框架结构地震损伤评估与抗震设计
|
摘要
针对现行的结构抗震设计规范没有考虑双震中地震动对结构性能的影响问题,引入同时反映位移超越及能量耗散影响的双参数损伤模型进行结构损伤评估,可以更好地反映结构构件在不同类型地震动作用下的损伤发展规律.比较4种构件的双参数损伤模型,并对其中一种模型进行改进.对汶川地震中一典型的9层框架结构进行三维非线性地震响应分析,研究结构损伤规律.分析结果表明,结构主要的损伤积累发生在第一次主震中.结合现行抗震设计规范,提出一种直接基于目标损伤指标的结构抗震设计方法,通过一简单算例验证了该方法对大震作用下结构抗震设计的适用性.
The obvious dual-epicenter was not considered in the present seismic design code.An appropriate damage model should take both the damage caused by dissipated energy and displacement overpass into consideration in order to evaluate the progress of structural damage.Four damage models were described,and one of which was improved.Comparisons of the damage models were made in three-dimensional nonlinear dynamic analysis of a 9-storey reinforced concrete structure subjected to a real Wenchuan earthquake excitation.Results showed that damage in the structural members increased mainly in the first shock.A performance-based approach based on target damage index was proposed and verified in conjunction with present seismic design method for high level earthquake.
The obvious dual-epicenter was not considered in the present seismic design code.An appropriate damage model should take both the damage caused by dissipated energy and displacement overpass into consideration in order to evaluate the progress of structural damage.Four damage models were described,and one of which was improved.Comparisons of the damage models were made in three-dimensional nonlinear dynamic analysis of a 9-storey reinforced concrete structure subjected to a real Wenchuan earthquake excitation.Results showed that damage in the structural members increased mainly in the first shock.A performance-based approach based on target damage index was proposed and verified in conjunction with present seismic design method for high level earthquake.
引文
[1]国家减灾中心灾害信息部.汶川大地震与唐山大地震的对比[J].中国减灾,2008(7):46-47.Center of Disaster Reduction of MCA.Comparison ofWenchuan earthquake and Tangshan earthquake[J].Disaster Reduction in China,2008(7):46-47.
[2]清华大学、西南交通大学、北京交通大学土木工程结构专家组.汶川地震建筑震害分析[J].建筑结构学报,2008,29(4):1-9.Civil and Structural Groups of Tsinghua University,Xi-nan Jiaotong University and Beijing Jiaotong University.Analysis on seismic damage of buildings in the Wen-chuan earthquake[J].Journal of Building Structures,2008,29(4):1-9.
[3]李英民,韩军,刘立平,等.中日建筑结构专家汶川地震考察与研讨[C]//第8届中日建筑结构技术交流会论文集.北京:[s.n.],2008:51-56.LI Ying-min,HAN Jun,LIU Li-ping,et al.Investiga-tion and discussion on Wenchuan earthquake by Sino-Ja-pan experts of structure[C]∥8th Sino-Japan Workshopon Building Structures.Beijing:[s.n.],2008:51-56.
[4]马宝民.分析汶川“5.12”震害探求“大震不倒”途径[C]∥第8届中日建筑结构技术交流会论文集.北京:[s.n.],2008:68-78.MA Bao-min.Disaster analysis of Wenchuan earthquakeand approaching to escape from collapse of building[C]∥8th Sino-Japan Workshop on Building Structures.Beijing:[s.n.],2008:68-78.
[5]刘伯权,刘鸣.钢筋混凝土柱的破坏与能量吸收[J].地震工程与工程振动,1998,8(3):14-18.LIU Bo-quan,LIU Ming.Analysis of hysteretic energyin low cyclic fatigue experiment of RC column[J].Earthquake Engineering and Engineering Vibration,1998,8(3):14-18.
[6]杜宏彪,房营光,沈聚敏.空间钢筋混凝土框架结构的非弹性地震反应[J].地震工程与工程振动,1999,19(2):81-86.DU Hong-biao,FANG Ying-guang,SHEN Ju-min.Inelastic earthquake response of special reinforced con-crete frames[J].Earthquake Engineering and Engineer-ing Vibration,1999,19(2):81-86.
[7]逯静洲,林皋,王哲.混凝土经历荷载历史后损伤特性研究[J].烟台大学学报:自然科学与工程版,2004,17(4):277-287.LU Jing-zhou,LIN Gao,WANG Zhe.Study on damageof concrete due to loading history[J].Journal of YantaiUniversity:Natural Science and Engineering,2004,17(4):277-287.
