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A platform for research: civil engineering, architecture and urbanism
Statistical Evaluation of AASHTO Fatigue Specifications
Laboratory experimental data provided by Lehigh University on fatigue properties of various weldment details commonly used in steel highway bridges are subjected to statistical analysis. 1972 North Carolina vehicle traffic data obtained from the Federal Highway Administration are also analyzed. These two pieces of information are used to evaluate the fatigue life of two highway bridges. One of the bridges is very narrow and the other is of wider variety. It is found that the probabilities of fatigue failure of these two bridges are very small and wider bridges tend to be safer than narrower bridges. The data of fatigue properties of weldments and vehicular traffic are used also to evaluate the adequacy of the fatigue provisions of the 1973 AASHTO Specifications. Results indicate that the Specifications are overly conservative for wide bridges but adequate for narrower bridges. The manner in which the Specifications may be modified to yield bridges of uniform safety against fatigue is recommended.
Statistical Evaluation of AASHTO Fatigue Specifications
Laboratory experimental data provided by Lehigh University on fatigue properties of various weldment details commonly used in steel highway bridges are subjected to statistical analysis. 1972 North Carolina vehicle traffic data obtained from the Federal Highway Administration are also analyzed. These two pieces of information are used to evaluate the fatigue life of two highway bridges. One of the bridges is very narrow and the other is of wider variety. It is found that the probabilities of fatigue failure of these two bridges are very small and wider bridges tend to be safer than narrower bridges. The data of fatigue properties of weldments and vehicular traffic are used also to evaluate the adequacy of the fatigue provisions of the 1973 AASHTO Specifications. Results indicate that the Specifications are overly conservative for wide bridges but adequate for narrower bridges. The manner in which the Specifications may be modified to yield bridges of uniform safety against fatigue is recommended.
Statistical Evaluation of AASHTO Fatigue Specifications
C. C. Tung (author) / K. M. Kusmez (author)
1975
84 pages
Report
No indication
English
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