施工缝模型及在钢筋混凝土柱非线性分析中的应用
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摘要
提出用零长度截面单元模拟施工缝,并基于纤维模型推导了单元刚度矩阵,给出完整的单元描述。在此基础上,进一步提出用以模拟带缝柱的纤维杆元模型,即由一个非线性梁柱子单元端部附加零长截面子单元组成。通过OPENSEES非线性分析软件平台,建模分析了钢筋混凝土带缝柱在拟静力试验下的非线性反应行为,计算结果与试验结果吻合较好,验证了该模型的有效性,为以后在混凝土结构或构件的非线性分析中考虑施工缝的影响提供依据。
A zero-length-section element is proposed to model the construction joint.Based on fiber model theory,the qualitative description and the stiffness matrix of zero-length-section element are listed.Furthermore,a fiber line element model is derived which is constructed by a zero-length-section element at the end of a nonlinear beam-column element.Investigation of the static nonlinear responses of a cantilever column with construction joint by finite element procedure OPENSEES is played.It is shown that the model proposed here is reasonable and efficient in the nonlinear numerical analysis of reinforced concrete members with construction joint.
A zero-length-section element is proposed to model the construction joint.Based on fiber model theory,the qualitative description and the stiffness matrix of zero-length-section element are listed.Furthermore,a fiber line element model is derived which is constructed by a zero-length-section element at the end of a nonlinear beam-column element.Investigation of the static nonlinear responses of a cantilever column with construction joint by finite element procedure OPENSEES is played.It is shown that the model proposed here is reasonable and efficient in the nonlinear numerical analysis of reinforced concrete members with construction joint.
引文
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[3]宋玉普,魏春明.混凝土施工缝接缝面劈拉强度试验研究[J].混凝土,2006,200(6):22-25.SONG YU-PU.WEI CHUN-MING.Experimental researchon the splitting tensile strength for joint surface of concreteconstruction joint[J].Concrete,2006(6):22-25.
[4]李英民,于婧,刘建伟.现浇钢筋混凝土结构中施工缝的模型化研究初探[J].西安建筑科技大学学报:自然科学版,2010,42(2):196-200.LI YING-MIN,YU JING,LIU JIAN-WEI.Simulativeanalysis of construction joints on RC structure[J].Journal of Xian University of Architecture andTechnology:Natural Science Edition,2010,42(2):196-200.
[5]于婧,李英民,夏洪流.带施工缝钢筋混凝土柱剪切恢复力模型试验研究[J].建筑结构学报,2011,32(9):52-59.YU JING,LI YING-MIN,XIA HONG-LIU.Hystereticshear model for RC columns with construction joint[J].Journal of Building Structure,2011,32(9):52-59.
[6]张卫东,王振波,朱方之.施工缝位置对框架结构抗震性能的影响[J].低温建筑技术,2007,118(4):46-48.ZHANG WEI-DONG,WANG ZHEN-BO,ZHU FANG-ZHI.Influence of position of construction joint on seismic-resistance behavior of reinforced concrete frame[J].LowTemperature Architecture Technology,2007,118(4):46-48.
[7]段云岭,刘华北.材料非线性接缝模型[J].清华大学学报:自然科学版,2000,40(8):98-101.DUAN YUN-LING,LIU HUA-BEI.Material nonlinearjoint model[J].Journal of Tsinghua University:Science andTechndogy,2000,40(8):98-101.
[8]秦从律,张爱晖.基于截面纤维模型的弹塑性时程分析方法[J].浙江大学学报:工学版,2005,39(7):1003-1008.QIN CONG-LV,ZHANG AI-HUI.Nonlinear time historyanalysis based on section fiber model[J].Journal ofZhejiang University:Engineering Science,2005,39(7):1003-1008.
[9]SILVIA M,FRANK M K,MICHAEL H.OpenseesUsers Manual[R].PEER,University of California,Berkeley,2004.
[10]SCOTT B D,PARK R,PRIESTLEY M J N.Stress-strain behavior of concrete confined by overlappinghoops at low and high strain rates[J].ACI Journal,1982,79:13-27.
[11]TAUCER F F,SPACONE E,FILIPPOU F C.A fiberbeam-column element for seismic response analysis ofreinforced concrete structure[R].EarthquakeEngineering Research Center,Uniuersity of California,Berkeley,CA,1991.
[12]吕西林,卢文生.纤维杆元模型在框架结构非线性分析中的应用[J].力学季刊,2006,27(1):14-22.LV XI-LIN,LU WEN-SHENG.Application of fiberline element model in nonlinear analysis of framestructures[J].Chinese Quarterly of Mechanics,2006,27(1):14-22.
