采动区建筑物抗变形隔震装置的力学性能分析
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摘要
介绍了采动区建筑物抗变形隔震装置的基本构成,并基于地震工程学和开采沉陷学的原理对抗变形隔震支座进行了理论分析,通过实验对采动区抗变形隔震支座在低周反复荷载作用下的滞回耗能特性进行了分析。结果显示,在低周循环荷载作用下采动区抗变形隔震支座的滞回耗能曲线饱满,表明其良好的自复位、耗能能力和变形能力大、稳定的滞回性能等特点,说明抗变形隔震支座的传力机制明确、构造比较合理。隔震支座充分利用了铅芯橡胶、粘滞阻尼器和蝶形弹簧三种不同的耗能材料和耗能机制,其适宜的水平隔震刚度和阻尼耗能性能、竖向能够抵抗不均匀沉降,充分体现了其良好的整体稳定性。该抗变形隔震支座有效的改善了采动区建筑抵抗煤矿采动损害和震害的能力,为采动区建筑物保护提供科学方法和依据。
Basic composition of building isolation resistance to deformation device in mining area is introduced in this paper,and theoritical analysis of resistance to deformation isolation bearing was carried out based on earthquake engineering and mining subsidence principles.Through experiments,the hysteretic energy dissipation characteristicsthen of resistance to deformation isolation bearing of building in mining area subjected to low cyclic loading was analysed.Results show that the hysteresis energy dissipation curve of resistance to deformation isolation bearing is full and plump under low cyclic loading,which indicates its good self-reset,energy dissipation capacity,deformation capacity,stable hysteretic behavior and other characteristics,which also indicates its clear force transmission mechanism and reasonable structure.The isolation bearing full uses following three different kinds of energy dissipation material and energy dissipation mechanism: rubber bearing with lead core,viscous dampers and wing spring.Its appropriate level isolation stiffness and damping dissipation characteristics and its ability to resistance the uneven settlement in vertical direction fully reflect good overall stability.This resistance to deformation isolation bearing effectively improves building capacity of resistance to damage caused by coal mining and earthquake in mining area,therefore provides a scientific method and basis for building protection in mining areas.
Basic composition of building isolation resistance to deformation device in mining area is introduced in this paper,and theoritical analysis of resistance to deformation isolation bearing was carried out based on earthquake engineering and mining subsidence principles.Through experiments,the hysteretic energy dissipation characteristicsthen of resistance to deformation isolation bearing of building in mining area subjected to low cyclic loading was analysed.Results show that the hysteresis energy dissipation curve of resistance to deformation isolation bearing is full and plump under low cyclic loading,which indicates its good self-reset,energy dissipation capacity,deformation capacity,stable hysteretic behavior and other characteristics,which also indicates its clear force transmission mechanism and reasonable structure.The isolation bearing full uses following three different kinds of energy dissipation material and energy dissipation mechanism: rubber bearing with lead core,viscous dampers and wing spring.Its appropriate level isolation stiffness and damping dissipation characteristics and its ability to resistance the uneven settlement in vertical direction fully reflect good overall stability.This resistance to deformation isolation bearing effectively improves building capacity of resistance to damage caused by coal mining and earthquake in mining area,therefore provides a scientific method and basis for building protection in mining areas.
引文
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[6]刘书贤,魏晓刚,刘魁星等.基于隔震技术的采动区半主动双重保护装置减震分析[J].土木工程与管理学报,2011,28(4):1-5(LIU Shuxian,WEI Xiaogang,LIU Kuixing,et al.Seismic Response Analysis of Semi-ActiveDevice of Double Protection in Mining Area Based on Isolation Technology[J].2011,28(4):1-5(in Chinese))
[7]郑玉莹,夏军武等.采动区框架结构主动抗变形支座及其力学性能研究[J].山东科技大学学报(自然科学版),2012,31(1):62-64(ZHENG Yuying,XIA Junwu,et al.Study On Actively Anti-Deformational Pedestal withStructure in Mining Area and Its Mechanical Performance[J].Journal of Shandong University of Science andTechnology(Natural Science Edition),2012,31(1):62-64(in Chinese))
[8]邓喀中,郭广礼,谭志详.采动区建筑物地基、基础协同作用特性研究[J].煤炭学报,2001,26(6):601-605(DENG Kazhong,GUO Guangli,TAN Zhixiang.Study on the properties of coordination of the base andfoundation of the building above mining subsidence areas[J].Journal of China Coal Society,2001,26(6):601-605(in Chinese))
[9]Kuixing LIU,Xiaogang WEI,Shuxian LIU.The Impact and Damage Mechanism Analysis of Building Caused byExploiting Underground Coal[C].International Workshop on Architecture,Civil and Environmental Engineering(ACEE 2011),2011,8:6982-6985.
