版）》2015年第5期34-43,共10页Journal of Guangzhou University:Natural Science Edition

基　　金：National Basic Research Program of China(973 2011CB013606);the twelfth-Five National Support Plan Projects(2012BAJ07B02);Nation Union Fund of China(1334209)and the National Science Foundation of China(91315307-07)

摘　　要：采用精细有限元分析方法对隔震橡胶支座在压弯、纯弯和拉弯荷载作用的应力及变形特性进行了研究,并与具有相同尺寸混凝土柱的特性进行了对比研究.同时对一些影响因压弯荷载支座所产生的水平位移的因素进行了研究.研究表明,无论是在压弯或拉弯荷载作用下,支座内部都会产生明显的应力集中.除了支座中部孔径大小对支座水平位移幅度影响不大外,其他如支座直径、内部橡胶的剪切模量、内部橡胶总厚度及内部钢板厚度均对其有较大的影响.In this paper,stress and deformation characteristic of rubber bearing under pure-bending,press-ben-ding and tension-bending had been investigated,concrete column with the same size as the rubber bearing had been listed to compare.Some factors which might affect the magnitude of horizontal displacement of rubber bear-ing caused by press-bending load had been investigated.Analysis shows that there is a significant stress concen-tration in the rubber bearing,whether under the press-bending or tension-bending.Except the diameter of cen-tral hole,there are many factors which have much more effect on the magnitude of horizontal displacement,such as the diameter of rubber bearing,shear modulus of inner rubber,total thickness of inner rubbers,thickness of the steel shim plate.

关 键 词：隔震橡胶支座 压弯 拉弯 受弯性能 应力集中 水平位移 

分 类 号：TU317.1[建筑科学—结构工程] TU352.1