基于OpenSees的碳纤维加固梁柱节点有限元分析
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摘要
采用有限元软件OpenSees对中间层边柱采用CFRP加固的梁柱节点进行了数值模拟分析,并与实验结果进行了对比,主要模拟和研究了CFRP加固节点核心区混凝土非线性抗剪性能、核心区梁柱纵筋锚固滑移性能、梁柱混凝土强度等级等因素对节点抗震性能的影响。
The seismic behavior of the joints strengthened with CFRP of reinforced concrete frame under cyclic loading is depicted using the nonlinear finite element software OpenSees in this study.The numerical simulations is compared with experimental results and the major influencing factors have been evaluated,including inelastic shear behavior of concrete in core area of joint,anchoring and slipping behavior of longitudinal reinforcement in core area and the strength grade of concrete.
The seismic behavior of the joints strengthened with CFRP of reinforced concrete frame under cyclic loading is depicted using the nonlinear finite element software OpenSees in this study.The numerical simulations is compared with experimental results and the major influencing factors have been evaluated,including inelastic shear behavior of concrete in core area of joint,anchoring and slipping behavior of longitudinal reinforcement in core area and the strength grade of concrete.
引文
[1]Jaehong Kim,James M.LaFave.Key influence parameters forthe joint shear behavior of reinforced concrete(RC)beam-col-umn connections[J].Engineering Structures,2007(29):2523-2539.
[2]卢莎.碳纤维加固混凝土框架抗震性能研究[D].上海:上海理工大学硕士学位毕业论文,2007.
[3]Y.A.Al-Salloum,T.H.Almusallam.Seismic Reponse of Interi-or RC Beam-Column Joints Upgraded with FRP SheetsⅠ:Ex-perimental Study[J].Journal of Composites for Construction,ASCE,2007,11(6):575-589.
[4]T.H.Almusallam,Y.A.Al-Salloum.Seismic Response of Inte-rior RC Beam-Column Joints Upgraded with FRP Sheets.Ⅱ:Analysis and Parametric Study[J].Journal of Composites forConstruction,ASCE,2007,11(6):590-600.
[5]Chris P.Pantelides,Yasuteru Okahashi,L.D.Reaveley.SeismicRehabilitation of Reinforced Concrete Frame Interior Beam-Column Joints with FRP Composites[J].Journal of Compositesfor Construction,ASCE,2008,12(4):435-445.
[6]Laura N.Lowes,Arash Altoontash.Modeling Reinforced-Con-crete Beam-Column Joints Subjected to Cyclic Loading[J].Journal of Structural Engineering,ASCE,2003,129(12):1686-1697.
[7]Silvia Mazzoni,Frank McKenna,Michael H.Scott,et al.OpenseesCommand Language Manual,University of California,2006.
[8]Silvia Mazzoni,Frank McKenna,Michael H.Scott,et al.OpenseesExpamle Primer,University of California,2006.
[9]杨红,吴晶晶,王志军.模型化方法对钢筋混凝土框架地震反应的影响分析[J].地震工程与工程振动,2008,28(2):10-19.
[10]朱庆华,梁书亭,王杰,等.基于OpenSees的钢筋混凝土框架节点抗震性能影响因素分析[J].工程抗震与加固改造,2007,29(5):31-34.
[2]卢莎.碳纤维加固混凝土框架抗震性能研究[D].上海:上海理工大学硕士学位毕业论文,2007.
[3]Y.A.Al-Salloum,T.H.Almusallam.Seismic Reponse of Interi-or RC Beam-Column Joints Upgraded with FRP SheetsⅠ:Ex-perimental Study[J].Journal of Composites for Construction,ASCE,2007,11(6):575-589.
[4]T.H.Almusallam,Y.A.Al-Salloum.Seismic Response of Inte-rior RC Beam-Column Joints Upgraded with FRP Sheets.Ⅱ:Analysis and Parametric Study[J].Journal of Composites forConstruction,ASCE,2007,11(6):590-600.
[5]Chris P.Pantelides,Yasuteru Okahashi,L.D.Reaveley.SeismicRehabilitation of Reinforced Concrete Frame Interior Beam-Column Joints with FRP Composites[J].Journal of Compositesfor Construction,ASCE,2008,12(4):435-445.
[6]Laura N.Lowes,Arash Altoontash.Modeling Reinforced-Con-crete Beam-Column Joints Subjected to Cyclic Loading[J].Journal of Structural Engineering,ASCE,2003,129(12):1686-1697.
[7]Silvia Mazzoni,Frank McKenna,Michael H.Scott,et al.OpenseesCommand Language Manual,University of California,2006.
[8]Silvia Mazzoni,Frank McKenna,Michael H.Scott,et al.OpenseesExpamle Primer,University of California,2006.
[9]杨红,吴晶晶,王志军.模型化方法对钢筋混凝土框架地震反应的影响分析[J].地震工程与工程振动,2008,28(2):10-19.
[10]朱庆华,梁书亭,王杰,等.基于OpenSees的钢筋混凝土框架节点抗震性能影响因素分析[J].工程抗震与加固改造,2007,29(5):31-34.
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