[8]PARK Y J,ANG A H S,ASCE F.Mechanical seismicdamage model for reinforced concrete[J].Journal ofStructural Engineering,1985(111):722-739.
[9]KUNNATH S K.Analytical model of inelastic seismicresponse of R/C structures[J].Journal of StructuralEngineering,1990,116(4):996-1017.
[10]BRACCI J M,REINHORN A M,MANDER J B,etal.Deterministic model for seismic damage evaluationof RC structures[R].New York:State University ofNew York at Buffalo,1989.
[11]KUMAR S,USAMI T.Damage evaluation in steelbox columns by cyclic loading tests[J].Journal ofStructural Engineering,1996,122(6):626-634.
[12]李军旗,赵世春.钢筋混凝土构件损伤模型[J].兰州铁道学院学报:自然科学版,2000,19(3):25-27.LI Jun-qi,ZHAO Shi-chun.Damage model of reinforcedconcrete member[J].Journal of Lanzhou Railway Univer-sity:Natural Sciences,2000,19(3):25-27.
[13]欧进萍,何政,吴斌,等.钢筋混凝土结构基于地震损伤性能的设计[J].地震工程与工程振动,1999,19(1):21-30.OU Jin-ping,HE Zheng,WU Bin,et al.Seismic dam-age performance-based design of reinforced concretestructures[J].Earthquake Engineering and EngineeringVibration,1999,19(1):21-30.
[14]丁建,白国良,蒋建,等.钢筋混凝土框架结构直接基于损伤性能的抗震设计方法研究[J].世界地震工程,2007,23(4):199-204.DING Jian,BAI Guo-liang,JIANG Jian,et al.Research on seismic capacity design method of RCframe based on direct damage[J].World EarthquakeEngineering,2007,23(4):199-204.
[15]王丰.基于性能的结构多维抗震设计方法研究[D].大连:大连理工大学,2007.WANG Feng.Studies on performance-based seismicdesign methods of structures subjected to multi-dimen-sional earthquake excitations[D].Dalian:Dalian Uni-versity of Technology,2007.
[16]FAJFAR P,VIDIC T,FISCHINGER M.On energydemand and supply in SDOF system[M]∥Nonlinearseismic analysis and design of reinforced concrete build-ings.FAJFAR P,KRAWINKLER H.Amsterdam:Elsevier,1992.
[17]FAJFAR P,VIDIC T.Consistent inelastic designspectra:hysteretic and input energy[J].EarthquakeEngineering and Structural Dynamics,1994,23(5):523-537.
[18]COSENZA E,MANFREDI G,RAMASCO K.Anevaluation of the use of damage functional in earthquake-resistant design[C]∥9th European Conference Earth-quake Engineering.Moscow:[s.n.],1990:303-312.
[19]卓卫东,范立础.结构抗震设计中的强度折减系数研究[J].地震工程与工程振动,2001,21(1):84-88.ZHUO Wei-dong,FAN Li-chu.On strength reduc-tion factors used for seismic design of structures[J].Earthquake Engineering and Engineering Vibration,2001,21(1):84-88.
[2]清华大学、西南交通大学、北京交通大学土木工程结构专家组.汶川地震建筑震害分析[J].建筑结构学报,2008,29(4):1-9.Civil and Structural Groups of Tsinghua University,Xi-nan Jiaotong University and Beijing Jiaotong University.Analysis on seismic damage of buildings in the Wen-chuan earthquake[J].Journal of Building Structures,2008,29(4):1-9.
[3]李英民,韩军,刘立平,等.中日建筑结构专家汶川地震考察与研讨[C]//第8届中日建筑结构技术交流会论文集.北京:[s.n.],2008:51-56.LI Ying-min,HAN Jun,LIU Li-ping,et al.Investiga-tion and discussion on Wenchuan earthquake by Sino-Ja-pan experts of structure[C]∥8th Sino-Japan Workshopon Building Structures.Beijing:[s.n.],2008:51-56.
[4]马宝民.分析汶川“5.12”震害探求“大震不倒”途径[C]∥第8届中日建筑结构技术交流会论文集.北京:[s.n.],2008:68-78.MA Bao-min.Disaster analysis of Wenchuan earthquakeand approaching to escape from collapse of building[C]∥8th Sino-Japan Workshop on Building Structures.Beijing:[s.n.],2008:68-78.
