钢筋混凝土柱基于能量阈值的损伤准则
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摘要
提出一种基于能量阈值的评估钢筋混凝土柱竖向剩余承载力的损伤准则。该损伤准则是单步能量阈值与总滞回耗能的线性组合,能反映能量阈值与总能量相互耦合的影响。对振动台试验的数据、拟静力试验数据和数值算例进行了模拟分析,结果表明,基于能量阈值的损伤准则能很好评估各种工况下钢筋混凝土柱竖向剩余承载力,可用于建筑和桥梁结构地震作用下失效路径分析。
An energy threshold based damage criterion is proposed to evaluate the axial residual strength of RC columns.The damage criterion is a linear combination of one-step energy threshold and the total hysteretic energy,which can also reflect the coupling effect of them.The shaking table test data,pseudo-static test data and a numerical example are analyzed,and results indicated that the proposed damage criterion can evaluate the residual strength of the RC columns on almost all kinds of conditions,which can be used to analyze the failure path of buildings and bridge structures under seismic excitations.
An energy threshold based damage criterion is proposed to evaluate the axial residual strength of RC columns.The damage criterion is a linear combination of one-step energy threshold and the total hysteretic energy,which can also reflect the coupling effect of them.The shaking table test data,pseudo-static test data and a numerical example are analyzed,and results indicated that the proposed damage criterion can evaluate the residual strength of the RC columns on almost all kinds of conditions,which can be used to analyze the failure path of buildings and bridge structures under seismic excitations.
引文
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[8]李兆霞.损伤力学及其应用[M].北京:科学出版社,2002.Li Zhaoxia.Damage mechanics and application[M].Beijing:Science Press,2002.(in Chinese)
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[10]Shi Y C,Hao H,Li Z X.Numerical derivation of pressure-impulse diagrams for prediction of RC column damage to blast loads[J].International Journal of Impact Engineering,2008,35(11):1213―1227.
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[12]Park S W,Yen W P,Cooper J D.A comparative study of U.S.-Japan seismic design of highway bridges:II shake-table model tests[J].Earthquake Spectra,2003,19(4):933―958.
[13]Park Y J,Ang AH-S.Mechanistic seismic damage method for reinforced concrete[J].Journal of Structural Engineering,1985,111(4):722―739.
[14]王东升,冯启民,王国新.考虑低周疲劳寿命的改进Park-Ang地震损伤模型[J].土木工程学报,2004,37(11):41―49.Wang Dongsheng,Feng Qimin,Wang Guoxin.A modified Park-Ang seismic damage model considering low-cycle fatigue life[J].China Civil Engineering Journal,2004,37(11):41―49.(in Chinese)
[15]王宏业.Park-Ang双参数地震损伤模型的试验统计分析及改进[D].大连:大连海事大学,2008.Wang Hongye.Statistical analysis and improvement of Park-Ang seismic damage model[D].Dalian:Maritime Affairs University of Dalian,2008.(in Chinese)
[16]瞿岳前,梁兴文,田野.基于能量分析的地震损伤性能评估[J].世界地震工程,2006,22(1):109―114.Qu Yueqian,Liang Xingwen,Tian Yie.Evaluation of seismic damage performance based on energy analysis[J].World Earthquake Engineering,2006,22(1):109―114.(in Chinese)
[17]Lehman D E,Moehle J P.Seismic performance of well-confined concrete bridge columns[R].California:University of California,Berkeley,1998.
[18]LS-DYNA.Keyword user’s manual[M].Livermore,California:Livermore Software Technology Corporation,2006.
[2]Roufaiel M S L,Meyer C.Analytical modeling of hysteretic behavior of R/C frames[J].Journal of Structural Engineering,ASCE,1987,113(3):429―444.
[3]Stephens J E,Yao J T P.Damage assessment using response measurement[J].Journal of Structural Engineering,ASCE,1987,113(4):787―801.
[4]Wang M L,Shah S P.Reinforced concrete hysteresis model based in the damage concept[J].Earthquake Engineering and Structural Dynamics,1987,2:1512―1919.
[5]Gosain N K,Brown R H,Jirsa J O.Shear requirements for load reversals on RC members[J].Journal of Structural Engineering,ASCE,1977,103(7):1461―1476.
[6]Williams M S,Sexsmith R G.Seisimic damage indices for concrete structures:A state-of-the-art review[J].Earthquake Spectra,1995,11(2):319―349.
[7]汪梦甫,周锡元.混凝土高层建筑结构地震破坏准则研究现状分析[J].工程抗震,2002(3):1―4.Wang Mengpu,Zhou Xiyuan.Review of the research of earthquake damage criteria of reinforced concrete tall building structures[J].Earthquake Resistant Engineering,2002(3):1―4.(in Chinese)
[8]李兆霞.损伤力学及其应用[M].北京:科学出版社,2002.Li Zhaoxia.Damage mechanics and application[M].Beijing:Science Press,2002.(in Chinese)
[9]刘伯权,白绍良,徐云中.钢筋混凝土柱低周疲劳性能的试验研究[J].地震工程与工程振动,1998,18(4):82―89.Liu Boquan,Bai Shaoliang,Xu Yunzhong.Experimental study of low-cyclic behavior of concrete columns[J].Earthquake Engineering and Engineering Vibration,1998,18(4):82―89.(in Chinese)
[10]Shi Y C,Hao H,Li Z X.Numerical derivation of pressure-impulse diagrams for prediction of RC column damage to blast loads[J].International Journal of Impact Engineering,2008,35(11):1213―1227.
[11]ACI 318-02,Building code requirements for structural concrete[S].2002.
[12]Park S W,Yen W P,Cooper J D.A comparative study of U.S.-Japan seismic design of highway bridges:II shake-table model tests[J].Earthquake Spectra,2003,19(4):933―958.
[13]Park Y J,Ang AH-S.Mechanistic seismic damage method for reinforced concrete[J].Journal of Structural Engineering,1985,111(4):722―739.
[14]王东升,冯启民,王国新.考虑低周疲劳寿命的改进Park-Ang地震损伤模型[J].土木工程学报,2004,37(11):41―49.Wang Dongsheng,Feng Qimin,Wang Guoxin.A modified Park-Ang seismic damage model considering low-cycle fatigue life[J].China Civil Engineering Journal,2004,37(11):41―49.(in Chinese)
[15]王宏业.Park-Ang双参数地震损伤模型的试验统计分析及改进[D].大连:大连海事大学,2008.Wang Hongye.Statistical analysis and improvement of Park-Ang seismic damage model[D].Dalian:Maritime Affairs University of Dalian,2008.(in Chinese)
[16]瞿岳前,梁兴文,田野.基于能量分析的地震损伤性能评估[J].世界地震工程,2006,22(1):109―114.Qu Yueqian,Liang Xingwen,Tian Yie.Evaluation of seismic damage performance based on energy analysis[J].World Earthquake Engineering,2006,22(1):109―114.(in Chinese)
[17]Lehman D E,Moehle J P.Seismic performance of well-confined concrete bridge columns[R].California:University of California,Berkeley,1998.
[18]LS-DYNA.Keyword user’s manual[M].Livermore,California:Livermore Software Technology Corporation,2006.
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