三维隔震系统振动台实验研究
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摘要
针对目前隔震体系尚不能减小竖向地震反应的缺陷,提出并研制了采用碟形弹簧的竖向半主动隔震装置。竖向半主动隔震装置是由碟形弹簧和外套油缸组成的,且由电磁阀控制油缸内油体与外接蓄油箱内油体间的油路,可实现竖向半主动隔震控制,提出了竖向隔震控制的半主动策略,结合水平隔震支座可实现三维隔震。通过振动台地震模拟实验,验证了三维隔震体系的效能,该研究对高烈度地区隔震技术的改善具有应用参考价值。
In this paper,in view of the limitation that the preset base isolation system can not decrease the vertical seismic response,a kind of vertical semi-active isolated device with disk spring was developed.The vertical semi-active isolated device is made up of oil cylinder within disk spring and electromagnetic valve that controls the oil route between the oil cylinder and oil box,then achieves the vertical semi-active isolation,and draws up a semi-active control strategy suited to vertical semi-active isolated control.Combining vertical semi-active isolated device with horizontal isolated bearing can achieve three-dimensional isolation.The control efficiency of three-dimensional isolation system was validated through the shaking table tests,this research is a help to reform the isolation technique in a high seismic intensity zone.
In this paper,in view of the limitation that the preset base isolation system can not decrease the vertical seismic response,a kind of vertical semi-active isolated device with disk spring was developed.The vertical semi-active isolated device is made up of oil cylinder within disk spring and electromagnetic valve that controls the oil route between the oil cylinder and oil box,then achieves the vertical semi-active isolation,and draws up a semi-active control strategy suited to vertical semi-active isolated control.Combining vertical semi-active isolated device with horizontal isolated bearing can achieve three-dimensional isolation.The control efficiency of three-dimensional isolation system was validated through the shaking table tests,this research is a help to reform the isolation technique in a high seismic intensity zone.
引文
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[3]周福霖.工程结构减振控制[M].北京:地震出版社,1997.
[4]周正华,等.竖向地震动特征研究[J].地震工程于工程振动,2003,23(4):25-29.
[5]瞿伟廉,等.多层建筑结构水平剪扭-竖向地震反应的智能复合隔震控制[J].地震工程于工程振动,2003,23(5):187-195.
[6]杨迪雄,等.近断层脉冲型地震动作用下隔震结构地震反应分析[J].地震工程于工程振动,2005,25(4):119-124.
[7]孟庆利.基底隔震混合控制和三维隔震系统研究[D].哈尔滨:中国地震局工程力学研究所,2005.
[8]Iemura H,Takahashi Y,Ogawa K,et al.Hybrid earthquake loading tests of a frictional base isolation bearing with vertical motion[C]//Interna-tional Worksho Pon Mitigation of Seismic Efects on Transportation Structures.Taipei,1999:12-14.
[9]Nakajima K,lemura H,Takahashi Y,et al.Pseudo dynamic tests and Implementation of sliding bridge isolators with vertical motion[C]//12WCEE,Auckland,New Zealand,2000:1365-1372.
[10]Muraji M,Shimizu T,Esper P,et al.Anewtype of base-isolator:a vertical shock absorber[C]//Proc.of China-US.Millennium Symposiumof Earth.Engineering:Earth.Engin.Frontiers in the New Millennium.Beijing,2000.
[2]阎维明.房屋建筑减振控制理论和实验研究[R].国家地震局工程力学研究所博士后研究工作报告,LRZ966018,1998.
[3]周福霖.工程结构减振控制[M].北京:地震出版社,1997.
[4]周正华,等.竖向地震动特征研究[J].地震工程于工程振动,2003,23(4):25-29.
[5]瞿伟廉,等.多层建筑结构水平剪扭-竖向地震反应的智能复合隔震控制[J].地震工程于工程振动,2003,23(5):187-195.
[6]杨迪雄,等.近断层脉冲型地震动作用下隔震结构地震反应分析[J].地震工程于工程振动,2005,25(4):119-124.
[7]孟庆利.基底隔震混合控制和三维隔震系统研究[D].哈尔滨:中国地震局工程力学研究所,2005.
[8]Iemura H,Takahashi Y,Ogawa K,et al.Hybrid earthquake loading tests of a frictional base isolation bearing with vertical motion[C]//Interna-tional Worksho Pon Mitigation of Seismic Efects on Transportation Structures.Taipei,1999:12-14.
[9]Nakajima K,lemura H,Takahashi Y,et al.Pseudo dynamic tests and Implementation of sliding bridge isolators with vertical motion[C]//12WCEE,Auckland,New Zealand,2000:1365-1372.
[10]Muraji M,Shimizu T,Esper P,et al.Anewtype of base-isolator:a vertical shock absorber[C]//Proc.of China-US.Millennium Symposiumof Earth.Engineering:Earth.Engin.Frontiers in the New Millennium.Beijing,2000.
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