Fatigue of Bolted High Strength Structural Steelby Peter C. Birkemoe, (A.M.ASCE), Asst. Prof. of Civ. Engrg.; Univ. of Illinois, Urbana, IL,
Ramachandran Srinivasan, (A.M.ASCE), Res. Asst.; Civ. Engrg. Dept., Univ. of Illinois, Urbana, IL,
Serial Information: Journal of the Structural Division, 1971, Vol. 97, Issue 3, Pg. 935-950
Document Type: Journal Paper
Results of fatigue tests on bolted connections in high strength structural steel conducted at the University of Illinois are presented. The principal parameter varied was the bolt type; one additional variation was included also. Constant amplitude fatigue tests were conducted at various stress ratios, with particular emphasis on zero-to-tension testing. The results indicate improved fatigue strength for high strength structural steel (yield strength = 50.0 ksi) compared to A36 steel. Connections with A325 bolts exhibit approximately the same fatigue strength as those in which A490 bolts are used. A comparison of results of present study with those from other sources indicates that stress based on gross section area gives a better correlation with the number of load cycles to failure of steel in bolted connections than net section stress.
Subject Headings: High-strength steel | Structural strength | Structural steel | Steel structures | Bolts | Fatigue (material) | Fatigue tests | Bolted connections
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