核心型钢混凝土柱的滞回性能数值分析
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摘要
在考虑型钢和箍筋对混凝土的约束机制基础上,采用ABAQUS有限元分析软件,建立了适用于核心型钢混凝土柱的有限元分析模型。通过对比滞回性能数值分析结果与试验结果,验证了该有限元模型的合理性和准确性,并基于该有限元模型探究了轴压比、纵筋配筋率、体积配箍率、含钢率和型钢截面形式对核心型钢混凝土柱滞回性能的影响。
Considering the confinement mechanism of concrete confined by steel and stirrups,a finite element model was proposed by using the software ABAQUS to simulate the hysteretic behavior of core steel reinforced concrete( CSRC)columns. The finite element model was validated by the comparisons of the hysteretic curves between the numerical simulation results and test results. Finally,the influence factors,including the axial load ratio,longitudinal reinforcement ratio,volumetric reinforcement ratio,steel ratio and steel cross-section form,were investigated based on the proposed finite element method.
Considering the confinement mechanism of concrete confined by steel and stirrups,a finite element model was proposed by using the software ABAQUS to simulate the hysteretic behavior of core steel reinforced concrete( CSRC)columns. The finite element model was validated by the comparisons of the hysteretic curves between the numerical simulation results and test results. Finally,the influence factors,including the axial load ratio,longitudinal reinforcement ratio,volumetric reinforcement ratio,steel ratio and steel cross-section form,were investigated based on the proposed finite element method.
引文
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[14]赵宪忠,秦浩,陈以一.十字形截面钢骨约束混凝土本构模型试验研究[J].建筑结构学报,2014,35(4):268-279.
[15]黄维,钱江,周知.考虑混凝土不同约束效应的型钢混凝土柱抗震性能模拟研究[J].工程力学,2016,33(5):157-165.
[16]赵宪忠,温福平.钢骨约束混凝土的约束机制及其应力-应变模型建立[J].工程力学,2018,35(5):36-46
[17]MANDER J B,PRIESTLEY M J N,PARK R.Theoretical StressStrain Model for Confined Concrete[J].Journal of Structural Engineering,1988,114(8):1804-1826.
[2]杨勇,郭子雄,黄秋来,等.核芯型钢混凝土(CSRC)结构应用前景及抗震性能分析[J].工程抗震与加固改造,2005,27(5):5-11.
[3]刘阳.核心型钢混凝土柱抗震性能实验研究[D].泉州:华侨大学,2006.
[4]谢吓弟.核心型钢混凝土柱抗震构造与轴压性能试验研究[D].泉州:华侨大学,2008.
[5]范重,钱稼茹,吴学敏.核心配筋柱抗震性能试验研究[J].建筑结构学报,2001,22(1):14-19.
[6]SAKAI J,MATSUI C,MINAMI K.Earthquake Resistant Properties of Core Steel Composite[C]//Proceedings of 12th World Conference on Earthquake Engineering.Auckland:2000.
[7]TANAKA Y,RO Y.Strengthening of Reinforced Concrete Columns by Central Reinforcing Element[C]//Proceedings of11th World Conference on Earthquake Engineering.Mexico:1996.
[8]刘阳,郭子雄,黄群贤.核心型钢混凝土柱恢复力模型试验研究[J].建筑结构学报,2009,29(增刊2):196-201.
[9]刘阳,郭子雄,欧阳文俊,等.核心型钢混凝土柱抗震性能及轴压比限值试验研究[J].土木工程学报,2010,43(6):57-66.
[10]刘阳,郭子雄,许鹏红,等.核心型钢混凝土柱轴压性能试验研究[J].建筑结构学报,2015,36(4):68-74.
[11]EL-TAWIL S,DEIERLEIN G G.Strength and Ductility of Concrete Encased Composite Columns[J].Journal of Structural Engineering,1999,125(9):1009-1019.
[12]CHEN C C,LIN N J.Analytical Model for Predicting Axial Capacity and Behavior of Concrete Encased Steel Composite Stub Columns[J].Journal of Constructional Steel Research,2006,62(5):424-433.
[13]ELLOBODY E,YOUNG B.Numerical Simulation of Concrete Encased Steel Composite Columns[J].Journal of Constructional Steel Research,2011,67(2):211-222.
[14]赵宪忠,秦浩,陈以一.十字形截面钢骨约束混凝土本构模型试验研究[J].建筑结构学报,2014,35(4):268-279.
[15]黄维,钱江,周知.考虑混凝土不同约束效应的型钢混凝土柱抗震性能模拟研究[J].工程力学,2016,33(5):157-165.
[16]赵宪忠,温福平.钢骨约束混凝土的约束机制及其应力-应变模型建立[J].工程力学,2018,35(5):36-46
[17]MANDER J B,PRIESTLEY M J N,PARK R.Theoretical StressStrain Model for Confined Concrete[J].Journal of Structural Engineering,1988,114(8):1804-1826.