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Home > Archive>Volume 44, Issue 12, 2016 >1828-1834. DOI:10.11908/j.issn.0253-374x.2016.12.004
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Experimental Study on Sliding Friction Behavior of Laminated Rubber Bearing and Its Mechanical Model
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    Abstract:

    Based on the typical damage of laminated rubber bearing sliding for small to mediumspan girder bridges during the Wenchuan Earthquake, experimental study on the sliding frictional behavior between bearing and steel plate was carried out. Effects of vertical stress and sliding velocity on the bearing sliding behavior were investigated. Results showed that the bearing displayed an approximately linear elastic shear response before sliding. The nominal shear modulus of the bearing ranged between 700 and 1 100 kPa. The coefficient of sliding friction at bearingsteel plate interface was negatively related to the vertical stress, and positively related to the sliding velocity. A mechanical model of the sliding behavior between laminated rubber bearing and steel plate was then developed, considering the effect of various parameters.

    Reference
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    [6] STEELMAN J S, FAHNESTOCK L A, FILIPOV E T, et al. Shear and Friction Response of Nonseismic Laminated Elastomeric Bridge Bearings Subject to Seismic Demands[J]. Journal of Bridge Engineering, 2012, 18(7): 612-623.
    [7] JT/T 663-2006, 公路桥梁板式橡胶支座规格系列[S].
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    [11] CONSTANTINOU M.C., MOKHA A., REINHORN A. Teflon Bearings in Base Isolation. II: Modeling. Journal of Structure Engineering, 1990, 116(2): 455-474.
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XIANG Nailiang, CUI Xiaxia, LI Jianzhong. Experimental Study on Sliding Friction Behavior of Laminated Rubber Bearing and Its Mechanical Model[J].同济大学学报(自然科学版),2016,44(12):1828~1834

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History
  • Received:February 19,2016
  • Revised:October 31,2016
  • Adopted:September 26,2016
  • Online: January 10,2017
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