简易消能减震砌体结构模型振动台试验
|
摘要
针对村镇量大面广的砌体结构,提出了一种简易消能减震技术,并对该技术进行了1∶4模型振动台试验,结果表明:该技术可使结构在小震作用下,不发生需要修复的破坏,能保证房屋正常使用功能要求;输入台面峰值加速度0.225g,相当于原型房屋的地面峰值加速度0.15g(7.5度中震),消能减震部位发挥作用,有效减轻砌体结构在大震下的损伤;当输入台面峰值加速度0.6g,相当于原型房屋的地面峰值加速度0.4g(8度大震),消能减震部位破坏严重,但结构仍未倒塌。
In view of the widely used masonry structure in village buildings,we propose a simply constructed energy dissipation technology in a feasible way,which is experimented with a model at the ratio of 1 to 4 on the shaking table.Through an analysis of the process and results of the experiment,it is found that this technology can protect the building from damage in need of repair and assure the building's basic functions in a minor seismic scale.When the input mesa peak acceleration is 0.465g,equal to PGA of 0.31g(7.5 degree)of the original building,the energy dissipation system begins to take effects and effectively reduces the damage of the masonry structures from a bigger seismic scale.When the input mesa peak acceleration is increased to 0.6g,equal to PGA of 0.4g(8 degree),the energy dissipation system is severely damaged,but the masonry structure doesn't collapse.
In view of the widely used masonry structure in village buildings,we propose a simply constructed energy dissipation technology in a feasible way,which is experimented with a model at the ratio of 1 to 4 on the shaking table.Through an analysis of the process and results of the experiment,it is found that this technology can protect the building from damage in need of repair and assure the building's basic functions in a minor seismic scale.When the input mesa peak acceleration is 0.465g,equal to PGA of 0.31g(7.5 degree)of the original building,the energy dissipation system begins to take effects and effectively reduces the damage of the masonry structures from a bigger seismic scale.When the input mesa peak acceleration is increased to 0.6g,equal to PGA of 0.4g(8 degree),the energy dissipation system is severely damaged,but the masonry structure doesn't collapse.
引文
[1]尚守平,刘可,周志锦.农村民居隔震技术[J].施工技术,2009,38(2):97-99.SHANG Shouping,LIU Ke,ZHOU Zhijin.Seismicisolation technology of rural buildings[J].ConstructionTechnology,2009,38(2):97-99.
[2]岁小溪.橡胶颗粒:砂混合物的隔震性能研究[D].长沙:湖南大学硕士学位论文,2009.
[3]尚守平,周志锦,刘可,等.一种钢筋沥青复合隔震层的性能[J].铁道科学与工程学报,2009,6(3):13-16.SHANG Shouping,ZHOU Zhijin,LIU Ke,et al.Theresearch on the steel-asphalt isolation lay[J].Journal ofRailway Science and Engineering,2009,6(3):13-16.
[4]许琪搂,李杰,李国强.建筑结构抗震设计[M].郑州:河南科学技术出版社,1992.
[5]吕西林,朱玉华,施卫星,等.组合基础隔震房屋模型振动台试验研究[J].土木工程学报,2001,34(2):43-49.LüXilin,ZHU Yuhua,SHI Weixing,et al.Shakingtable test on building model with comined isolationsystem[J].China Civil Engineering Journal,2001,34(2):43-49.
[6]Ryan K L,Chopra A K.Approximate analysis methodsfor asymmetric plan base-isolated buildings[J].Earthquake Engineering and Structural Dynamies,2002,31(1):33-54.
[7]Hwang J S,Hsu T Y.Experimental study of isolatedbuilding under triaxial ground excitations[J].Journalof Structural Engineering,2000,126(8):879-886.
[8]Mostaghel N,Davis T.Representations of coulombfriction for dynamic analysis[J].EarthquakeEngineering and Structural Dynamics,1997,26(5):541-548.
[9]李立.隔震与减震技术,中国工程抗震研究四十年[M].北京:地震出版社,1989.
[10]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
[11]Symans M D,Charney F A,Whittaker A S,et al.Energy dissipation systems for seismic applications:current practice and recent developments[J].Journal ofStructural Engineering,2008,134(1):3-21.
