框架结构基于改进直接刚度法的地震损伤评估
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摘要
对直接刚度法进行了改进,用于识别基于以弯曲变形为主的结构的截面刚度,此法可根据截面刚度在地震前后的变化情况进行结构的损伤评估。改进后的方法简单实用,按照该方法开发的OpenSees系统识别工具箱有望应用于实际工程。对同济大学土工程防灾国家重点实验室在2003年进行的12层钢筋混凝土标准框架的振动台试验后的动力性能测试结果进行了数值模拟和试验对比,然后应用OpenSees系统识别工具箱进行地震损伤评估,结果表明改进的直接刚度方法及其工具箱对受弯曲变形为主的结构进行初步评估是有效和可行的。
An improvement to the direct stiffness calculation(DSC) method for bending-type frame structures was proposed here,it could be used to conduct damage assessment.The corresponding system identification toolbox in the platform of OpenSees was expected to be used in engineering.The proposed improvement was simple,but apparently quite effective,the modification of the DSC method for damage detection and the system identification toolbox were applicable to practical bending-type frame structures.Aiming at the benchmark test of a 12-story reinforced concrete frame model performed on a shaking table in Tongji University,a simulation model for this benchmark test under excitation of several seismic waves was evaluated to verify the modified DSC technique and the system identification toolbox.The results showed that the preliminary assessment using the improved direct stiffness method and the corresponding system identification toolbox is feasible and efficient for damage detection of bending-type structures.
An improvement to the direct stiffness calculation(DSC) method for bending-type frame structures was proposed here,it could be used to conduct damage assessment.The corresponding system identification toolbox in the platform of OpenSees was expected to be used in engineering.The proposed improvement was simple,but apparently quite effective,the modification of the DSC method for damage detection and the system identification toolbox were applicable to practical bending-type frame structures.Aiming at the benchmark test of a 12-story reinforced concrete frame model performed on a shaking table in Tongji University,a simulation model for this benchmark test under excitation of several seismic waves was evaluated to verify the modified DSC technique and the system identification toolbox.The results showed that the preliminary assessment using the improved direct stiffness method and the corresponding system identification toolbox is feasible and efficient for damage detection of bending-type structures.
引文
[1]Chang P,Liu S C.Recent research in nondestructiveevaluation of civil infrastructures,J.Mater.Civ.Eng.,2003,15(3):298-304.
[2]Ma T W,Yang H T,Chang C C.Styuctural healthmonitoring using time-do-main residual generator technique.Proceedings of,4thInternational workshop on structural healthmonitoring,Stanford Univ.,Palo Alto,Calif.
[3]Catbas F N,Aktan A E.Condition and damage assessment:Issues and some promising indices.J.Struct.Eng.,2002,128(8):1026-1036.
[4]Jan D A.Structural health monitoring-What is theprescription[J].Mechanics Research Communications,2009,36(2):137-142.
[5]王利恒,周锡元,阎维明,等.无粘结预应力钢筋混凝土梁非线性动力特性试验研究.建筑结构,2008,38(10):68-72.
[6]Zhao J,Dewolf J T.Sensitivity study for vibrationalparameters used in damage detection.Journal of StructureEngineering,ASCE,1999,125(4):410-416.
[7]Alvandia A,Cremona C.Assessment of vibration-baseddamage identification techniques[J].Journal of Sound andVibration.2006,292:179-202.
[8]孙晓丹,欧进萍.基于动力检测的损伤指标评价方法[J].振动与冲击,2009,28(1):9-13.
[9]沈祖炎,董宝,曹文衔,结构损伤累积分析的研究现状和存在的问题[J].同济大学学报1997,25(2):135-140.
[10]Maeck J.Damage assessment of civil engineering structure byvibration monitoring,Ph.D thesis,Department of CivilEngineering,K.U.Leuven,2003.
[11]李永梅,周锡元,高向芋.基于柔度差曲率矩阵的结构损伤识别法[J].工程力学,2009,26(2):88-195.
