基于OpenSees的活性粉末混凝土梁柱节点抗震性能非线性分析
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摘要
活性粉末混凝土是一种具有超高强度、高耐久性和高韧性的超高性能水泥基材料,尤其适合用于框架结构中主要抗震构件。采用基于OpenSees的有限元非线性节点模型,对活性粉末混凝土梁柱节点进行了拟静力加载模拟,研究了不同轴压比下梁柱节点的抗震性能,得出了其滞回曲线和骨架曲线。结果表明:活性粉末混凝土梁柱节点具有良好的承载力和抗震性能,强度、刚度退化缓慢,延性较好。
Reactive powder concrete reactive pocoder concrete is a new cementitious material with high strength,durability and toughness.It is especially suitable for main seismic components of a RC frame.It takes a nonlinear model for beam-column joint based on Open Sees.Simulation on reactive pocoder concrete beam-column joint under reversed cyclic loading with different axial compression ratio was carried out.The hysteretic curve and skeleton curve are obtained.According to the results,the reactive pocoder concrete beam-column joint has better bearing capacity and seismic performance.The strength and stiffness degradation is not obvious,the ductility is better.
Reactive powder concrete reactive pocoder concrete is a new cementitious material with high strength,durability and toughness.It is especially suitable for main seismic components of a RC frame.It takes a nonlinear model for beam-column joint based on Open Sees.Simulation on reactive pocoder concrete beam-column joint under reversed cyclic loading with different axial compression ratio was carried out.The hysteretic curve and skeleton curve are obtained.According to the results,the reactive pocoder concrete beam-column joint has better bearing capacity and seismic performance.The strength and stiffness degradation is not obvious,the ductility is better.
引文
[1]鞠彦忠,王德弘,张超.活性粉末混凝土的研究与应用进展[J].东北电力大学学报,2011,31(5/6):6-15.
[2]RICHARD P,CHEYREZY M.Reactive powder concretes with high ductility and 200-800 MPa compressive strength[C]//ACI Spring Convention:SP144-24.San Francisco:American Concrete Institute,1994:507-518.
[3]鞠彦忠,王德弘,白俊峰.活性粉末混凝土柱抗震性能试验[J].哈尔滨工业大学学报,2013,45(8):111-116.
[4]王威,薛建阳,章红梅,等.框架结构在汶川5.12大地震中的震害分析及抗震启示[J].世界地震工程,2009,25(4):131-135.
[5]苏骏,徐世烺,毕辉.UHTCC新型梁柱节点抗震性能试验研究[J].地震工程与工程振动,2010,30(2):59-63.
[6]LOWES L,ALTOONTASH A.Modeling Reinforced-Concrete BeamColumn Joints Subjected to Cyclic Loading[J].J.Struct.Eng.,2003,129(12):1686-1697.
[7]BONACCI J F,PANTAZOPOULOU S J.Parametric investigation of joint mechanics[J].ACI Structural Journal,1993,90(1):61-71.
[8]MITRA N,LOWES L N.Evaluation,Calibration,and Verification of a Reinforced Concrete Beam-Column Joint Model[J].Journal of Structural Engineering,2007,133(1):105-120.
[9]SCOTT B D,PARK R,PRIESTLEY M J N.Stress-strain behavior of concrete confined by overlapping hoops at low and high strain rates[J].ACI Journal,1982,79(2):13-27.
[10]FILIPPOU F C,POPOV E P,BERTERO V V.Effects of Bond Deterioration on Hysteretic Behavior of Reinforced Concrete Joints[R].Earthquake Engineering Research Center,University of California,Berkeley,Report EERC 83,1983,83.
[11]KUSUHARA F,et al.Test of reinforced concrete interior beamcolumn joint subassemblage with eccentric beams[C]//13th World Conference on Earthquake Engineering,Vancouver,B.C.,Canada,2004:185.
[2]RICHARD P,CHEYREZY M.Reactive powder concretes with high ductility and 200-800 MPa compressive strength[C]//ACI Spring Convention:SP144-24.San Francisco:American Concrete Institute,1994:507-518.
[3]鞠彦忠,王德弘,白俊峰.活性粉末混凝土柱抗震性能试验[J].哈尔滨工业大学学报,2013,45(8):111-116.
[4]王威,薛建阳,章红梅,等.框架结构在汶川5.12大地震中的震害分析及抗震启示[J].世界地震工程,2009,25(4):131-135.
[5]苏骏,徐世烺,毕辉.UHTCC新型梁柱节点抗震性能试验研究[J].地震工程与工程振动,2010,30(2):59-63.
[6]LOWES L,ALTOONTASH A.Modeling Reinforced-Concrete BeamColumn Joints Subjected to Cyclic Loading[J].J.Struct.Eng.,2003,129(12):1686-1697.
[7]BONACCI J F,PANTAZOPOULOU S J.Parametric investigation of joint mechanics[J].ACI Structural Journal,1993,90(1):61-71.
[8]MITRA N,LOWES L N.Evaluation,Calibration,and Verification of a Reinforced Concrete Beam-Column Joint Model[J].Journal of Structural Engineering,2007,133(1):105-120.
[9]SCOTT B D,PARK R,PRIESTLEY M J N.Stress-strain behavior of concrete confined by overlapping hoops at low and high strain rates[J].ACI Journal,1982,79(2):13-27.
[10]FILIPPOU F C,POPOV E P,BERTERO V V.Effects of Bond Deterioration on Hysteretic Behavior of Reinforced Concrete Joints[R].Earthquake Engineering Research Center,University of California,Berkeley,Report EERC 83,1983,83.
[11]KUSUHARA F,et al.Test of reinforced concrete interior beamcolumn joint subassemblage with eccentric beams[C]//13th World Conference on Earthquake Engineering,Vancouver,B.C.,Canada,2004:185.
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