隔震结构的柔性限位防护研究
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摘要
针对基础隔震体系在遭受强地震时隔震支座的失效问题,提出一种新的柔性防护限位装置,以此控制隔震支座的水平位移在安全范围内,从而达到保护隔震支座的目的。首先建立控制装置的ABAQUS实体有限元分析模型,研究控制装置的力学性能,获得控制装置的非线性力学模型,然后以一栋4层基础隔震体系仿真算例,分析地震作用下的抗震结构、基础隔震结构和设置限位装置的基础隔震结构的响应。仿真结果表明:柔性限位装置能够控制隔震支座的水平位移在安全范围内,从而确保结构的安全,同时同抗震结构相比,它的动力响应小于抗震结构;同隔震结构相比它的动力响应略大于隔震结构但对上部结构的影响不大。
For isolation bearing is invalid when the base isolation system is subjected to a strong earthquake, a new flexible inhibiting protective device is made to keep horizontal displacement of isolation bearing in safe range so as to protect isolation bearing. First, build ABAQUS solid finite element analysis model to control device to research mechanic property of control device and get non linear mechanic model, then analyze aseismic structure under earthquake, base isolation structure and set base isolation structure respond of inhibiting device by a simulation study of a 4 story base isolation system. The result shows that the flexible inhibiting device can control horizontal displacement of isolation bearing in safe range so as to keep the structure safe, as well as, compared with aseismic structure, its dynamic response is less than aseismic structure, its dynamic response is a little bigger than isolated structure with little affection to the upper structure.
For isolation bearing is invalid when the base isolation system is subjected to a strong earthquake, a new flexible inhibiting protective device is made to keep horizontal displacement of isolation bearing in safe range so as to protect isolation bearing. First, build ABAQUS solid finite element analysis model to control device to research mechanic property of control device and get non linear mechanic model, then analyze aseismic structure under earthquake, base isolation structure and set base isolation structure respond of inhibiting device by a simulation study of a 4 story base isolation system. The result shows that the flexible inhibiting device can control horizontal displacement of isolation bearing in safe range so as to keep the structure safe, as well as, compared with aseismic structure, its dynamic response is less than aseismic structure, its dynamic response is a little bigger than isolated structure with little affection to the upper structure.
引文
[ 1 ] 周福霖.工程结构减震控制[M].北京:地震出版社,1997.
[ 2 ] 韩淼,周锡元.基础隔震建筑软碰撞保护分析[J].建筑科学,1999,15(1):14-20.
[ 3 ] 叶献国,谢一可,李康宁.基础隔震结构在侧向碰撞下的地震反应分析[J].地震工程与工程振动,2008,28(4):155-171.
[ 4 ] 杨林,周锡元,苏幼坡,等.基础隔震建筑简化软碰撞保护与变刚度保护的对比分析[J].工程抗震与加固改造,2005,27 (5):37-44.
[ 5 ] 周杨,张亮泉,毛晨曦.近断层基础隔震结构软碰撞限位装置研究[J].山西建筑,2017,43(36):34-36.
[ 6 ] Nagarajaiah S,Sun Xiaohong.Base-isolated FCC Building:Impact Response in Northridge Earthquake[J].Journal of Structural Engineering,2001,127(9):1063-1075.
[ 7 ] 谢一可,叶献国.基础隔震结构的能量反应分析[J].合肥工业大学学报:自然科学版,2006,29(11):1425-1429.
[ 8 ] 熊仲明,黄汉英,虞子良,等.带限位装置的基础隔震结构反应谱研究[J].西安建筑科技大学学报:自然科学版,2017,49(2):172-178,191.
[ 9 ] 中华人民共和国住房和城乡建设部,中华人民共和国国家质量监督检验检疫局.建筑抗震设计规范:GB50011-2010[S].北京:中国建筑工业出版社,2010.
[10] 刘德稳,刘彦辉,盛冬发,等.考虑限位的层间隔震弹塑性地震响应分析[C]//第26届全国结构工程学术会议论文集.长沙:2017.
[11] 金锡平.隔震建构筑物限位防护装置试验与理论分析[D].西安:西安理工大学,2005.
[12] 党武斌.隔震结构的柔性限位防护研究[D].西安:西安理工大学,2017.
[13] 党育,杜永峰,李慧.基础隔震结构设计及施工指南[M].北京:知识产权出版社,2007.
[ 2 ] 韩淼,周锡元.基础隔震建筑软碰撞保护分析[J].建筑科学,1999,15(1):14-20.
[ 3 ] 叶献国,谢一可,李康宁.基础隔震结构在侧向碰撞下的地震反应分析[J].地震工程与工程振动,2008,28(4):155-171.
[ 4 ] 杨林,周锡元,苏幼坡,等.基础隔震建筑简化软碰撞保护与变刚度保护的对比分析[J].工程抗震与加固改造,2005,27 (5):37-44.
[ 5 ] 周杨,张亮泉,毛晨曦.近断层基础隔震结构软碰撞限位装置研究[J].山西建筑,2017,43(36):34-36.
[ 6 ] Nagarajaiah S,Sun Xiaohong.Base-isolated FCC Building:Impact Response in Northridge Earthquake[J].Journal of Structural Engineering,2001,127(9):1063-1075.
[ 7 ] 谢一可,叶献国.基础隔震结构的能量反应分析[J].合肥工业大学学报:自然科学版,2006,29(11):1425-1429.
[ 8 ] 熊仲明,黄汉英,虞子良,等.带限位装置的基础隔震结构反应谱研究[J].西安建筑科技大学学报:自然科学版,2017,49(2):172-178,191.
[ 9 ] 中华人民共和国住房和城乡建设部,中华人民共和国国家质量监督检验检疫局.建筑抗震设计规范:GB50011-2010[S].北京:中国建筑工业出版社,2010.
[10] 刘德稳,刘彦辉,盛冬发,等.考虑限位的层间隔震弹塑性地震响应分析[C]//第26届全国结构工程学术会议论文集.长沙:2017.
[11] 金锡平.隔震建构筑物限位防护装置试验与理论分析[D].西安:西安理工大学,2005.
[12] 党武斌.隔震结构的柔性限位防护研究[D].西安:西安理工大学,2017.
[13] 党育,杜永峰,李慧.基础隔震结构设计及施工指南[M].北京:知识产权出版社,2007.