高强混凝土剪力墙地震损伤模型分析
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摘要
在分析比较现有钢筋混凝土结构的地震损伤模型的基础上,根据高强混凝土剪力墙的滞回曲线特性及刚度退化规律,采用能量耗散系数和最大变位处的卸载刚度的退化为破坏参数,提出了适用于高强混凝土剪力墙构件的双参数地震损伤模型。依据已有的高强混凝土剪力墙构件试验研究结果,对损伤模型进行非线性回归分析,确定了相应的地震损伤模型参数,提出了高强混凝土剪力墙各性能水平的损伤指数以及相应于三水准抗震设防的损伤指数允许值。分析结果表明,按本文所提出的损伤模型计算得到的剪力墙构件最终破坏时对应的损伤指数,其平均值在合理范围内,标准差较小;损伤指数计算值对应的损伤程度基本符合试验结果,计算结果离散程度较低。
By analyzing and comparing the existing earthquake damage model of reinforced concrete structure,and based on the hysteretic characteristic and the degradation rules of unloading stiffness of high-strength concrete shear wall,a two-parameter earthquake damage model is presented by cumulative energy dissipation and unloading stiffness degeneration corresponding to the maximum deformation.Based on the experimental study of high-strength concrete shear walls,two modeling parameters are obtained by nonlinear regression analysis.The damage indexes are proposed for different performance levels of high-strength concrete shear wall,and the damage index allowance of three-level seismic design are suggested.The results show that according to the damage model proposed by this paper,the average value of damage index calculated for the shear wall finally destroyed is in the reasonable range,and the standard deviation is low.The degree of damage corresponding to the calculation of damage index is basically consistent with the experimental results,and the discrete degree of calculation results is low.
By analyzing and comparing the existing earthquake damage model of reinforced concrete structure,and based on the hysteretic characteristic and the degradation rules of unloading stiffness of high-strength concrete shear wall,a two-parameter earthquake damage model is presented by cumulative energy dissipation and unloading stiffness degeneration corresponding to the maximum deformation.Based on the experimental study of high-strength concrete shear walls,two modeling parameters are obtained by nonlinear regression analysis.The damage indexes are proposed for different performance levels of high-strength concrete shear wall,and the damage index allowance of three-level seismic design are suggested.The results show that according to the damage model proposed by this paper,the average value of damage index calculated for the shear wall finally destroyed is in the reasonable range,and the standard deviation is low.The degree of damage corresponding to the calculation of damage index is basically consistent with the experimental results,and the discrete degree of calculation results is low.
引文
[1]Powell G H,Allchababadi R.Seismic damage prediction by deterministic methods:Concept and procedures[J].Earthquake Engineering andStructural Dynamics,1988,16:719-734.
[2]Banon H,Biggs J M,Irvine H M.Seismic damage in reinforced concrete frames[J].Journal of Structural Engineering,ASCE,1981,107(9):1713-1792.
[3]Roufaiel M S L,Meyer C.Analytical modeling of hysteretic behavior of RC frames[J].Journal of Structural Engineering,ASCE,1987,113(3):429-444.
[4]Krawinkler H,Zohrei M.Cumulative damage in steel structures subjected to earthquake ground motion[J].Computers and atructures.1983,16(14):531-541.
[5]Stephen J E,Yao J T P.Damage assessment using response measurement[J].Journal of Structural Engineering,ASCE,1987,113(4):787-801.
[6]Wang M L,Shan S P,Yao J T P.Reinforce concrete hysteretic model based on the damage concept[J].Earthquake Engineering and StructuralDynamics,1987,15(8):993-1003.
[7]Sameh S F Mehanny,Gregory G Deierlein.Seismic damage and collapse assessment of composite moment frames[J].Journal of Structural Engi-neering,ASCE,2001,127(9):1045-1053.
[8]Darwin D,Nmai C K.Energy dissipation in RC beams under cyclic load[J].J.Stuc.Engrg.ASCE,1986,112(8):1826-1846.
[9]Gosain N K,Brown R H,Jirso J O.Shear requirements for load reversals on RC members[J].Journal of Structural Engineering,ASCE,1977,103(7):1461-1476.
[10]Kratzig W,Meyer I F,Meskouris K.Damage evolution in reinforced concrete members under cyclic loading[C]∥Proc.5th Int.Conf.on Structur-al Safety and Reliability(ICOSSAR 89),San Francisco CA,1989,Ⅱ:795-802.