[10]刘书贤,刘书会,魏晓刚,魏亚强.采动区地震-开采沉陷变形对建筑耦合作用[J].辽宁工程技术大学学报(自然科学版),2011,30(S):92-94(LIU Shuxian,LIU Shuhui,WEI Xiaogang,WEI Yaqiang.Couplingmechanism analysis of earthquake and residual deformation of mining subsidence of the building in mining area[J].Journal of Liaoning Technical University(Natural Science Edition),2011,30(S):92-94(in Chinese))
[11]Malekzadeh M,Taghikhany T.Adaptive behavior of double concave friction pendulum bearing and its advantagesover friction pendulum systems[J].Scientia Iranica March,Transaction A:Civil Engineering,2010,17(2):81-88.
[2]梁为民,郭增长.采动区建筑物保护研究现状及展望[J].焦作工学院学报,2000,19(3):86-89(LIANGWeimin,GUO Zengzhang.Review and prospect on the technology of the buildings protection of the mining surface[J].Journal of Jiaozuo Institute of Technology,2000,19(3):86-89(in Chinese))
[3]MORISHITA MASAKI,INOUE KAZUHIKO,FUJITATAKAFUMI.Development of Three-DimensionalSeismic Isolation Systems For Fast Reactor For Earthquake[J].Joural Of Japan Association For EarthquakeEngineering,2004,4(3)(Special Issue):305-310.
[4]Tsai S,Chen W S,Chiang T C,et al.Component and shaking Table tests for full-scale multiple friction pendulumsystem[J].Earthquake Engineering and Structural Dynamics,2006,35(11):1653-1675.
[5]段敬民,丁安民,钱永久.矿山塌陷区抗采动可移动及升降点式基础房屋设计理论研究[J].煤炭学报,2004,29(3):270-273(DUAN Jingmin,DING Anmin,QIAN Yongjiu.The theory study of resisting mining deformationof building with moving rise-fall dot foundation on mining cave-in areas[J].Journal of Coal Science&Engineering,2004,29(3):270-273(in Chinese))
[6]刘书贤,魏晓刚,刘魁星等.基于隔震技术的采动区半主动双重保护装置减震分析[J].土木工程与管理学报,2011,28(4):1-5(LIU Shuxian,WEI Xiaogang,LIU Kuixing,et al.Seismic Response Analysis of Semi-ActiveDevice of Double Protection in Mining Area Based on Isolation Technology[J].2011,28(4):1-5(in Chinese))
[7]郑玉莹,夏军武等.采动区框架结构主动抗变形支座及其力学性能研究[J].山东科技大学学报(自然科学版),2012,31(1):62-64(ZHENG Yuying,XIA Junwu,et al.Study On Actively Anti-Deformational Pedestal withStructure in Mining Area and Its Mechanical Performance[J].Journal of Shandong University of Science andTechnology(Natural Science Edition),2012,31(1):62-64(in Chinese))
[8]邓喀中,郭广礼,谭志详.采动区建筑物地基、基础协同作用特性研究[J].煤炭学报,2001,26(6):601-605(DENG Kazhong,GUO Guangli,TAN Zhixiang.Study on the properties of coordination of the base andfoundation of the building above mining subsidence areas[J].Journal of China Coal Society,2001,26(6):601-605(in Chinese))
[9]Kuixing LIU,Xiaogang WEI,Shuxian LIU.The Impact and Damage Mechanism Analysis of Building Caused byExploiting Underground Coal[C].International Workshop on Architecture,Civil and Environmental Engineering(ACEE 2011),2011,8:6982-6985.
[10]刘书贤,刘书会,魏晓刚,魏亚强.采动区地震-开采沉陷变形对建筑耦合作用[J].辽宁工程技术大学学报(自然科学版),2011,30(S):92-94(LIU Shuxian,LIU Shuhui,WEI Xiaogang,WEI Yaqiang.Couplingmechanism analysis of earthquake and residual deformation of mining subsidence of the building in mining area[J].Journal of Liaoning Technical University(Natural Science Edition),2011,30(S):92-94(in Chinese))
[11]Malekzadeh M,Taghikhany T.Adaptive behavior of double concave friction pendulum bearing and its advantagesover friction pendulum systems[J].Scientia Iranica March,Transaction A:Civil Engineering,2010,17(2):81-88.
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