地震模拟试验中单质点体系小比例尺模型的分级相似关系
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摘要
在地震模拟试验中采用逐级加载的加载方式给试验结果带来较大误差.试验结果表明对一个模型采用逐级加载方式至大震输入后,其层间位移角为1/50;而对模型直接大震输入,其层间位移角为1/80,采用逐级加载的试验结果致使我们错误的估计原型的抗震性能;在逐级加载的地震模拟试验中,采用分级相似关系能减小逐级加载试验方式给结果带来的误差,从振动台试验加速度反应看误差达到6%左右,从位移反应上看,采用分级相似关系后,位移反应与直接进行大震试验结果较为接近.
In earthquake simulation,gradually loading brings great errors on the test results.The shaking table test results show that the inter-story drift angle of the model can reach 1/50 if the model is gradually loaded till strong earthquake loading while the drift angle can reach 1/80 when it is directly loaded.Therefore,gradually loading in the shaking table test will incorrectly estimate the seismic resistance capability of structures.In the shaking table test the method of gradually loading which uses classified similarity relationships can eliminate the testing errors caused by gradually loading.The errors of structural acceleration response of shaking table test is 6% while the response of displacement of shaking table test using classified similarity relationships is close to that using directly loading.
In earthquake simulation,gradually loading brings great errors on the test results.The shaking table test results show that the inter-story drift angle of the model can reach 1/50 if the model is gradually loaded till strong earthquake loading while the drift angle can reach 1/80 when it is directly loaded.Therefore,gradually loading in the shaking table test will incorrectly estimate the seismic resistance capability of structures.In the shaking table test the method of gradually loading which uses classified similarity relationships can eliminate the testing errors caused by gradually loading.The errors of structural acceleration response of shaking table test is 6% while the response of displacement of shaking table test using classified similarity relationships is close to that using directly loading.
引文
[1]华罗庚,宋健.模型与实体[J].系统工程与电子技术,1980,8:1-2Hua Luogeng,Song Jian.Models and physical[J].Systems Engineering and Electronics,1980,8:1-2
[2]张敏政.地震模拟试验中相似律应用的若干问题[J].地震工程与工程振动,1997,17(2):52-58Zhang Minzheng.Study on similitude laws for shaking table tests[J].Earthquake Engineering and EngineeringVibration,1997,17(2):52-58
[3]张敏政,孟庆利,刘晓明.建筑结构的地震模拟试验研究[J].工程抗震,2003,(4):31-35Zhang Minzheng,Meng Qingli,Liu Xiaoming.A study on the earthquake simulation test of building structures[J].Earthquake Resistant Engineering,2003,(4):31-35
[4]沈德健,吕西林.模型试验的微粒混凝土力学性能试验研究[J].土木工程学报,2010,43(10):22-29Shen Dejian,Lu Xilin.Experimental study on the mechanical property of microconcrete in model test[J].China CivilEngineering,2010,43(10):22-29
[5]周颖,卢文胜,吕西林.模拟地震振动台模型实用设计方法[J].结构工程师,2003,38(3):30-33Zhou Ying,Lu Wensheng,Lu Xilin.Practical model design method of shaking table tests[J].Structural Engineers,2003,38(3):30-33
[6]赵作舟,管桦,钱稼茹.欠人工质量缩尺振动台试验结构模型设计方法[J].建筑结构学报,2010,31(7):78-85Zhao Zuozhou,Guan Hua,Qian Jiaru.Design method of small scaled shaking table test structural model lacking artificialmas[J].Journal of Building Structures,2010,31(7):78-85
[7]孟庆利,黄思凝,郭迅.钢筋混凝土结构小比例尺模型的相似性研究[J].世界地震工程,2008,24(4):1-6Meng Qingli,Huang Sining,Guo Xun.Research on similarity of small scale reinforced concrete structural model[J].World Earthquake Engineering,2008,24(4):1-6
