A Comparative Study of Elastomeric Materials for Bridge Bearing Pads

Details

• Creators:
  Sestak Jr, J J ; Aldridge, W W ; Fears, F K
• Corporate Creators:
  University of Oklahoma, Norman
• Corporate Contributors:
  Oklahoma Department of Highways ; United States. Department of Transportation. Federal Highway Administration. Bureau of Public Roads
• Subject/TRT Terms:
  Accelerated Tests Alternatives Analysis Bearing Tests Bridge Bearing Pads Compression Tests Deflection Tests Elastomers Repeated Loads Stresses
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Oklahoma Department of Highways
• Abstract:
  Elastomeric bearing pads of five different materials with shape factors ranging from one to six were subjected to a series of three specific tests to determine and compare their respective load-deformation characteristics. Compression-deflection tests were conducted to determine short time load-deflection responses for solid pads and laminated pads placed between bearing surfaces of concrete- and-concrete, concrete-and-steel, and steel-and-steel. Additional vertical deflections due to creep in the pad material subjected to a constant static compressive stress were measured over periods ranging from one to three weeks. Investigations were made to determine the effects of repetitive reversed horizontal shear forces acting on a bearing pad while loaded under a constant vertical compressive stress. An objective comparison was made of the materials tested. Recommendations for a design procedure using curves from the experimental data are outlined. Recommendations are made for future research.
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:ab126ae350d2a2a302cf81b7eca7727fd60a188a21ffcc99a1991fc244bdcdf629d63d7ccc2b305edb5568fc5e321ad8b611102af646ed3e1d333880405557a3
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/87791/dot_87791_DS1.pdf
• File Type:
  [PDF - 21.75 MB ]