考虑钢筋屈曲的框架结构在大震下的非线性动力反应分析
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摘要
以钢筋在反复受力下试验结果为依据,修正了PERFORM-3D有限元软件中考虑钢筋屈曲模型的计算参数,将计算结果与试验结果进行了对比验证。在此基础上,利用PERFORM-3D有限元软件,对按照现行规范设计的不同烈度区混凝土框架结构进行了可考虑钢筋屈曲的大震作用下非线性动力反应分析。分析结果表明:框架梁、柱端控制截面的纵向钢筋在大震作用下受压屈曲后仅能提供有限的抗压能力,一旦控制截面中的受压钢筋屈曲,框架结构将会比不考虑钢筋屈曲的更早发生破坏;此外,不同烈度区的框架结构,在罕遇地震作用下,地面运动越大,钢筋屈曲对框架结构的抗震性能影响越大,结构所表现出的抗震性能就越差。
According to the experimental results of cyclically loaded reinforced steel bar, the reinforced steel model considering the buckling effect was analyzed and compared in PERFORM-3D program. It was proved that the finite element analysis program named PERFORM-3D program can be used on the nonlinear dynamic response analysis of factors and rules on the RC Frames including the reinforcement buckling in different seismic degree. The analysis results demonstrated that the longitudinal reinforcements of the frame beams and columns can only provide a limited compressive capacity. The frame was damaged earlier than the case when the reinforcement buckling was not considered. In addition, the seismic-resistant performance of the frame was more affected by the reinforcement buckling when subjected to a rarely occurred earthquake and the performance was worse.
According to the experimental results of cyclically loaded reinforced steel bar, the reinforced steel model considering the buckling effect was analyzed and compared in PERFORM-3D program. It was proved that the finite element analysis program named PERFORM-3D program can be used on the nonlinear dynamic response analysis of factors and rules on the RC Frames including the reinforcement buckling in different seismic degree. The analysis results demonstrated that the longitudinal reinforcements of the frame beams and columns can only provide a limited compressive capacity. The frame was damaged earlier than the case when the reinforcement buckling was not considered. In addition, the seismic-resistant performance of the frame was more affected by the reinforcement buckling when subjected to a rarely occurred earthquake and the performance was worse.
引文
[1]Menegotto M,Pinto P E.Method of Analysis for Cyclically Loaded RC Plane Fames including Changes in Geometry and Non-elastic Behavior of Elements under Combined Normal Force and Bending[R].Symposium on the Resistance and Ultimate Deformability of Structures Acted on by Well Defined Repeated Loads.IABSE Symp.1973,15-22
[2]Monti G,Nuti C.Analytical Model of Cyclic Behavior of Reinforcing Bars with Inelastic Buckling[R].Department of Structural Engineering.Report No.91/06.University of Rome,1991
[3]Monti G,Nuti C.Nonlinear Cyclic Behavior of Reinforcing Bars including Buckling[J].Journal of Structural Engineering,1992,118(12):3268-3284
[4]Rodriguez M E,Botero J C,Villa J.Cyclic Stress-strain Behavior of Reinforcing Steel including the Effect of Buckling[J].Journal of Structural Engineering,1999,125(6):605-612
[5]Suda K,Murayama Y,Ichinomiya T,et al.Buckling Behavior of Longitudinal Reinforcing Bars in Concrete Column Subjected to Reverse Lateral Loading[C/CD]//Proceedings of the 11th World Conference on Earthquake Engineering,No.1753.Acapulco,Mexico 1996
[6]Bournas D A,Triantafillou T C.Bar buckling in RC columns cofined with composite materials[J].Journal of Composites,2011,15(3):339-343
[7]Kunnath S K,Heo Y A,Mohle J F.Nonlinear uniaxial material model for reinforcing steel bars[J].Journal of Structural Engineering,2009,135(4):335-343
[8]Cosenza E,Cicco F D,Prota A.Discussion of"Nonlinear uniaxial material model for reinforcing steel bars"by Sashi K.Kunnath,YeongAe Heo,and Jon F.Mohle[J].Journal of Structural Engineering,2010,136(7):917-920
[9]杨红,谢琴,张吉庆,等.考虑屈曲影响的钢筋本构修正模型及试验验证[J].土木工程学报,2015,48(10):21-29Yang Hong,Xie Qin,Zhang Jiqing,et al.A modified constitutive model of reinforcing bars considering buckling effects and its experimental verification[J].China Civil Engineering Journal,2015
[10]杨红,张洛,张和平.考虑纵筋屈曲及疲劳损伤的钢筋混凝土柱抗震性能试验研究与非线性分析[J].建筑结构学报,2013,34(11):130-140Yang Hong,Zhang Luo,Zhang Heping.Experiments and nonlinear analysis on seismic behavior of RC columns considering buckling and fatigue damage of reinforcing steel bar[J].Journal of Building Structures,2013,34(11):130-140
