基于改进直接刚度法的损伤评估试验研究
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摘要
应用改进的直接刚度法对简支梁试验和12层框架振动台模型试验的损伤情况进行了实测数据的初步评估。通过将识别结果与试验报告中不同工况下的损伤描述进行对比,发现文中建议的改进直接刚度法对弯曲类结构的累积损伤进行初步评估是可行和有效的。
The preliminary damage assessments for simply supported beams and shaking table tests of a 12-story RC frame model were conducted with the improved direct stiffness calculation( DSC) method and the measured data. Through comparing the assessment results with the damage descriptions under different operating conditions in the test reports,it was demonstrated that the improved DSC method used to assess preliminarily cumulative damages of bending type structures is feasible and effective.
The preliminary damage assessments for simply supported beams and shaking table tests of a 12-story RC frame model were conducted with the improved direct stiffness calculation( DSC) method and the measured data. Through comparing the assessment results with the damage descriptions under different operating conditions in the test reports,it was demonstrated that the improved DSC method used to assess preliminarily cumulative damages of bending type structures is feasible and effective.
引文
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[18]阳洋,Mosalam K M,金国芳,等.基于改进直接刚度法的加州某桥梁结构损伤评估研究[J].工程力学,2012,29(1):114-120.YANG Yang,Mosalam K M,JIN Guo-fang,et al.Research on damage evaluation of highway bridge structure in california using improved direct stiffness method[J].Engineering Mechanics,2012,29(1):114-120.
[19]黄盛楠.钢筋混凝土梁桥损伤识别方法的研究[D].北京:清华大学,2008:61-70.
[20]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].http://risedr.tongji.edu.cn/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.
[2]邹春蓉,唐英,张三峰,等.基于模态应变能法的梁桥结构损伤识别研究[J].铁道建筑,2012(10):4-6.ZOU Chun-rong,TANG Ying,ZHANG San-feng,et al.Study on girder bridge structure damage identification based on modal strain energy method[J].Railway Engineering,2012(10):4-6.
[3]惠嘉,万小朋,赵美英.基于改进的模态应变能法的复合材料层合板损伤模式诊断[J].机械科学与技术,2012,31(2):201-205.HUI Jia,WAN Xiao-peng,ZHAO Mei-ying,The detection of damage modes in the composite laminates using the improved modal strain energy method[J].Mechanical Science and Technology for Aerospace Engineering,2012,31(2):201-205.
[4]王利恒.基于应变信号的复合材料层合板低速冲击损伤识别研究[J].工程力学,2014(31):231-236.WANG Li-heng.Low velocity impact Damage identification of composite laminate using dynamic strain signals[J].Engineering Mechanics,2014(31):231-236.
[5]曹晖,郑星,华建民,等.基于非线性振动特性的预应力混凝土梁损伤识别[J].工程力学,2014(31):190-194.CAO Hui,ZHENG Xing,HUA Jian-min,et al.Damage detection of prestressed concrete beams based on nonlinear dynamic characteristics[J].Engineering Mechanics,2014(31):231-236.
[6]Niemann H,Morlier J,Shahdin A,et al.Damage localization using experimental modal parameters and topology optimization[J].Mechanical Systems and Signal Processing,2010,24:636-652.
[7]陆熙,霍达.应用曲率模态理论识别实桥模型损伤的研究[J].土木工程学报,2005,35(8):61-66.LU Xi,HUO Da.Study of real bridge model damage detection based on curvature model theory[J].China Civil Engineering Journal,2005,35(8):61-66.
[8]曾雅颖,周奎.基于曲率模态和柔度曲率的梁结构损伤识别[J].武汉理工大学学报,2013,35(5):99-104.ZENG Ya-ying,ZHOU Kui.Damage identification of beamtype structure based on modal flexibility and modal curvature[J].Journal of Wuhan University of Technology,2013,35(5):99-104.
[9]谈志成,马中军,张铟,基于局部刚度识别和曲率模态的梁结构状态预警方法[J].西安建筑科技大学学报(自然科学版),2013,45(6):847-852.TAN Zhi-cheng,MA Zhong-jun,ZHANG Yin.Beam early warning method based on local stiffness detection and mode shape curvature[J].Xi'an University of Architecture and Technology(Natural Science Edition),2013,45(6):847-852.
[10]刘宇飞,辛克贵,移动荷载激励下基于平均曲率模态的简支梁局部损伤识别[J].工程力学,2013,30(7):205-211.LIU Yu-fei,XIN Ke-gui,Local damage detection of simple supported beam on the excitation o moving load based on average curvature modal[J].Engineering Mechanics,2013,30(7):205-211.
[11]Maeck J.Damage assessment of civil engineering structure by vibration monitoring[D].Ph.D thesis,Department of Civil Engineering,K.U.Leuven,2003.
[12]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.
[13]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.YANG Yang,ZHOU Xi-yuan,JIN Guo-fang,et al,Modified direct stiffness method for the damage detection of continuous beam-type structures[J].Engineering Mechanics,2010,27(7):82-91.
[14]Yang Yang,Mosalam K M,Liu He,et al.An improved direct stiffness calculation method for damage detection of beam structures[J].Structural Control and Health Monitoring,2013,20(5):835-851.
[15]阳洋,周锡元,金国芳,等.框架结构基于改进直接刚度法的地震损伤评估[J].振动与冲击,2011,30(2):199-204.YANG Yang,ZHOU Xi-yuan,JIN Guo-fang,et al.Modified direct stiffness calculation method for seismic damage assessment of frame structures[J].Journal of Vibration and Shock,2011,30(2):199-204.
[16]阳洋,金国芳,周锡元,等.基于改进直接刚度法的框架结构地震累积损伤评估[J].四川大学学报(工程科学版),2011,43(1):43-50.YANG Yang,JIN Guo-fang,ZHOU Xi-yuan,et al.Cumulative seismic damage assessment of reinforced concrete frame model based on improved direct stiffness method[J].Journal of Sichuan University:Engineering Science Edition,2011,43(1):43-50.
[17]阳洋,Mosalam K M,周锡元.Open Sees系统识别工具箱初步原理及其应用[D].上海:同济大学,2010:113-172.
[18]阳洋,Mosalam K M,金国芳,等.基于改进直接刚度法的加州某桥梁结构损伤评估研究[J].工程力学,2012,29(1):114-120.YANG Yang,Mosalam K M,JIN Guo-fang,et al.Research on damage evaluation of highway bridge structure in california using improved direct stiffness method[J].Engineering Mechanics,2012,29(1):114-120.
[19]黄盛楠.钢筋混凝土梁桥损伤识别方法的研究[D].北京:清华大学,2008:61-70.
[20]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].http://risedr.tongji.edu.cn/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.
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