基于纤维模型的型钢混凝土柱精细化建模分析
|
摘要
为研究型钢混凝土框架柱在反复荷载作用下的效应,采用开源的有限元分析软件OpenSEES,建立起基于纤维模型的型钢混凝土柱精细化模型,通过定义不同单轴材料本构模型的纤维来模拟其各自不同的应力—应变关系,结合非线性梁柱单元,形成完整的型钢混凝土柱模拟技术。并采用此模型对低周反复荷载作用下4个不同截面形式的型钢混凝土柱进行了滞回性能的全过程数值模拟。研究结果表明:此型钢混凝土柱精细化模型的数值模拟结果与试验结果吻合较好,所建立的型钢混凝土柱模型的OpenSEES数值模拟技术是合理、可行的,适用于基于纤维模型的型钢混凝土柱有限元数值模拟和受力性能的深入研究。
In order to investigate the behavior of SRC(Steel Reinforced Concrete) column under low-cycle loading,the open source finite element software OpenSEES was used to establish an accurate model of SRC column based on the nonlinear beam-column element.Different fibers were defined to simulate different stress-train relationships.And then,the model was used to simulate the hysteretic behavior of SRC columns of four different sections under low-cycle reciprocating loads.The results given by this model agree well with the experiment results.The SRC column model is reasonable and feasible,and it can be applied to numerical simulation and in-depth study of SRC columns.
In order to investigate the behavior of SRC(Steel Reinforced Concrete) column under low-cycle loading,the open source finite element software OpenSEES was used to establish an accurate model of SRC column based on the nonlinear beam-column element.Different fibers were defined to simulate different stress-train relationships.And then,the model was used to simulate the hysteretic behavior of SRC columns of four different sections under low-cycle reciprocating loads.The results given by this model agree well with the experiment results.The SRC column model is reasonable and feasible,and it can be applied to numerical simulation and in-depth study of SRC columns.
引文
[1]CHENG C C,LIN N J.Analytical model for predicting axial capacity and behavior of concrete encased steel composite stubcolumns[J].Journal of Constructional Steel Research,2006,62:424-433.
[2]SHEIKH S A,UZUMERI S M.Analytical model for concrete confinement in tied columns[J].Journal of the StructuralDivision,1982,108(12):2703-2722.
[3]MANDER J B,PRIESTLEY M J N,PARK R.Theoretical stress-strain model for confined concrete[J].Journal of Struc-tural Engineering,1988,114(8):1804-1826.
[4]朱雁茹,郭子雄.基于OpenSEES的SRC柱低周反复加载数值模拟[J].广西大学学报:自然科学版,2010,35(4):555-559.
[5]MENEGOTTO M,PINTO P E.Method of analysis for cyclically loaded reinforced concrete plane frames including changesin geometry and non-elastic behavior of elements under combined normal force and bending[C]//Proceedings of the Con-ference on Resistance and Ultimate Deformability of Structures Acted on by Well Defined Repeated Loads.Lisbon:Interna-tional Association for Bridge and Structural Engineering,1973:15-22.
[6]FILIPPOU F C.Effects of bond deterioration on seismic response of reinforced concrete frame[D].Berkeley,California:University of California,1983.
[7]郭子雄,张志伟,黄群贤,等.型钢混凝土柱恢复力模型试验研究[J].地震工程与工程振动,2009,29(5):79-85.
[8]陈小刚,牟在根,张举兵.型钢混凝土柱抗震性能实验研究[J].北京科技大学学报,2009,31(12):1516-1524.
[9]汪训流,陆新征,叶列平.往复荷载下钢筋混凝土柱受力性能的数值模拟[J].工程力学,2007,24(12):76-85.
[10]张传超,郑山锁,李磊.基于纤维模型的CFT框架柱滞回性能模拟及模型灵敏度分析[J].世界地震工程,2010,26(4):128-134.
[11]陈滔.基于有限单元柔度法的钢筋混凝土框架三维非线性弹性地震反应分析[D].重庆:重庆大学土木工程学院,2003.
[12]郑山锁,邓国专,杨勇,等.型钢混凝土结构粘结滑移性能试验研究[J].工程力学,2003,20(5):63-69.
[13]张传超,郑山锁,李磊,等.基于柔度法的纤维梁柱单元及其参数分析[J].工业建筑,2010,40(12):90-94.
[14]李磊,郑山锁,王斌.断裂力学在钢与混凝土界面粘结中的应用[J].工程力学,2009,26(12):52-57.
[15]李磊.型钢与高强高性能混凝土界面粘结滑移行为研究[D].西安:西安建筑科技大学土木工程学院,2007.
[2]SHEIKH S A,UZUMERI S M.Analytical model for concrete confinement in tied columns[J].Journal of the StructuralDivision,1982,108(12):2703-2722.
[3]MANDER J B,PRIESTLEY M J N,PARK R.Theoretical stress-strain model for confined concrete[J].Journal of Struc-tural Engineering,1988,114(8):1804-1826.
[4]朱雁茹,郭子雄.基于OpenSEES的SRC柱低周反复加载数值模拟[J].广西大学学报:自然科学版,2010,35(4):555-559.
[5]MENEGOTTO M,PINTO P E.Method of analysis for cyclically loaded reinforced concrete plane frames including changesin geometry and non-elastic behavior of elements under combined normal force and bending[C]//Proceedings of the Con-ference on Resistance and Ultimate Deformability of Structures Acted on by Well Defined Repeated Loads.Lisbon:Interna-tional Association for Bridge and Structural Engineering,1973:15-22.
[6]FILIPPOU F C.Effects of bond deterioration on seismic response of reinforced concrete frame[D].Berkeley,California:University of California,1983.
[7]郭子雄,张志伟,黄群贤,等.型钢混凝土柱恢复力模型试验研究[J].地震工程与工程振动,2009,29(5):79-85.
[8]陈小刚,牟在根,张举兵.型钢混凝土柱抗震性能实验研究[J].北京科技大学学报,2009,31(12):1516-1524.
[9]汪训流,陆新征,叶列平.往复荷载下钢筋混凝土柱受力性能的数值模拟[J].工程力学,2007,24(12):76-85.
[10]张传超,郑山锁,李磊.基于纤维模型的CFT框架柱滞回性能模拟及模型灵敏度分析[J].世界地震工程,2010,26(4):128-134.
[11]陈滔.基于有限单元柔度法的钢筋混凝土框架三维非线性弹性地震反应分析[D].重庆:重庆大学土木工程学院,2003.
[12]郑山锁,邓国专,杨勇,等.型钢混凝土结构粘结滑移性能试验研究[J].工程力学,2003,20(5):63-69.
[13]张传超,郑山锁,李磊,等.基于柔度法的纤维梁柱单元及其参数分析[J].工业建筑,2010,40(12):90-94.
[14]李磊,郑山锁,王斌.断裂力学在钢与混凝土界面粘结中的应用[J].工程力学,2009,26(12):52-57.
[15]李磊.型钢与高强高性能混凝土界面粘结滑移行为研究[D].西安:西安建筑科技大学土木工程学院,2007.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心