基于有限元软件的子结构拟动力试验技术
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摘要
目的研究有限元软件与电液伺服加载系统联机的子结构拟动力试验技术.方法运用OpenFresco试验协调系统,实现通用有限元软件OpenSees与电液伺服加载系统MTS Flextest GT的数据传递,并开展单层单跨钢结构框架在地震作用下的反应分析.结果MTS Flextest GT可以有效地接收并响应OpenSees发出的位移命令,作动器的目标位移与反馈位移基本一致,MTS Flextest GT与OpenSees的通信稳定可靠.子结构拟动力试验结果与OpenSees模拟结果吻合较好,该试验方法完全能够满足试验精度的要求.结论采用OpenFresco协调试验系统能够实现结构构件层次上的子结构拟动力试验,极大地扩展了拟动力试验的功能.
Pseudo-dynamic test method with sub-structure technique has been developed to combine finite element software and electro hydraulic servo system.Test data of electro hydraulic servo system MTS Flextest GT and analysis data of finite element software OpenSees are exchanged successfully by the collaborative system OpenFresco.Then,the seismic response of one bay one story steel frame structure is experimentally studied.The results show that the MTS Flextest GT system can effectively receive and respond the displacement com-mands of OpenSees,and the actuator's aim displacements accord with the actuator's feedback displacements.The communications between MTS Flextest GT and OpenSees are stable.By comparing the test results with OpenSees simulation results,they accorded accurately.It is proved that the collaborative system OpenFresco can research sub-component of structures using pseudo-dynamic test method with sub-structure technique experimentally.The function of pseudo-dynamic test method is widely expanded.
Pseudo-dynamic test method with sub-structure technique has been developed to combine finite element software and electro hydraulic servo system.Test data of electro hydraulic servo system MTS Flextest GT and analysis data of finite element software OpenSees are exchanged successfully by the collaborative system OpenFresco.Then,the seismic response of one bay one story steel frame structure is experimentally studied.The results show that the MTS Flextest GT system can effectively receive and respond the displacement com-mands of OpenSees,and the actuator's aim displacements accord with the actuator's feedback displacements.The communications between MTS Flextest GT and OpenSees are stable.By comparing the test results with OpenSees simulation results,they accorded accurately.It is proved that the collaborative system OpenFresco can research sub-component of structures using pseudo-dynamic test method with sub-structure technique experimentally.The function of pseudo-dynamic test method is widely expanded.
引文
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[7]Peng Pen,Masayoshi Nakashima,Hiroshi Tomofuji.Online hybrid test using displacement-force mixedcontrol[J].Earthquake Engineering and StructuralDynamic,2005,34:869-888.
[8]Darby A P,Blakeborough A,Williams M S.Improvedcontrol algorithm for real-time substructure testing[J].Earthquake Engineering and Structural Dynam-ics,2001,30:431-448.
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[11]Cheong H K,MacAlevey N.Experimental behavior ofjacketed reinforced concrete beams[J].Journal ofStructural Engineering,2000,126(6):692-699.
[12]Bilge Siyahi,Haydar Arslan.Nonlinear dynamic finiteelement simulation of Alibey earth dam[J].[J].En-vironmental Geology,2008,54:77-85.
[13]韩小雷,陈学伟,郑宜.足尺钢框架振动台试验及动力弹塑性数值模拟[J].地震工程与工程振动,2008,28:134-140.(Han Xiaolei,Chen Xuewei,Zheng Yi.Dynamic ex-periment and numerical simulation of a full scale steelframe[J].Journal of Earthquake Engineering and En-gineering Vibration,2008,28:134-140.)
[14]王瑾,蔡新江,田石柱.基于OpenSees的CFRP加固RC短柱抗震性能数值模拟[J].世界地震工程,2009,4:108-111.(Wang Jin,Cai Xinjiang,Tian Shizhu.Numerical sim-ulation on seismic behavior of CFRP retrofitted RCshort column based on OpenSees[J].World Earth-quake Engineering,2009,4:108-111.)
[15]Andreas S.Application of an experimental softwareframework to hybrid simulation of structures throughcollapse[J].First European Conference on Earth-quake Engineering and Seismology,2006,6:1221-1231.
[2]Williams M S,Blakeborough.A laboratory testing ofstructures under dynamic load:an introductory review[J].Phil Trans Royal Society,2001,3(59):1651-1669.
[3]Hakuno M,Shidowara M,Hara T.Dynamic destructivetest of a cantilevers beam controlled by an analogcomputer[J].Transactions of the Japan Society ofCivil Engineering,1969,171:1-9.
[4]邱法维.结构抗震实验方法进展[J].土木工程学报,2004,37(10):19-27.(Qiu Fawei.Developments of seismic testing methodsfor structures[J].China Civil Engineering Journal,2004,37(10):19-27.)
[5]王向英,田石柱.位移控制的子结构地震模拟振动台混合试验方法[J].世界地震工程,2009,25(2):30-35.(Wang Xiangying,Tian Shizhu.Hybrid testing methodon substructure techniques for shaking table by posi-tion control of actuator[J].World Earthquake Engi-neering,2009,25(2):30-35.)
[6]Pinto A V,Pegon P,Magonette G.Pseudo-dynamictesting of bridges using non-linear substructuring[J].Earthquake Engineering and Structural Dynamic,2004,33:1125-1146.
[7]Peng Pen,Masayoshi Nakashima,Hiroshi Tomofuji.Online hybrid test using displacement-force mixedcontrol[J].Earthquake Engineering and StructuralDynamic,2005,34:869-888.
[8]Darby A P,Blakeborough A,Williams M S.Improvedcontrol algorithm for real-time substructure testing[J].Earthquake Engineering and Structural Dynam-ics,2001,30:431-448.
[9]Schneider S P,Roeder C W.An inelastic substructuretechnique for the pseudodynamic test method[J].Earthquake Engineering and Structural Dynamics,1994,23:761-775.
[10]李永旺.地震作用下子结构拟动力试验方法研究[D].西安:西安建筑科技大学土木工程学院,2008.(Li Yongwang.Pseudo-dynamic substructure testingmethod for structures[D].Xi'an:School of Civil Engi-neering,Xi'an University of Architecture and Technol-ogy,2008.)
[11]Cheong H K,MacAlevey N.Experimental behavior ofjacketed reinforced concrete beams[J].Journal ofStructural Engineering,2000,126(6):692-699.
[12]Bilge Siyahi,Haydar Arslan.Nonlinear dynamic finiteelement simulation of Alibey earth dam[J].[J].En-vironmental Geology,2008,54:77-85.
[13]韩小雷,陈学伟,郑宜.足尺钢框架振动台试验及动力弹塑性数值模拟[J].地震工程与工程振动,2008,28:134-140.(Han Xiaolei,Chen Xuewei,Zheng Yi.Dynamic ex-periment and numerical simulation of a full scale steelframe[J].Journal of Earthquake Engineering and En-gineering Vibration,2008,28:134-140.)
[14]王瑾,蔡新江,田石柱.基于OpenSees的CFRP加固RC短柱抗震性能数值模拟[J].世界地震工程,2009,4:108-111.(Wang Jin,Cai Xinjiang,Tian Shizhu.Numerical sim-ulation on seismic behavior of CFRP retrofitted RCshort column based on OpenSees[J].World Earth-quake Engineering,2009,4:108-111.)
[15]Andreas S.Application of an experimental softwareframework to hybrid simulation of structures throughcollapse[J].First European Conference on Earth-quake Engineering and Seismology,2006,6:1221-1231.
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