强震作用下钢材等效本构模型应用研究
|
摘要
为研究考虑损伤退化的钢材等效本构模型在整体框架中的应用及其用于强震作用下钢框架结构弹塑性时程分析的可行性,选取已有典型钢框架静力及动力试验,对其分别采用等效本构模型和传统的两折线模型进行计算,并与试验结果进行对比分析,验证等效本构模型的可靠性和对计算精度的提高作用。在此基础上,将等效本构模型应用于10层钢框架结构抗震性能分析中,采用增量动力分析法,研究损伤累积退化对多高层钢框架结构强震作用下动力响应的影响,并与不考虑损伤退化的模型计算结果进行对比分析。分析结果表明:累积损伤退化的发生会加剧结构的动力响应,若不考虑此影响,会低估结构变形,导致结构存在一定的安全隐患。采用等效本构模型的增量动力分析能够较为合理地反映结构在强震作用下的承载性能退化现象,但不同地震波作用下的计算结果差异较大。
In order to verify the applicability of steel equivalent constitutive model considering damage and degradation in steel frame,typical tests of both static and dynamic loadings were adopted. The applicability of the model in time history analysis for steel frames was proved. The test results were compared with proposed model and traditional model to prove the reliability of proposed model and the enhancing effect on calculation accuracy. Base on the verification,the model was applied in seismic analysis of a ten-story steel frame and compared with the cyclic constitutive model without considering damage and degradation. Incremental dynamic analysis was performed to study the effect of damage and degradation on dynamic behaviours of steel frame subjected to strong earthquakes. The analysis results show that:the cumulative damage would aggravate the dynamic response of steel frame under strong earthquake. If this factor is not be considered,the deformation capacity would be underestimated,leading to unsafe design. Incremental dynamic curves with proposed model could reasonably reflect capacity degradation under earthquake. However,the calculative results of different earthquake waves are quite different.
In order to verify the applicability of steel equivalent constitutive model considering damage and degradation in steel frame,typical tests of both static and dynamic loadings were adopted. The applicability of the model in time history analysis for steel frames was proved. The test results were compared with proposed model and traditional model to prove the reliability of proposed model and the enhancing effect on calculation accuracy. Base on the verification,the model was applied in seismic analysis of a ten-story steel frame and compared with the cyclic constitutive model without considering damage and degradation. Incremental dynamic analysis was performed to study the effect of damage and degradation on dynamic behaviours of steel frame subjected to strong earthquakes. The analysis results show that:the cumulative damage would aggravate the dynamic response of steel frame under strong earthquake. If this factor is not be considered,the deformation capacity would be underestimated,leading to unsafe design. Incremental dynamic curves with proposed model could reasonably reflect capacity degradation under earthquake. However,the calculative results of different earthquake waves are quite different.
引文
[1]Sivaselvan M V,Reinhorn A M.Hysteretic models for deteriorating inelastic structures[J].Journal of Engineering Mechanics,ASCE,2000,126(6):633-640.
[2]Shen Z Y,Dong B,Cao W X.A hysteresis model for plane steel members with damage cumulative effects[J].Journal of Constructional Steel Research,1998,48(2/3):79-87.
[3]Della C G,De M G,Landolfo R.Seismic analysis of MR steel frames based on refined hysteretic models of connections[J].Journal of Constructional Steel Research,2002,58(10):1331-1345.
[4]Sucuoglu H,Erberik A.Energy-based hysteresis and damage models for deteriorating systems[J].Earthquake Engineering and Structural Dynamics,2004,33(1):69-88.
[5]Ibarra L F,Medina R A,Krawinkler H.Hysteretic models that incorporate strength and stiffness deterioration[J].Earthquake Engineering and Structural Dynamics,2005,34(12):1489-1511.
[6]Castiglioni C A,Zambrano A.Determination of the behaviour factor of steel moment-resisting(MR)frames by a damage accumulation approach[J].Journal of Constructional Steel Research,2009,66(5):723-735.