[11]Park YJ,Ang HS.Mechanistic seismic damage model for reinforced conceete[J].Journalof Structure Engineering,ASCE,1985,111(4):722-739.
[12]江近仁,孙景江.砖结构的地震破坏模型[J].地震工程与工程震动,1987,7(1):20-26.JIANG Jinren,SUN Jingjiang.Earthquake damage model of brick structure[J].Journal of Earthquake Engineering and Engineering Vibration,1987,7(1):20-26.(in Chinese)
[13]牛狄涛,任利杰.改进的钢筋混凝土双参数地震破坏模型[J].地震工程与工程震动,1996,16(4):44-54.NIU Ditao,REN Lijie.A modified seismic damage model with double variables for reinforced concrete structure[J].Journal of Earthquake Engi-neering and Engineering Vibration,1996,16(4):44-54.(in Chinese)
[14]李军旗,赵世春.钢筋混凝土构件损伤模型[J].兰州铁道学院月报,2000,7(1):25-27.LI Junqi,ZHAO Shichun.Damage model of reinforced concrete member[J].Journal of Lanzhou Railway University,2000,7(1):25-27.(inChinese)
[15]吕大刚,王光远.基于损伤性能的抗震结构最优设防水准的决策方法[J].土木工程学报,2001,7(1):44-49LU Dagang,WANG Guangyuan.Decision-making method of optimal fortification level for aseismic structures based on damage pformance[J].China Civil Engineering Journal,2001,7(1):44-49.(in Chinese)
[16]梁兴文,邓明科,张兴虎,等.高性能混凝土剪力墙性能设计理论的试验研究[J].建筑结构学报,2007,28(5):80-88.LIANG Xingwen,DENG Mingke,ZHANG Xinghu,et al.Experimental study on performance-based seismic design of high performance concreteshear wall[J].Journal of Building Structures,2007,28(5):80-88.(in Chinese)
[17]梁兴文,杨鹏辉,崔晓玲,等.带端柱高强混凝土剪力墙抗震性能试验研究[J].建筑结构学报,2010,31(1):23-32.LIANG Xingwen,YANG Penghui,CUI Xiaoling,et al.Experimental studies on seismic behavior of high strength concrete shear wall with bounda-ry conlumns[J].Journal of Building Structures,2010,31(1):23-32.(in Chinese)
[18]梁兴文,马恺泽,李菲菲,等.型钢高强混凝土剪力墙抗震性能试验研究[J].建筑结构学报,2011,32(6):68-75.LIANG Xingwen,MA Kaize,LI Feifei,et al.Experimental study on seismic behavior of SHSC structural walls[J].Journal of Buliding Structures,2011,32(6):68-75.(in Chinese)
[19]姚谦峰,马静,黄炜.密肋复合墙体双参数地震损伤模型研究[J].西安交通大学学报,2007,41(7):852-856.YAO Qianfeng,MA Jing,HUANG Wei.Two-Parameter earthquake damage model of multi-ribbed composite wall[J].Journal of Xi’an JiaoTong University,2007,41(7):852-856.(in Chinese)
[20]GB50011—2010建筑抗震设计规范[S].GB 50011—2010 Code for Seismic Design of Buildings[S].(in Chinese)
[21]JGJ3—2010高层建筑混凝土结构技术规程[S].JGJ 3—2010 Technical Specification for Concrete Structures of Tall Buildings[S].(in Chinese)
[2]Banon H,Biggs J M,Irvine H M.Seismic damage in reinforced concrete frames[J].Journal of Structural Engineering,ASCE,1981,107(9):1713-1792.
[3]Roufaiel M S L,Meyer C.Analytical modeling of hysteretic behavior of RC frames[J].Journal of Structural Engineering,ASCE,1987,113(3):429-444.
[4]Krawinkler H,Zohrei M.Cumulative damage in steel structures subjected to earthquake ground motion[J].Computers and atructures.1983,16(14):531-541.
[5]Stephen J E,Yao J T P.Damage assessment using response measurement[J].Journal of Structural Engineering,ASCE,1987,113(4):787-801.
[6]Wang M L,Shan S P,Yao J T P.Reinforce concrete hysteretic model based on the damage concept[J].Earthquake Engineering and StructuralDynamics,1987,15(8):993-1003.
