WHEEL LOADS FROM HIGHWAY BRIDGE STRAINS: FIELD STUDIES

Earlier papers describe impact studies on Six Mile Creek Bridge; this paper describes further field tests on the same bridge. It reports values of I, the impact fraction, in the range -0.19 - -1.25, consistent with the previous values, and uses these and other data to suggest suitable levels for the dynamic load component in the simple vehicle model. The paper also presents histories of dynamic axle loads and subjects them to spectral analysis. It was found that as trucks' weights increase, although the maximum dynamic bending moment increases, the ratio of the moment to the total truck weight reduces. The ratio of the comuputed static bending moment to the total truck weight also reduces as the truck weight increases. These and other conclusions drawn from the study are listed.

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  • Accession Number: 00497587
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Sep 30 1990 12:00AM