ANALYSIS OF ELASTOMERIC BRIDGE BEARINGS. INTERIM REPORT

A two-dimensional nonlinear p-version finite element method is developed for the analysis of boundary value problems relevant to elastomeric bridge bearings. The method incorporates polynomial shape functions of the hierarchic type for the modeling of large-deformations rubber elasticity. In addition, a frictional-contact algorithm based on a penalty formulation and suitable for the interaction of the pad with rigid flat surfaces is derived and implemented. The J sub 2 flow theory with isotropic hardening is utilized to model the reinforcing steel as a bilinear elastoplastic material. Examples are presented to illustrate the performance of the element and some guidelines for the selection of appropriate orders of interpolation and integration rules. The results of a study performed to examine the effects of several design parameters of the bearing are presented. Comparisons with experimental findings are shown. A dynamic lumped model for the walking of the bearing is developed. Viscous frictional interfaces with the girder and the abutment are included. Several cases are analyzed to investigate the factors that affect this phenomenon.

• Record URL:
  • https://library.ctr.utexas.edu/digitized/texasarchive/phase1/1304-5.pdf
• Supplemental Notes:
  • Research study title: Elastomeric Bearings.
• Corporate Authors:

  University of Texas, Austin

  Center for Transportation Research, 3208 Red River Street
  Austin, TX  United States  78705

  Texas Department of Transportation

  Research and Technology Transfer Office, P.O. Box 5051
  Austin, TX  United States  78763-5051

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Hamzeh, O
  • Tassoulas, J L
  • Becker, E B
• Publication Date: 1995-8

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 157 p.

Subject/Index Terms

• TRT Terms: Algorithms; Boundary value problems; Bridge bearing pads; Bridge bearings; Elastomers; Finite element method; Mathematical models; Mechanical elasticity; Rubber
• Uncontrolled Terms: Slippage
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00720273
• Record Type: Publication
• Report/Paper Numbers: FHWA/TX-95-1304-5, Res Rept 1304-5, CTR 0-1304-5
• Contract Numbers: Study 0-1304
• Files: TRIS, USDOT, STATEDOT
• Created Date: Apr 24 1996 12:00AM