Experimental Investigation of Skewed Elastomeric Expansion Bridge Bearings

Allen, Gregory D; Murray, Thomas M.,

i

Experimental Investigation of Skewed Elastomeric Expansion Bridge Bearings

1987-04-01
By Allen, Gregory D ; Murray, Thomas M.,

File Language:

English

Details

Creators:

Allen, Gregory D ; Murray, Thomas M.,
Corporate Creators:

University of Oklahoma, Norman
Corporate Contributors:

Oklahoma. Department of Transportation. Research & Development Division ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Bridge Engineering Bridges Elastomers Expansion Device Shear Modulus Skew Bridges Stiffness
Publication/ Report Number:

FHWA/OK 87(3)
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Executive Summary Jan, 85 - April'87
Corporate Publisher:

Oklahoma. Department of Transportation
Abstract:

Twelve skewed elastomeric expansion bridge bearings were supplied by the Oklahoma Department of Transportation. To evaluate the performance of these skewed bearings, the following six phases of testing were conducted on each of the twelve bearings: I. Shear and compressive stiffness tests, II. Fatigue cycles representing 50 years of service with parallel bearing surfaces, III. Shear and compressive stiffness tests, IV. Shear stiffness tests with bearings at sub-freezing temperatures, V. Fatigue cycles representing 50 years of service with rotated bearing surfaces, and VI. Shear stiffness tests Phase I formed the basis of comparison with the post-fatigue results from Phases III and VI, and the low temperature tests from Phase IV. It was found that the fatigue loading with parallel bearing surfaces had very little effect on the compressive and shear stiffnesses of the skewed bearings. Some degradation of shear stiffness was found after the fatigue loading with rotated bearing surfaces, Phase V. However, the combined degradation due to both fatigue loadings was considered insignificant.
Format:

PDF
Funding:

034, 84-11-2
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:4efa2b73533cc2889014df824e003e9966a1c30d081afba1d54e3ccfcb77c71181a073edab72511cc3eb71baaf14ba8bbdde8be19da062abb56fe537cb2773c7
Download URL:

https://rosap.ntl.bts.gov/view/dot/89312/dot_89312_DS1.pdf
File Type:

[PDF - 1.41 MB ]

File Language:

English

ON THIS PAGE

Details Related Documents

ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.