[13]齐虎,孙景江,林淋.OPENSEES中纤维模型的研究[J].世界地震工程,2007,23(4):48-54.QI HU,SUN JING-JIANG,LIN LIN.Research onfiber model of OPENSEES[J].World EarthquakeEngineering,2007,23(4):48-54.
[14]MARINI A,SPACONE E.Analysis of reinforcedconcrete elements including shear effects[J].ACIStructural Journal,2006,103(5):645-655.
[15]ZHAO JIAN,SRITHARAN S.Modeling of strainpenetration effects in fiber-based analysis of reinforcedconcrete structures[J].ACI Structural Journal,2007,104(2):133-141.
[2]MONKS W L.Treatment of construction joints[J].Concrete,1974,8(2):28-30.
[3]宋玉普,魏春明.混凝土施工缝接缝面劈拉强度试验研究[J].混凝土,2006,200(6):22-25.SONG YU-PU.WEI CHUN-MING.Experimental researchon the splitting tensile strength for joint surface of concreteconstruction joint[J].Concrete,2006(6):22-25.
[4]李英民,于婧,刘建伟.现浇钢筋混凝土结构中施工缝的模型化研究初探[J].西安建筑科技大学学报:自然科学版,2010,42(2):196-200.LI YING-MIN,YU JING,LIU JIAN-WEI.Simulativeanalysis of construction joints on RC structure[J].Journal of Xian University of Architecture andTechnology:Natural Science Edition,2010,42(2):196-200.
[5]于婧,李英民,夏洪流.带施工缝钢筋混凝土柱剪切恢复力模型试验研究[J].建筑结构学报,2011,32(9):52-59.YU JING,LI YING-MIN,XIA HONG-LIU.Hystereticshear model for RC columns with construction joint[J].Journal of Building Structure,2011,32(9):52-59.
[6]张卫东,王振波,朱方之.施工缝位置对框架结构抗震性能的影响[J].低温建筑技术,2007,118(4):46-48.ZHANG WEI-DONG,WANG ZHEN-BO,ZHU FANG-ZHI.Influence of position of construction joint on seismic-resistance behavior of reinforced concrete frame[J].LowTemperature Architecture Technology,2007,118(4):46-48.
[7]段云岭,刘华北.材料非线性接缝模型[J].清华大学学报:自然科学版,2000,40(8):98-101.DUAN YUN-LING,LIU HUA-BEI.Material nonlinearjoint model[J].Journal of Tsinghua University:Science andTechndogy,2000,40(8):98-101.
[8]秦从律,张爱晖.基于截面纤维模型的弹塑性时程分析方法[J].浙江大学学报:工学版,2005,39(7):1003-1008.QIN CONG-LV,ZHANG AI-HUI.Nonlinear time historyanalysis based on section fiber model[J].Journal ofZhejiang University:Engineering Science,2005,39(7):1003-1008.
[9]SILVIA M,FRANK M K,MICHAEL H.OpenseesUsers Manual[R].PEER,University of California,Berkeley,2004.
[10]SCOTT B D,PARK R,PRIESTLEY M J N.Stress-strain behavior of concrete confined by overlappinghoops at low and high strain rates[J].ACI Journal,1982,79:13-27.
[11]TAUCER F F,SPACONE E,FILIPPOU F C.A fiberbeam-column element for seismic response analysis ofreinforced concrete structure[R].EarthquakeEngineering Research Center,Uniuersity of California,Berkeley,CA,1991.
[12]吕西林,卢文生.纤维杆元模型在框架结构非线性分析中的应用[J].力学季刊,2006,27(1):14-22.LV XI-LIN,LU WEN-SHENG.Application of fiberline element model in nonlinear analysis of framestructures[J].Chinese Quarterly of Mechanics,2006,27(1):14-22.
[13]齐虎,孙景江,林淋.OPENSEES中纤维模型的研究[J].世界地震工程,2007,23(4):48-54.QI HU,SUN JING-JIANG,LIN LIN.Research onfiber model of OPENSEES[J].World EarthquakeEngineering,2007,23(4):48-54.
[14]MARINI A,SPACONE E.Analysis of reinforcedconcrete elements including shear effects[J].ACIStructural Journal,2006,103(5):645-655.
[15]ZHAO JIAN,SRITHARAN S.Modeling of strainpenetration effects in fiber-based analysis of reinforcedconcrete structures[J].ACI Structural Journal,2007,104(2):133-141.
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