Rotation Limits for Elastomeric Bearings

This report provides elastomeric bearing design procedures suitable for adoption in the AASHTO LRFD Bridge Design Specifications. The report details the experimental and analytical program used to develop the design procedures. The material in this report will be of immediate interest to bridge designers. Bridges experience translational movements and rotations caused by creep and shrinkage, thermal effects, traffic loading, initial construction tolerances, and other sources. Bridge bearings are designed and built to accommodate these movements and rotations while supporting required gravity loads and providing the necessary restraint to the structure. Elastomeric bearings accommodate movement and rotation by deformation of the elastomer. The bearing must be designed to control the strains and deformations in the elastomer to assure a long service life and good bearing performance.

[1]  O. H. Yeoh,et al.  Analysis of deformation and fracture of ‘pure shear’ rubber testpiece , 2001 .

[2]  Alan N. Gent,et al.  Compression, bending, and shear of bonded rubber blocks , 1970 .

[3]  L. E. Malvern.  Introduction to the mechanics of a continuous medium , 1969 .

[4]  S. M. Cadwell,et al.  Dynamic Fatigue Life of Rubber , 1940 .

[5]  O. Yeoh.  Some Forms of the Strain Energy Function for Rubber , 1993 .

[6]  Günther Meschke,et al.  Large-strain 3D-analysis of fibre-reinforced composites using rebar elements: hyperelastic formulations for cords , 1994 .

[7]  Alan N. Gent,et al.  Internal rupture of bonded rubber cylinders in tension , 1961, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[8]  John F. Stanton,et al.  Stability of Laminated Elastomeric Bearings , 1990 .

[9]  O. H. Yeoh,et al.  A new attempt to reconcile the statistical and phenomenological theories of rubber elasticity , 1997 .

[10]  R. Ogden.  Non-Linear Elastic Deformations , 1984 .

[11]  Charles Charles Rejcha.  Design of Elastomer Bearings , 1964 .

[12]  John F. Stanton,et al.  Performance of elastomeric bearings , 1987 .

[13]  Herbert A. Mang,et al.  A new 3-D finite element model for cord-reinforced rubber composites: application to analysis of automobile tires , 1993 .

[14]  A. Gent,et al.  Elastic Stability of Rubber Compression Springs , 1964 .

[15]  P B Lindley,et al.  Compression moduli for blocks of soft elastic material bonded to rigid end plates , 1979 .

[16]  Alan N. Gent,et al.  The Compression of Bonded Rubber Blocks , 1959 .

[17]  O. H. Yeoh,et al.  Measurement of rubber cutting resistance in the absence of friction , 1978 .

[18]  Leonard R. Herrmann,et al.  Nonlinear Behavior of Elastomeric Bearings. II: FE Analysis and Verification , 1988 .

[19]  S. Timoshenko.  Theory of Elastic Stability , 1936 .

[20]  Leonard R. Herrmann,et al.  Nonlinear behavior of elastomeric bearings, I: theory , 1988 .

[21]  O. H. Yeoh,et al.  Crack Growth in Twisted Rubber Disks. Part 3. Effects of Crack Depth and Location , 2003 .

[22]  Joseph A. Yura,et al.  ELASTOMERIC BRIDGE BEARINGS: RECOMMENDED TEST METHODS , 2001 .

[23]  O. H. Yeoh.  Some Benchmark Problems for FEA from Torsional Behavior of Rubber , 2003 .

[24]  John F. Stanton,et al.  LOW TEMPERATURE BEHAVIOR AND ACCEPTANCE CRITERIA FOR ELASTOMERIC BRIDGE BEARINGS , 1989 .

[25]  D E Lehman,et al.  COTTON DUCK BEARING PADS: ENGINEERING EVALUATION AND DESIGN RECOMMENDATIONS , 2003 .

[26]  M. Gurtin,et al.  An introduction to continuum mechanics , 1981 .