[11]Potger G M,Kawano A,Griffith M C.Warner.Dynamic Analysis of RC Frames Including Buckling of Longitudinal Steel Reinforcement[R].NZSEE 2001 Conference.Paper No.4.12.01
[12]Mazzoni S,McKenna F,Scott M H,et al.Open system for earthquake engineering simulation users command language manual[M/OL].Berkeley:University of California,2011-03-02
[13]Dodd L L,Restrepo-Posada J I.Model for Predicting Cyclic Behavior of Reinforcing Steel[J].Journal of Structural Engineering,1995,121(3):433-445
[14]Augusto Gomes,Julio Appleton.Nonlinear Cyclic Stress-strain Relationship of Rrinforcing Bars including Buckling[J].Engineering Structures,1995,19(10):822-826
[15]Dhakal R P,Maekawa K.Path-dependent Cyclic Stress-strain Relationship of Reinforcing Bar including Buckling[J].Engineering Structures,2002,24(11):1383-1396
[16]Bae S,Mieses A M,Bayrak 0.Inelastic Buckling of Reinforcing Bars[J].Journal of Structural Engineering,2005,131(2):314-321
[17]ACI 318-02.Building Code Requirements for Structural Concrete and Commentary[S].American Concrete Institute,2002
[18]Hoehler M S,Stanton J F.Simple Phenomenological Model for Reinforcing Steel under Arbitrary Load[J].Journal of Structural Engineering,2006,132(7):1061-1069
[2]Monti G,Nuti C.Analytical Model of Cyclic Behavior of Reinforcing Bars with Inelastic Buckling[R].Department of Structural Engineering.Report No.91/06.University of Rome,1991
[3]Monti G,Nuti C.Nonlinear Cyclic Behavior of Reinforcing Bars including Buckling[J].Journal of Structural Engineering,1992,118(12):3268-3284
[4]Rodriguez M E,Botero J C,Villa J.Cyclic Stress-strain Behavior of Reinforcing Steel including the Effect of Buckling[J].Journal of Structural Engineering,1999,125(6):605-612
[5]Suda K,Murayama Y,Ichinomiya T,et al.Buckling Behavior of Longitudinal Reinforcing Bars in Concrete Column Subjected to Reverse Lateral Loading[C/CD]//Proceedings of the 11th World Conference on Earthquake Engineering,No.1753.Acapulco,Mexico 1996
[6]Bournas D A,Triantafillou T C.Bar buckling in RC columns cofined with composite materials[J].Journal of Composites,2011,15(3):339-343
[7]Kunnath S K,Heo Y A,Mohle J F.Nonlinear uniaxial material model for reinforcing steel bars[J].Journal of Structural Engineering,2009,135(4):335-343
[8]Cosenza E,Cicco F D,Prota A.Discussion of"Nonlinear uniaxial material model for reinforcing steel bars"by Sashi K.Kunnath,YeongAe Heo,and Jon F.Mohle[J].Journal of Structural Engineering,2010,136(7):917-920
[9]杨红,谢琴,张吉庆,等.考虑屈曲影响的钢筋本构修正模型及试验验证[J].土木工程学报,2015,48(10):21-29Yang Hong,Xie Qin,Zhang Jiqing,et al.A modified constitutive model of reinforcing bars considering buckling effects and its experimental verification[J].China Civil Engineering Journal,2015
[10]杨红,张洛,张和平.考虑纵筋屈曲及疲劳损伤的钢筋混凝土柱抗震性能试验研究与非线性分析[J].建筑结构学报,2013,34(11):130-140Yang Hong,Zhang Luo,Zhang Heping.Experiments and nonlinear analysis on seismic behavior of RC columns considering buckling and fatigue damage of reinforcing steel bar[J].Journal of Building Structures,2013,34(11):130-140
[11]Potger G M,Kawano A,Griffith M C.Warner.Dynamic Analysis of RC Frames Including Buckling of Longitudinal Steel Reinforcement[R].NZSEE 2001 Conference.Paper No.4.12.01
[12]Mazzoni S,McKenna F,Scott M H,et al.Open system for earthquake engineering simulation users command language manual[M/OL].Berkeley:University of California,2011-03-02
[13]Dodd L L,Restrepo-Posada J I.Model for Predicting Cyclic Behavior of Reinforcing Steel[J].Journal of Structural Engineering,1995,121(3):433-445
[14]Augusto Gomes,Julio Appleton.Nonlinear Cyclic Stress-strain Relationship of Rrinforcing Bars including Buckling[J].Engineering Structures,1995,19(10):822-826
[15]Dhakal R P,Maekawa K.Path-dependent Cyclic Stress-strain Relationship of Reinforcing Bar including Buckling[J].Engineering Structures,2002,24(11):1383-1396
[16]Bae S,Mieses A M,Bayrak 0.Inelastic Buckling of Reinforcing Bars[J].Journal of Structural Engineering,2005,131(2):314-321
[17]ACI 318-02.Building Code Requirements for Structural Concrete and Commentary[S].American Concrete Institute,2002
[18]Hoehler M S,Stanton J F.Simple Phenomenological Model for Reinforcing Steel under Arbitrary Load[J].Journal of Structural Engineering,2006,132(7):1061-1069