[5]刘伯权,刘鸣.钢筋混凝土柱的破坏与能量吸收[J].地震工程与工程振动,1998,8(3):14-18.LIU Bo-quan,LIU Ming.Analysis of hysteretic energyin low cyclic fatigue experiment of RC column[J].Earthquake Engineering and Engineering Vibration,1998,8(3):14-18.
[6]杜宏彪,房营光,沈聚敏.空间钢筋混凝土框架结构的非弹性地震反应[J].地震工程与工程振动,1999,19(2):81-86.DU Hong-biao,FANG Ying-guang,SHEN Ju-min.Inelastic earthquake response of special reinforced con-crete frames[J].Earthquake Engineering and Engineer-ing Vibration,1999,19(2):81-86.
[7]逯静洲,林皋,王哲.混凝土经历荷载历史后损伤特性研究[J].烟台大学学报:自然科学与工程版,2004,17(4):277-287.LU Jing-zhou,LIN Gao,WANG Zhe.Study on damageof concrete due to loading history[J].Journal of YantaiUniversity:Natural Science and Engineering,2004,17(4):277-287.
[8]PARK Y J,ANG A H S,ASCE F.Mechanical seismicdamage model for reinforced concrete[J].Journal ofStructural Engineering,1985(111):722-739.
[9]KUNNATH S K.Analytical model of inelastic seismicresponse of R/C structures[J].Journal of StructuralEngineering,1990,116(4):996-1017.
[10]BRACCI J M,REINHORN A M,MANDER J B,etal.Deterministic model for seismic damage evaluationof RC structures[R].New York:State University ofNew York at Buffalo,1989.
[11]KUMAR S,USAMI T.Damage evaluation in steelbox columns by cyclic loading tests[J].Journal ofStructural Engineering,1996,122(6):626-634.
[12]李军旗,赵世春.钢筋混凝土构件损伤模型[J].兰州铁道学院学报:自然科学版,2000,19(3):25-27.LI Jun-qi,ZHAO Shi-chun.Damage model of reinforcedconcrete member[J].Journal of Lanzhou Railway Univer-sity:Natural Sciences,2000,19(3):25-27.
[13]欧进萍,何政,吴斌,等.钢筋混凝土结构基于地震损伤性能的设计[J].地震工程与工程振动,1999,19(1):21-30.OU Jin-ping,HE Zheng,WU Bin,et al.Seismic dam-age performance-based design of reinforced concretestructures[J].Earthquake Engineering and EngineeringVibration,1999,19(1):21-30.
[14]丁建,白国良,蒋建,等.钢筋混凝土框架结构直接基于损伤性能的抗震设计方法研究[J].世界地震工程,2007,23(4):199-204.DING Jian,BAI Guo-liang,JIANG Jian,et al.Research on seismic capacity design method of RCframe based on direct damage[J].World EarthquakeEngineering,2007,23(4):199-204.
[15]王丰.基于性能的结构多维抗震设计方法研究[D].大连:大连理工大学,2007.WANG Feng.Studies on performance-based seismicdesign methods of structures subjected to multi-dimen-sional earthquake excitations[D].Dalian:Dalian Uni-versity of Technology,2007.
[16]FAJFAR P,VIDIC T,FISCHINGER M.On energydemand and supply in SDOF system[M]∥Nonlinearseismic analysis and design of reinforced concrete build-ings.FAJFAR P,KRAWINKLER H.Amsterdam:Elsevier,1992.
[17]FAJFAR P,VIDIC T.Consistent inelastic designspectra:hysteretic and input energy[J].EarthquakeEngineering and Structural Dynamics,1994,23(5):523-537.
[18]COSENZA E,MANFREDI G,RAMASCO K.Anevaluation of the use of damage functional in earthquake-resistant design[C]∥9th European Conference Earth-quake Engineering.Moscow:[s.n.],1990:303-312.
[19]卓卫东,范立础.结构抗震设计中的强度折减系数研究[J].地震工程与工程振动,2001,21(1):84-88.ZHUO Wei-dong,FAN Li-chu.On strength reduc-tion factors used for seismic design of structures[J].Earthquake Engineering and Engineering Vibration,2001,21(1):84-88.
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