[12]Ye K,Li L,Zhu H P.A modified kelvin impact modelfor pounding simulation of base-isolated building withadjacent structures[J].Earthquake Engineering andEngineering Vibration,2009,8(3):433-446.
[13]Shrimali M K,Jangid R S.Non-linear seismic responseof base-isolated liquid storage tanks to bi-directionalexcitation[J].Nuclear Engineering and Design,2002,217(1/2):1-20.
[14]Gong L,Hao H.Analysis of coupled lateral-torsional-pounding responses of one-storey asymmetric adjacentstructures subjected to bi-directional ground motionspart I:uniform ground motion input[J].Advances inStructural Engineering,2005,8(5):463-478.
[15]Hao H,Gong L.Analysis of coupled lateral-torsional-pounding responses of one-storey asymmetric adjacentstructures subjected to bi-directional ground motionspart II:spatially varying ground motion input[J].Advances in Structural Engineering,2005,8(5):481-495.
[16]Phocas M C,Pamboris G.Multi-storey structures withcompound seismic isolation[J].WIT Transactions onthe Built Environment,2009,104,207-216.
[2]岁小溪.橡胶颗粒:砂混合物的隔震性能研究[D].长沙:湖南大学硕士学位论文,2009.
[3]尚守平,周志锦,刘可,等.一种钢筋沥青复合隔震层的性能[J].铁道科学与工程学报,2009,6(3):13-16.SHANG Shouping,ZHOU Zhijin,LIU Ke,et al.Theresearch on the steel-asphalt isolation lay[J].Journal ofRailway Science and Engineering,2009,6(3):13-16.
[4]许琪搂,李杰,李国强.建筑结构抗震设计[M].郑州:河南科学技术出版社,1992.
[5]吕西林,朱玉华,施卫星,等.组合基础隔震房屋模型振动台试验研究[J].土木工程学报,2001,34(2):43-49.LüXilin,ZHU Yuhua,SHI Weixing,et al.Shakingtable test on building model with comined isolationsystem[J].China Civil Engineering Journal,2001,34(2):43-49.
[6]Ryan K L,Chopra A K.Approximate analysis methodsfor asymmetric plan base-isolated buildings[J].Earthquake Engineering and Structural Dynamies,2002,31(1):33-54.
[7]Hwang J S,Hsu T Y.Experimental study of isolatedbuilding under triaxial ground excitations[J].Journalof Structural Engineering,2000,126(8):879-886.
[8]Mostaghel N,Davis T.Representations of coulombfriction for dynamic analysis[J].EarthquakeEngineering and Structural Dynamics,1997,26(5):541-548.
[9]李立.隔震与减震技术,中国工程抗震研究四十年[M].北京:地震出版社,1989.
[10]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
[11]Symans M D,Charney F A,Whittaker A S,et al.Energy dissipation systems for seismic applications:current practice and recent developments[J].Journal ofStructural Engineering,2008,134(1):3-21.
[12]Ye K,Li L,Zhu H P.A modified kelvin impact modelfor pounding simulation of base-isolated building withadjacent structures[J].Earthquake Engineering andEngineering Vibration,2009,8(3):433-446.
[13]Shrimali M K,Jangid R S.Non-linear seismic responseof base-isolated liquid storage tanks to bi-directionalexcitation[J].Nuclear Engineering and Design,2002,217(1/2):1-20.
[14]Gong L,Hao H.Analysis of coupled lateral-torsional-pounding responses of one-storey asymmetric adjacentstructures subjected to bi-directional ground motionspart I:uniform ground motion input[J].Advances inStructural Engineering,2005,8(5):463-478.
[15]Hao H,Gong L.Analysis of coupled lateral-torsional-pounding responses of one-storey asymmetric adjacentstructures subjected to bi-directional ground motionspart II:spatially varying ground motion input[J].Advances in Structural Engineering,2005,8(5):481-495.
[16]Phocas M C,Pamboris G.Multi-storey structures withcompound seismic isolation[J].WIT Transactions onthe Built Environment,2009,104,207-216.
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