摘要
FPS支座一种具有广阔发展前景的减隔震支座,该支座可通过摩擦耗能,自复位等特性来消耗地震发生时传入结构体系的地震能量,从而在很大程度上降低结构地震动反应。但目前国内外针对曲线桥FPS支座的耦合受力问题,缺乏理论与实验相结合的精细化模拟方法。该文通过FPS支座双向加载拟静力试验,进而得到FPS支座的荷载-位移滞回曲线与摩擦耗能情况。并采用OpenSees软件对FPS支座进行数值模拟,将FPS支座试验与数值模拟结果进行分析对比,验证其准确性,得到了一种FPS支座的精细化模拟方法。
FPS support is a seismic isolation bearing with broad development prospects.The support can absorb the ground motion energy input of a structure during an earthquake by friction energy consumption and self-recentering characteristics,thus greatly reducing the structural seismic response.However,at present,there is a lack of a refined theoretical and experimental simulation method for the coupling force problem of curved bridge FPS bearings at home and abroad.In this paper,a quasi-static test is carried out by two-way loading of FPS bearings.The load-displacement hysteresis curves and frictional energy consumption of the FPS bearings are obtained.The OpenSees software is used to simulate the FPS bearings.The test results are compared with the numerical simulation results to verify the accuracy.A refined simulation method of FPS bearings is obtained.
作者
焦驰宇
马银强
刘陆宇
龙佩恒
侯苏伟
JIAO Chi-yu;MA Yin-qiang;LIU Lu-yu;LONG Pei-heng;HOU Su-wei(BUCEA, Beijing Advanced Innovation Center for Future Urban Design, Beijing 100044, China;BUCEA, Beijing Collaborative Innovation Center for Technology of Energy Saving and Emission Reduction, Beijing 100044, China;Tongji University, State Key Laboratory of Disaster Prevention in Civil Engineering, Shanghai 200092, China)
出处
《工程力学》
EI
CSCD
北大核心
2019年第B06期86-91,共6页
Engineering Mechanics
基金
北京市自然科学基金面上项目(8162012)
北京市优秀人才培养资助青年拔尖个人项目(2015000026833ZK05)
土木工程防灾国家重点实验室开放基金项目(SLDRCE-14-02)
建设部研究开发项目(2015-R2-039)
北京市教委科技计划面上项目(2013)(KM201310016007)
国家青年自然科学基金项目(51308027)
关键词
FPS支座
曲线桥
拟静力试验
数值模拟
滞回曲线
FPS support
curved bridge
quasi-static test
numerical simulation
hysteresis curve