[7]Sameh S F Mehanny,Gregory G Deierlein.Seismic damage and collapse assessment of composite moment frames[J].Journal of Structural Engi-neering,ASCE,2001,127(9):1045-1053.
[8]Darwin D,Nmai C K.Energy dissipation in RC beams under cyclic load[J].J.Stuc.Engrg.ASCE,1986,112(8):1826-1846.
[9]Gosain N K,Brown R H,Jirso J O.Shear requirements for load reversals on RC members[J].Journal of Structural Engineering,ASCE,1977,103(7):1461-1476.
[10]Kratzig W,Meyer I F,Meskouris K.Damage evolution in reinforced concrete members under cyclic loading[C]∥Proc.5th Int.Conf.on Structur-al Safety and Reliability(ICOSSAR 89),San Francisco CA,1989,Ⅱ:795-802.
[11]Park YJ,Ang HS.Mechanistic seismic damage model for reinforced conceete[J].Journalof Structure Engineering,ASCE,1985,111(4):722-739.
[12]江近仁,孙景江.砖结构的地震破坏模型[J].地震工程与工程震动,1987,7(1):20-26.JIANG Jinren,SUN Jingjiang.Earthquake damage model of brick structure[J].Journal of Earthquake Engineering and Engineering Vibration,1987,7(1):20-26.(in Chinese)
[13]牛狄涛,任利杰.改进的钢筋混凝土双参数地震破坏模型[J].地震工程与工程震动,1996,16(4):44-54.NIU Ditao,REN Lijie.A modified seismic damage model with double variables for reinforced concrete structure[J].Journal of Earthquake Engi-neering and Engineering Vibration,1996,16(4):44-54.(in Chinese)
[14]李军旗,赵世春.钢筋混凝土构件损伤模型[J].兰州铁道学院月报,2000,7(1):25-27.LI Junqi,ZHAO Shichun.Damage model of reinforced concrete member[J].Journal of Lanzhou Railway University,2000,7(1):25-27.(inChinese)
[15]吕大刚,王光远.基于损伤性能的抗震结构最优设防水准的决策方法[J].土木工程学报,2001,7(1):44-49LU Dagang,WANG Guangyuan.Decision-making method of optimal fortification level for aseismic structures based on damage pformance[J].China Civil Engineering Journal,2001,7(1):44-49.(in Chinese)
[16]梁兴文,邓明科,张兴虎,等.高性能混凝土剪力墙性能设计理论的试验研究[J].建筑结构学报,2007,28(5):80-88.LIANG Xingwen,DENG Mingke,ZHANG Xinghu,et al.Experimental study on performance-based seismic design of high performance concreteshear wall[J].Journal of Building Structures,2007,28(5):80-88.(in Chinese)
[17]梁兴文,杨鹏辉,崔晓玲,等.带端柱高强混凝土剪力墙抗震性能试验研究[J].建筑结构学报,2010,31(1):23-32.LIANG Xingwen,YANG Penghui,CUI Xiaoling,et al.Experimental studies on seismic behavior of high strength concrete shear wall with bounda-ry conlumns[J].Journal of Building Structures,2010,31(1):23-32.(in Chinese)
[18]梁兴文,马恺泽,李菲菲,等.型钢高强混凝土剪力墙抗震性能试验研究[J].建筑结构学报,2011,32(6):68-75.LIANG Xingwen,MA Kaize,LI Feifei,et al.Experimental study on seismic behavior of SHSC structural walls[J].Journal of Buliding Structures,2011,32(6):68-75.(in Chinese)
[19]姚谦峰,马静,黄炜.密肋复合墙体双参数地震损伤模型研究[J].西安交通大学学报,2007,41(7):852-856.YAO Qianfeng,MA Jing,HUANG Wei.Two-Parameter earthquake damage model of multi-ribbed composite wall[J].Journal of Xi’an JiaoTong University,2007,41(7):852-856.(in Chinese)
[20]GB50011—2010建筑抗震设计规范[S].GB 50011—2010 Code for Seismic Design of Buildings[S].(in Chinese)
[21]JGJ3—2010高层建筑混凝土结构技术规程[S].JGJ 3—2010 Technical Specification for Concrete Structures of Tall Buildings[S].(in Chinese)
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