[12]Lignon S,Jézéquel L.A robust approach for seismic damageassessment,Computer&Structures,2007,85(4):4-14.
[13]何浩祥,闫维明,乔亚玲.物元分析理论在钢筋混凝土结构地震损伤评估中的应用[J].北京工业大学学报,2006,32(9):791-797.
[14]Ma TW,Yang HT,Chang C C.Structural damage diagnosisand assessment under seismic excitations[J].Journal ofengineering mechanics,2005,131(10):1036-1045.
[15]吕西林,李培振,陈跃庆.12层钢筋混凝土标准框架振动台模型试验的完整数据[R].同济大学土木工程与防灾国家重点实验室振动台试验研究报告,2003.
[16]王利恒.基于线形及非线性动力特性的桥梁结构非破损检测研究[D].北京:北京工业大学,2006,248-257.
[17]阳洋,周锡元,金国芳,等.连续梁结构损伤识别的改进直接刚度方法研究[J].工程力学,2010,27(7):82-91.
[18]周定松.混凝土框架结构基于性能的抗震设计方法[D].上海:同济大学2004:62-89.
[19]张松.框架-剪力墙结构基于性能的抗震设计方法[D].上海:同济大学,2009:165-167.
[2]Ma T W,Yang H T,Chang C C.Styuctural healthmonitoring using time-do-main residual generator technique.Proceedings of,4thInternational workshop on structural healthmonitoring,Stanford Univ.,Palo Alto,Calif.
[3]Catbas F N,Aktan A E.Condition and damage assessment:Issues and some promising indices.J.Struct.Eng.,2002,128(8):1026-1036.
[4]Jan D A.Structural health monitoring-What is theprescription[J].Mechanics Research Communications,2009,36(2):137-142.
[5]王利恒,周锡元,阎维明,等.无粘结预应力钢筋混凝土梁非线性动力特性试验研究.建筑结构,2008,38(10):68-72.
[6]Zhao J,Dewolf J T.Sensitivity study for vibrationalparameters used in damage detection.Journal of StructureEngineering,ASCE,1999,125(4):410-416.
[7]Alvandia A,Cremona C.Assessment of vibration-baseddamage identification techniques[J].Journal of Sound andVibration.2006,292:179-202.
[8]孙晓丹,欧进萍.基于动力检测的损伤指标评价方法[J].振动与冲击,2009,28(1):9-13.
[9]沈祖炎,董宝,曹文衔,结构损伤累积分析的研究现状和存在的问题[J].同济大学学报1997,25(2):135-140.
[10]Maeck J.Damage assessment of civil engineering structure byvibration monitoring,Ph.D thesis,Department of CivilEngineering,K.U.Leuven,2003.
[11]李永梅,周锡元,高向芋.基于柔度差曲率矩阵的结构损伤识别法[J].工程力学,2009,26(2):88-195.
[12]Lignon S,Jézéquel L.A robust approach for seismic damageassessment,Computer&Structures,2007,85(4):4-14.
[13]何浩祥,闫维明,乔亚玲.物元分析理论在钢筋混凝土结构地震损伤评估中的应用[J].北京工业大学学报,2006,32(9):791-797.
[14]Ma TW,Yang HT,Chang C C.Structural damage diagnosisand assessment under seismic excitations[J].Journal ofengineering mechanics,2005,131(10):1036-1045.
[15]吕西林,李培振,陈跃庆.12层钢筋混凝土标准框架振动台模型试验的完整数据[R].同济大学土木工程与防灾国家重点实验室振动台试验研究报告,2003.
[16]王利恒.基于线形及非线性动力特性的桥梁结构非破损检测研究[D].北京:北京工业大学,2006,248-257.
[17]阳洋,周锡元,金国芳,等.连续梁结构损伤识别的改进直接刚度方法研究[J].工程力学,2010,27(7):82-91.
[18]周定松.混凝土框架结构基于性能的抗震设计方法[D].上海:同济大学2004:62-89.
[19]张松.框架-剪力墙结构基于性能的抗震设计方法[D].上海:同济大学,2009:165-167.
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