[8]Nam-sik KIM,Ji-Ho LEE,Sung-Pil CHANG,et al.An equivalentmulti-phase similitude law for pseudodynamic test onsmall-scale R/C models[C].Canada,13WCEE,2004
[9]Guo X,Meng Q L,Zhang M Z.Preliminary study on nonlinear similitude law used for structural seismic test[C].Proc ofInternational Conference on Advances and New Challenges in Earthquake Engineering Research,2002:235-240
[10]李小军,贺秋梅,亓兴军.地震动速度脉冲对大跨斜拉桥减震控制的影响[J].应用基础与工程科学学报,2012,20(2):272-285Li Xiaojun,He Qiumei,Qi Xingjun.Seismic mitigation control effects of long-span cable-stayed bridges to groundmotions with velocity pulse[J].Journal of Basic Science and Engineering,2012,20(2):272-285
[11]彭小波,刘浪,李小军,等.汶川地震中建筑物震害和地震动参数相关性研究[J].应用基础与工程科学学报,2011,19(4):574-582Peng Xiaobo,Liu Lang,Li Xiaojun,et al.Study on correlation between building damage and strong motion parameters inWenchuan earthquake[J].Journal of Basic Science and Engineering,2011,19(4):574-582
[2]张敏政.地震模拟试验中相似律应用的若干问题[J].地震工程与工程振动,1997,17(2):52-58Zhang Minzheng.Study on similitude laws for shaking table tests[J].Earthquake Engineering and EngineeringVibration,1997,17(2):52-58
[3]张敏政,孟庆利,刘晓明.建筑结构的地震模拟试验研究[J].工程抗震,2003,(4):31-35Zhang Minzheng,Meng Qingli,Liu Xiaoming.A study on the earthquake simulation test of building structures[J].Earthquake Resistant Engineering,2003,(4):31-35
[4]沈德健,吕西林.模型试验的微粒混凝土力学性能试验研究[J].土木工程学报,2010,43(10):22-29Shen Dejian,Lu Xilin.Experimental study on the mechanical property of microconcrete in model test[J].China CivilEngineering,2010,43(10):22-29
[5]周颖,卢文胜,吕西林.模拟地震振动台模型实用设计方法[J].结构工程师,2003,38(3):30-33Zhou Ying,Lu Wensheng,Lu Xilin.Practical model design method of shaking table tests[J].Structural Engineers,2003,38(3):30-33
[6]赵作舟,管桦,钱稼茹.欠人工质量缩尺振动台试验结构模型设计方法[J].建筑结构学报,2010,31(7):78-85Zhao Zuozhou,Guan Hua,Qian Jiaru.Design method of small scaled shaking table test structural model lacking artificialmas[J].Journal of Building Structures,2010,31(7):78-85
[7]孟庆利,黄思凝,郭迅.钢筋混凝土结构小比例尺模型的相似性研究[J].世界地震工程,2008,24(4):1-6Meng Qingli,Huang Sining,Guo Xun.Research on similarity of small scale reinforced concrete structural model[J].World Earthquake Engineering,2008,24(4):1-6
[8]Nam-sik KIM,Ji-Ho LEE,Sung-Pil CHANG,et al.An equivalentmulti-phase similitude law for pseudodynamic test onsmall-scale R/C models[C].Canada,13WCEE,2004
[9]Guo X,Meng Q L,Zhang M Z.Preliminary study on nonlinear similitude law used for structural seismic test[C].Proc ofInternational Conference on Advances and New Challenges in Earthquake Engineering Research,2002:235-240
[10]李小军,贺秋梅,亓兴军.地震动速度脉冲对大跨斜拉桥减震控制的影响[J].应用基础与工程科学学报,2012,20(2):272-285Li Xiaojun,He Qiumei,Qi Xingjun.Seismic mitigation control effects of long-span cable-stayed bridges to groundmotions with velocity pulse[J].Journal of Basic Science and Engineering,2012,20(2):272-285
[11]彭小波,刘浪,李小军,等.汶川地震中建筑物震害和地震动参数相关性研究[J].应用基础与工程科学学报,2011,19(4):574-582Peng Xiaobo,Liu Lang,Li Xiaojun,et al.Study on correlation between building damage and strong motion parameters inWenchuan earthquake[J].Journal of Basic Science and Engineering,2011,19(4):574-582
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