XIANG Changshen,DANG Cong,ZHOU Yu.Hinge Joint Damage Identification Method of Hollow Slab Bridge based on Hinge Joint Damage Degree[J].Journal of Disaster Prevention and Mitigation Engineering,2022,42(03):523-533.
XIANG Changshen,DANG Cong,ZHOU Yu.Hinge Joint Damage Identification Method of Hollow Slab Bridge based on Hinge Joint Damage Degree[J].Journal of Disaster Prevention and Mitigation Engineering,2022,42(03):523-533. DOI: 10.13409/j.cnki.jdpme.202004054.
Hinge Joint Damage Identification Method of Hollow Slab Bridge based on Hinge Joint Damage Degree
In order to identify the damage to hinge joints of hollow slab bridges, a hinge joint calculation model of the spring hinge link system is established based on force and deformation modes of hinge joints. The model considers the shear deformation and lateral deformation of hinge joints. Furthermore, the hinge joint model and the hollow slab form the calculation model of the hollow slab bridge structure. Based on the structural calculation model, the calculation method of damage degree of hinge joints is described, and the working performance of hinge joints is evaluated according to the damage degree. The accuracy and practicability of the method are verified by ANSYS numerical analyses and bridge tests. The results show that the damage identification method can accurately identify the damage of hinge joints in numerical simulation and actual bridges. Moreover, the calculation results of internal force at the hinge joint are in good agreement with numerical simulation. However, the calculated value of damage degree at the hinge joint is inversely proportional to the distance from the loading position to the damaged joint, so it is recommended that the loading position should be as close as possible to the hinge joint that may be damaged.
Chen Y C , Wu Q X , Chen B C . Failure mode of hinged joint in assembly voided slab bridge by finite element analysis [J]. Engineering Mechanics , 2014 , 31 ( Sup1 ): 51 - 58 . (in Chinese)
Hussein H H , Sargand S M , Khoury I , et al . Environment-induced behavior of transverse tie bars in adjacent prestressed box-girder bridges with partial depth shear keys [J]. Journal of Performance of Constructed Facilities , 2017 , 31 ( 5 ): 1 - 13 .
Zou Y S , Yuan B B , Wang Y H , et al . Damage identification of hinged joints of prefabricated slab bridges based on transient dynamics analysis [J]. Journal of Chongqing Jiaotong University (Natural Science) , 2011 , 30 ( 1 ): 1 - 3,43 . (in Chinese)
Song Y F , Sun Y , Yang L P . Experimental and Theoretical research on the mechanical characteristics and failure mode of the joint of hollow slab hollow slab bridge [J]. Journal of China & Foreign Highway , 2018 , 38 ( 2 ): 159 - 165 . (in Chinese)
Liu H , He X , Jiao Y . Damage identification algorithm of hinged joints for simply supported slab bridges based on modified hinge plate method and artificial bee colony algorithms [J]. Algorithms , 2018 , 11 ( 12 ): 198 - 212 .
Huang M S , Zhu H P . Study on mechanism and reinforcement processing of "single slab bearing " disease of hollow core slab beam bridge [J]. Journal of Huazhong University of Science and Technology(Natural Science Edition) , 2008 ( 2 ): 118 - 121 . (in Chinese)
Li G H , Shi D . Calculation of lateral distribution of highway bridge loads [M]. Beijing : People's Communications Press , 1987 : 87 - 95 . (in Chinese)
Li H J , Zhao S C , Li W H , et al . Progress in evaluation technology of transverse connection structure of existing assembled beam bridge [J]. Journal of China & Foreign Highway , 2014 , 34 ( 2 ): 124 - 128 . (in Chinese)
Yi H B , Li C X , Dai L . Experimental study on the shear performance of shallow hinge joints for prefabricated hollow slab bridges [J]. Advances in Civil Engineering , 2018 ( 2 ): 1 - 8 .
Liu X C , Wei J , Li P , et al . Load-transmitting performance evaluation method for hinge joint based on relative displacement [J]. Journal of Central South University (Science and Technology) , 2013 , 44 ( 8 ): 3377 - 3383 . (in Chinese)
Sun Z S , Zhang Y , Wang X D . Research on bridge damage detection nased on operational environment and lifting wavelet transform [J]. Journal of Disaster Prevention and Mitigation Engineering , 2014 , 34 ( 6 ): 60 - 66 . (in Chinese)
Zhou Y , Di S K , Wang L X , et al . Damage detection and life prediction of tied arch bridge based on flexibility-curvature-difference-rate [J]. Journal of Disaster Prevention and Mitigation Engineering , 2018 , 38 ( 6 ): 1033 - 1043 . (in Chinese)
Wen X , Lei W , Dan D , et al . Study on a measurement index of transverse collaborative working performance of prefabricated girder bridges [J]. Advances in Structural Engineering 2017 , 20 ( 12 ): 1879 ‑ 1890 .
Wu Q X , Huang W K , Chen B C , et al . Mechanical property of hinged voided slab with perforated steel plates at bottom of junction surface [J]. Journal of Traffic and Transportation Engineering , 2017 , 17 ( 4 ): 45 - 54 . (in Chinese)