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FOURTH NATIONAL WORKSHOP ON BRIDGE RESEARCH IN PROGRESS:
 
RESEARCH ABSTRACT
 
Title:
An In-Situ Aluminum Girder Highway Bridge Test and Laboratory Fatigue Tests
Author(s) and Affiliation(s):
Robert E. Abendroth and Wallace W. Sanders, Jr. Department of Civil Engineering Iowa State University, Ames, IA
Principal Investigator:
Robert E. Abendroth and Wallace W. Sanders, Jr.
Sponsor(s):
Iowa Department of Transportation and the Federal Highway Administration
Research Start Date:
August 19, 1993
Expected Completion Date:
June 30, 1996
Research Objectives:
The two primary objectives of the research were to establish the response of an aluminum girder highway bridge to truck wheel loads and to evaluate the fatigue strength of weld details in full-scale aluminum girders. The first objective involved the confirmation of the applicability of the wheel load distribution criteria contained in current bridge design specifications for a particular aluminum girder concrete deck bridge; the second objective involved the confirmation of specification models of stress range versus load cycle (S-N) behavior for Category E weld details on aluminum girders.
Expected Products or Deliverables:
The research will establish the influence of selected design parameters on the wheel load distribution for a particular aluminum girder bridge and provide additional data to evaluate the fatigue strength of Category E weld details in full-scale, aluminum girders. The field and laboratory test results will provide needed information on the performance and effectiveness of aluminum as a primary structural material for bridge construction.

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