[1]马玉宏,李艳敏,赵桂峰,等.基于热老化作用的橡胶隔震支座力学性能时变规律研究[J].地震工程与工程振动,2017,01(05):038-44.[doi:10.13197/j.eeev.2017.05.38.mayh.004]
 MA Yuhong,LI Yanmin,ZHAO Guifeng,et al.Research on the time-dependent law of mechanical properties for the rubber isolation bearings based on thermal aging effect[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2017,01(05):038-44.[doi:10.13197/j.eeev.2017.05.38.mayh.004]
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基于热老化作用的橡胶隔震支座力学性能时变规律研究
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《地震工程与工程振动》[ISSN:/CN:]

卷:
01
期数:
2017年05期
页码:
038-44
栏目:
论文
出版日期:
2017-10-01

文章信息/Info

Title:
Research on the time-dependent law of mechanical properties for the rubber isolation bearings based on thermal aging effect
作者:
马玉宏1 李艳敏1 赵桂峰2 罗佳润1
1. 广州大学 工程抗震研究中心, 广东 广州 510405;
2. 广州大学 土木工程学院, 广东 广州 510006
Author(s):
MA Yuhong1 LI Yanmin1 ZHAO Guifeng2 LUO Jiarun1
1. Earthquake Engineering Research & Test Center, Guangzhou University, Guangzhou 510405, China;
2. School of Civil Engineering, Guangzhou University, Guangzhou 510006, China
关键词:
热老化隔震支座力学性能时变规律
Keywords:
thermal agingisolation bearingmechanical propertytime-dependent law
分类号:
P315.9
DOI:
10.13197/j.eeev.2017.05.38.mayh.004
摘要:
在对近海桥梁橡胶隔震支座和橡胶材料进行老化试验的基础上,分析橡胶材料参数随老化作用的时变规律,进而采用ABAQUS有限元软件对橡胶隔震支座的力学性能进行了模拟分析,得到了橡胶隔震支座力学性能时变规律。结果表明:老化试验前和老化试验20 d (折合时间环境40年)后的试验结果和有限元分析水平刚度误差分别为5.29%(未考虑温度修正)、10.96%(未考虑温度修正);老化试验前和老化20天后竖向刚度误差分别为3.01%、-7.88%,上述误差值均在可接受范围内,因此,由橡胶材料参数随老化作用的时变规律通过有限元分析得出的橡胶支座力学性能时变规律结果较可靠,本文的研究内容可为橡胶隔震支座老化性能的研究及桥梁结构全寿命抗震性能分析提供理论依据。
Abstract:
Based on thermal aging test of rubber material and rubber isolation bearings for offshore bridges, the time-dependent law of rubber material parameters with the aging effect was obtained and verified. By use of the time-dependent law of rubber material, the mechanical properties of rubber isolation bearings were simulated using ABAQUS. Further, the time-dependent law of isolation bearing mechanical property was summarized. Study result shows that:the deviations of the simulation results of before and after aging test and the corresponding test results can be seen as follows:the deviations of horizontal stiffness before and after ageing are 5.29%(no considering temperature correction) and 10.96%(no considering temperature correction) respectively; the deviations of vertical stiffness before and after ageing are 3.01% and -7.88% respectively. Considering the above deviations are acceptable, so the time-dependent law of isolation bearing mechanical property summarized in this paper is reliable. This study can provide theoretical support for the study of rubber isolation bearings aging property and the design about bridges and other structures.

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备注/Memo

备注/Memo:
收稿日期:2016-11-25;改回日期:2017-01-09。
基金项目:国家自然科学基金项目(51578170,51678173);国家重点基础研究发展计划973项目(2011CB013606);国家自然科学基金高铁联合基金重点项目(U1334209);长江学者和创新团队发展计划项目(IRT13057);广州市科技计划项目及市属高校科技计划项目(201707010295,1201421152)
作者简介:马玉宏(1972-),女,研究员,博士,主要从事结构隔减震及防震减灾技术研究E-mail:myhzth@gzhu.edu.cn
更新日期/Last Update: 2017-10-25