[7]王萌,石永久,王元清.考虑累积损伤退化的等效钢材本构模型研究[J].建筑结构学报,2013,34(10):73-83.(WANG Meng,SHI Yongjiu,WANG Yuanqing.Study on equivalent constitutive model of steel with cumulative degradation and damage[J].Journal of Building Structures,2013,34(10):73-83.(in Chinese))
[8]Ricles J M,Mao C S,Lu L W,et al.Inelastic cyclic testing of welded unreinforced moment connections[J].Journal of Structural Engineering,ASCE,2002,128(4):429-440.
[9]Wang W,Zhang Y Y,Chen Y Y,et al.Improving seismic performance of steel moment connections with noncompact beam web[C]//The 6th International Symposium on Steel Structures.Seoul,Korea:Korean Society of Steel Construction,2011:517-522.
[10]Shi Y J,Wang M,Wang Y Q.Extremely low cycle fatigue experimental and constitutive model study of structural steel under cyclic loading[J].Journal of Constructional Steel Research,2011,67(8):1185-1197.
[11]郭兵,郭彦林,柳锋,等.焊接及螺栓连接钢框架的循环加载试验研究[J].建筑结构学报,2006,27(2):47-56.(GUO Bing,GUO Yanlin,LIU Feng,et al.Research on cyclic behavior of welded and bolted steel frames[J].Journal of Building Structures,2006,27(2):47-56.(in Chinese))
[12]聂建国,黄远,樊健生.考虑楼板组合作用的方钢管混凝土组合框架受力性能试验研究[J].建筑结构学报,2011,32(3):99-108.(NIE Jianguo,HUANG Yuan,FAN Jianshe.Experimental study on load-bearing behavior of rectangular CFST frame considering composite action of floor slab[J].Journal of Building Structures,2011,32(3):99-108.(in Chinese))
[13]聂建国,王宇航.基于ABAQUS的钢-混凝土组合结构纤维梁模型的开发及应用[J].工程力学,2012,29(1):70-80.(Nie Jianguo,Wang Yuhang.Development and application of steel-concrete composite fiber beam model in ABAQUS platform[J].Engineering Mechanics,2012,29(1):70-80.(in Chinese))
[14]Kim S E,Lee D H,Cuong N H.Shaking table tests of a two-story un-braced steel frame[J].Journal of Constructional Steel Research,2007,63(3):412-421.
[15]李洪泉,贲庆国,于之绰,张跃强,吕西林.钢框架结构在地震作用下累积损伤分析及试验研究[J].建筑结构学报,2004,25(3):69-74.(LI Hongquan,BEN Qingguo,YU Zhichuo,ZHANG Yueqiang,LU Xilin.Analysis and experiment of cumulated damage of steel frame structures under earthquake action[J].Journal of Building Structures,2004,25(3):69-74.(in Chinese))
[16]GB 50011—2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.(GB 50011—2001 Code for seismic design of buildings[S].Beijing:China Architecture&Building Press,2001.(in Chinese))
[17]JGJ 101—1996建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997.(JGJ 101—1996Specification of testing methods for earthquake resistant building[S].Beijing:China Architecture&Building Press,1997.(in Chinese))
[18]Vamvatsikos D,Cornell C A.Incremental dynamic analysis[J].Earthquake Engineering and Structural Dynamics,2002,31(3):491-514.
[2]Shen Z Y,Dong B,Cao W X.A hysteresis model for plane steel members with damage cumulative effects[J].Journal of Constructional Steel Research,1998,48(2/3):79-87.
[3]Della C G,De M G,Landolfo R.Seismic analysis of MR steel frames based on refined hysteretic models of connections[J].Journal of Constructional Steel Research,2002,58(10):1331-1345.
