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多参考点脉冲锤击法识别桥梁模态柔度的实践

, PP. 46-56

Keywords: 桥梁工程,模态柔度,多参考点脉冲锤击法,结构识别,动力信号分析

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Abstract:

?为了验证利用多参考点脉冲锤击法识别桥梁模态柔度的理论和实现方法,利用1根3个自由度悬臂梁结构验证了该理论和方法的可行性,并将该方法应用到实际桥梁的结构识别中,对2座旧桥分别进行了多参考点脉冲锤击法动力试验以及相应的静载试验。通过对钢-混凝土组合结构桥梁的模态试验,研究了多种参考点的选择方法,以比较参考点选择的不同对桥梁柔度计算结果的影响。研究结果表明:利用从多参考点脉冲锤击法动力实测数据的频响函数中直接获取的模态柔度,可估算结构在载荷下的位移,将其与结构静载试验获得的结构位移进行对比,结果可作为桥梁结构状况和性能评估的有效指标,并能成功实现对桥梁损伤位置的识别。

References

[1]  吉伯海,傅中秋.近年国内桥梁倒塌事故原因分析[J].土木工程学报,2010,43(增):495-498. JI Bo-hai,FU Zhong-qiu.Analysis of Chinese Bridge Collapse Accident Causes in Recent Years[J].China Civil Engineering Journal,2010,43(S):495-498.
[2]  叶梅新,黄 琼.钢结构事故研究[J].长沙铁道学院学报,2002,20(4):6-10. YE Mei-xin,HUANG Qiong.Study of Steel Structure Accidents[J].Journal of Changsha Railway University,2002,20(4):6-10.
[3]  徐洪涛,郭国忠,蒲焕玲,等.我国近年来桥梁事故发生的原因与教训[J].中国安全科学学报,2007,17(11):90-95. XU Hong-tao,GUO Guo-zhong,PU Huan-ling,et al.Cause and Lessons of Bridge Accidents in China in Recent Years[J].China Safety Science Journal,2007,17(11):90-95.
[4]  AKTAN A E,MOON F L.ASCE-SEI Performance of Structures Track Technical Committee:Structural Identification of Constructed Systems[R].Reston:ASCE,2006.
[5]  DOEBLING S W,FARRAR,C R,PRIME M B,et al.Damage Identification and Health Monitoring of Structural and Mechanical Systems from Changes in Their Vibration Characteristics:A Literature Review[R].Los Alamos:Los Alamos National Laboratory,1996.
[6]  DOEBLING S W,FARRAR,C R,PRIME M B.A Summary Review of Vibration-based Damage Identification Methods[J].Shock and Vibration Digest,1998,30(2):91-105.
[7]  SOHN H,FARRAR C R,HERMEZ F M,et al.A Review of Structural Health Monitoring Literature from 1996-2001[R].Los Alamos:Los Alamos National Laboratory,2003.
[8]  BROWNJOHN J M W,MOYO P,OMENZETTER P,et al.Assessment of Highway Bridge Upgrading by Dynamics Testing and Finite-element Model Updating[J].Journal of Bridge Engineering,2003,8(3):162-172.
[9]  LUSCHER D L,BROWNJOHN J M W,SOHN H,et al.Modal Parameter Extraction of Z24 Bridge Data[C]//KISSIMMEE F L,BETHEL C T.Proceedings of the 19th International Modal Analysis Conference.Santa Barbara:IMAC,2001:836-841.
[10]  AVITABILE P.Modal Space Back to Basics:Is There a Difference Between a Roving Hammer and Roving Accelerometer Test[J].Experimental Techniques,1998,22(5):9-10.
[11]  REYNDERS E,DEGRAUWE D,DEROECK G D,et al.Combined Experimental-operational Modal Testing of Footbridges[J].Journal of Engineering Mechanics,2010,136(6):687-696.
[12]  GENTILE C,CABRERA F.Dynamic Investigation of a Repaired Cable-stayed Bridge[J].Earthquake Engineering and Structural Dynamics,1997,26(1):41-59.
[13]  ALLEMANG R J.Vibrations:Experimental Modal Analysis[M]//HARRIS C M.Shock and Vibration Handbook.4th ed.New York:McGraw-Hill,1996:1-79.
[14]  HOGUE T D,AKTAN A E,HOYOS A.Localized Identification of Constructed Facilities[J].Journal of Structural Engineering,1991,117(1):128-148.
[15]  RAGHAVENDRACHAR M,AKTAN A E.Flexibility by Multi-reference Impact Testing for Bridge Diagnostics[J].Journal of Structural Engineering,1992,118(8):2186-2203.
[16]  AKTAN A E,CATBAS N,TURER A,et al.Structural Identification:Analytical Aspects[J].Journal of Structural Engineering,1998,124(7):817-829.
[17]  CATBAS F N,AKTAN A E.Condition and Damage Assessment:Issues and Some Promising Indices[J].Journal of Structural Engineering,2002,128(8):1026-1036.
[18]  CATBAS F N,BROWN D L,AKTAN A E.Parameter Estimation for Multiple-input Multiple-output Modal Analysis of Large Structures[J].Journal of Engineering Mechanics,2004,130(8):921-930.
[19]  CATBAS F N,BROWN D L,AKTAN A E.Use of Modal Flexibility for Damage Detection and Condition Assessment:Case Studies and Demonstrations on Large Structures[J].Journal of Structural Engineering,2006,132(11):1699-1712.
[20]  沈 松,应怀樵,雷速华,等.用锤击法和变时基技术进行黄河铁路桥的模态试验分析[J].振动工程学报,2000,13(3):492-495. SHEN Song,YING Huai-qiao,LEI Su-hua,et al.Modal Test for Yellow River Bridge Exciting with Hammer[J].Journal of Vibration Engineering,2000,13(3):492-495.
[21]  ZHOU Y,PRADER J,DEVITIS J,et al.Rapid Impact Testing for Quantitative Assessment of Large Populations of Bridges[C]//FELIX W.Proceedings of Conference of Nondestructive Characterization for Composite Materials,Aerospace Engineering,Civil Infrastructure,and Homeland Security.San Diego:SPIE,2011:1-12.
[22]  CLOUGH R,PENZIEN J.Dynamics of Structure[M].New York:McGraw-Hill,1975.
[23]  周 云,蒋运忠,谢利民.桥面板分片子结构模态柔度综合理论与试验[J].中国公路学报,2015,28(4):35-43. ZHOU Yun,JIANG Yun-zhong,XIE Li-ming.Sub-structural Modal Flexibility Integration Theory and Experiment of Bridge Deck[J].China Journal of Highway and Transport,2015,28(4):35-43.
[24]  ZHOU Y,PRADER J,WEIDNER J,DUBBS N,et al.Structural Identification of a Deteriorated Reinforced Concrete Bridge[J].Journal of Bridge Engineering,2012,17(5):774-787.
[25]  JEFFREY S W.Structural Identification of a Complex Structure Using Both Conventional and Multiple Model Approaches[D].Philadelphia:Drexel University,2012.
[26]  ZHOU Y,PRADER J,DEITIS J,et al.Application of Rebound Controlled Drop Hammer for Multiple Reference Impact Test on Bridges[C]//BENEDETTINI F,GENTILE C,BUSATTA F,et al.Proceedings of EVACES 2011:Experimental Vibration Analysis for Civil Engineering Structures.Rarenna:EVACES,2011:1-8.

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