近断层地震作用下基础隔震层弹簧限位振动台试验研究
|
摘要
近断层脉冲型地震作用下基础隔震结构隔震层会产生过大变形,导致隔震支座侧倾失稳,隔震体系破坏。本文设计制作了一个3层基础隔震钢框架试验模型与三类钢弹簧软碰撞限位器,进行了近断层脉冲型地震作用下基础隔震层软碰撞限位振动台模型试验。试验表明,弹簧限位器具有很好的弹性性能,近断层地震作用下基础隔震层软限位可有效控制隔震层变形,隔震结构体系减震效果良好。
The near-field pulse-type ground motion will bring about large deformation of base isolation layer.The isolation bearings will buckle instability,and the isolation system will be destroyed.Three spring limiting devices are designed and tested.The test results show that the devices own favorable elastic properties.A 3-story base isolation frame model is made of steel.The shaking table model tests are carried out under near-field ground motion whose isolation layer is protected by spring limiting devices.The base isolation layer obtains desired results of soft limiting deformation.The effect of limiting isolation system mitigating earthquake hazard is still very well.
The near-field pulse-type ground motion will bring about large deformation of base isolation layer.The isolation bearings will buckle instability,and the isolation system will be destroyed.Three spring limiting devices are designed and tested.The test results show that the devices own favorable elastic properties.A 3-story base isolation frame model is made of steel.The shaking table model tests are carried out under near-field ground motion whose isolation layer is protected by spring limiting devices.The base isolation layer obtains desired results of soft limiting deformation.The effect of limiting isolation system mitigating earthquake hazard is still very well.
引文
[1]刘启方,袁一凡,金星,等.近断层地震动的基本特征[J].地震工程与工程振动,2006,26(1):1~10Liu Qi-fang,Yuan Yi-fan,Jin Xing,et al.BasicCharacteristics of Near-fault Ground Motion[J].Earthquake Engineering and Engineering Vibration,2006,26(1):1~10(in Chinese)
[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):14~20Han Miao,Zhou Xi-yuan.Analysis of Soft CollisionSafety for Base Isolated Buildings[J].BuildingScience,1999,15(1):14~20(in Chinese)
[3]韩淼,王秀梅.基础隔震层软碰撞限位实验研究[J].工程抗震与加固改造,2005,27(3):70~72Han Miao,Wang Xiu-mei.Experimental Study on SoftPounding Limiting Deformation of Base Isolating Layer[J].Earthquake Resistant Engineering andRetrofitting,2005,27(3):70~72(in Chinese)
[4]Han Miao,Li Xian-hua,Du Hong-kai.Testing Study onIsolating Soft-collision Limiting Displacement[A].The14th World Conference on Earthquake Engineering[C].Beijing,China.Oct 12~17,2008
[5]沙千里.近断层地震下基础隔震结构限位研究[D].北京:北京建筑工程学院,2012Sha Qian-li.The Research of Soft-collision on Base-isolated Structure in Near-fault Ground Motion[D].Beijing:Beijing University of Civil Engineering&Architecture,2012(in Chinese)
[6]孙欢,韩淼,段燕玲.近断层地震作用下隔震结构弹簧软碰撞限位分析[J].建筑结构(增刊I),2012,42(S1):538~541Sun Huan,Han Miao,Duan Yan-ling.Analysis onSpring Soft-collision Limiting Displacement of IsolatingStructure in Near-fault Ground Motions[J].BuildingStructure,2012,42(S1):538~541(in Chinese)
[7]GBJ 50011-2010,建筑抗震设计规范[S]GBJ 50011-2010,Code for Seismic Design of Buildings[S](in Chinese)
[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):14~20Han Miao,Zhou Xi-yuan.Analysis of Soft CollisionSafety for Base Isolated Buildings[J].BuildingScience,1999,15(1):14~20(in Chinese)
[3]韩淼,王秀梅.基础隔震层软碰撞限位实验研究[J].工程抗震与加固改造,2005,27(3):70~72Han Miao,Wang Xiu-mei.Experimental Study on SoftPounding Limiting Deformation of Base Isolating Layer[J].Earthquake Resistant Engineering andRetrofitting,2005,27(3):70~72(in Chinese)
[4]Han Miao,Li Xian-hua,Du Hong-kai.Testing Study onIsolating Soft-collision Limiting Displacement[A].The14th World Conference on Earthquake Engineering[C].Beijing,China.Oct 12~17,2008
[5]沙千里.近断层地震下基础隔震结构限位研究[D].北京:北京建筑工程学院,2012Sha Qian-li.The Research of Soft-collision on Base-isolated Structure in Near-fault Ground Motion[D].Beijing:Beijing University of Civil Engineering&Architecture,2012(in Chinese)
[6]孙欢,韩淼,段燕玲.近断层地震作用下隔震结构弹簧软碰撞限位分析[J].建筑结构(增刊I),2012,42(S1):538~541Sun Huan,Han Miao,Duan Yan-ling.Analysis onSpring Soft-collision Limiting Displacement of IsolatingStructure in Near-fault Ground Motions[J].BuildingStructure,2012,42(S1):538~541(in Chinese)
[7]GBJ 50011-2010,建筑抗震设计规范[S]GBJ 50011-2010,Code for Seismic Design of Buildings[S](in Chinese)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心