[4]Sucuoglu H,Erberik A.Energy-based hysteresis and damage models for deteriorating systems[J].Earthquake Engineering and Structural Dynamics,2004,33(1):69-88.
[5]Ibarra L F,Medina R A,Krawinkler H.Hysteretic models that incorporate strength and stiffness deterioration[J].Earthquake Engineering and Structural Dynamics,2005,34(12):1489-1511.
[6]Castiglioni C A,Zambrano A.Determination of the behaviour factor of steel moment-resisting(MR)frames by a damage accumulation approach[J].Journal of Constructional Steel Research,2009,66(5):723-735.
[7]王萌,石永久,王元清.考虑累积损伤退化的等效钢材本构模型研究[J].建筑结构学报,2013,34(10):73-83.(WANG Meng,SHI Yongjiu,WANG Yuanqing.Study on equivalent constitutive model of steel with cumulative degradation and damage[J].Journal of Building Structures,2013,34(10):73-83.(in Chinese))
[8]Ricles J M,Mao C S,Lu L W,et al.Inelastic cyclic testing of welded unreinforced moment connections[J].Journal of Structural Engineering,ASCE,2002,128(4):429-440.
[9]Wang W,Zhang Y Y,Chen Y Y,et al.Improving seismic performance of steel moment connections with noncompact beam web[C]//The 6th International Symposium on Steel Structures.Seoul,Korea:Korean Society of Steel Construction,2011:517-522.
[10]Shi Y J,Wang M,Wang Y Q.Extremely low cycle fatigue experimental and constitutive model study of structural steel under cyclic loading[J].Journal of Constructional Steel Research,2011,67(8):1185-1197.
[11]郭兵,郭彦林,柳锋,等.焊接及螺栓连接钢框架的循环加载试验研究[J].建筑结构学报,2006,27(2):47-56.(GUO Bing,GUO Yanlin,LIU Feng,et al.Research on cyclic behavior of welded and bolted steel frames[J].Journal of Building Structures,2006,27(2):47-56.(in Chinese))
[12]聂建国,黄远,樊健生.考虑楼板组合作用的方钢管混凝土组合框架受力性能试验研究[J].建筑结构学报,2011,32(3):99-108.(NIE Jianguo,HUANG Yuan,FAN Jianshe.Experimental study on load-bearing behavior of rectangular CFST frame considering composite action of floor slab[J].Journal of Building Structures,2011,32(3):99-108.(in Chinese))
[13]聂建国,王宇航.基于ABAQUS的钢-混凝土组合结构纤维梁模型的开发及应用[J].工程力学,2012,29(1):70-80.(Nie Jianguo,Wang Yuhang.Development and application of steel-concrete composite fiber beam model in ABAQUS platform[J].Engineering Mechanics,2012,29(1):70-80.(in Chinese))
[14]Kim S E,Lee D H,Cuong N H.Shaking table tests of a two-story un-braced steel frame[J].Journal of Constructional Steel Research,2007,63(3):412-421.
[15]李洪泉,贲庆国,于之绰,张跃强,吕西林.钢框架结构在地震作用下累积损伤分析及试验研究[J].建筑结构学报,2004,25(3):69-74.(LI Hongquan,BEN Qingguo,YU Zhichuo,ZHANG Yueqiang,LU Xilin.Analysis and experiment of cumulated damage of steel frame structures under earthquake action[J].Journal of Building Structures,2004,25(3):69-74.(in Chinese))
[16]GB 50011—2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.(GB 50011—2001 Code for seismic design of buildings[S].Beijing:China Architecture&Building Press,2001.(in Chinese))
[17]JGJ 101—1996建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997.(JGJ 101—1996Specification of testing methods for earthquake resistant building[S].Beijing:China Architecture&Building Press,1997.(in Chinese))
[18]Vamvatsikos D,Cornell C A.Incremental dynamic analysis[J].Earthquake Engineering and Structural Dynamics,2002,31(3):491-514.
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