Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Shear fatigue tests of prestressed concrete I-beams with web reinforcement
Six I-beams were made and tested; each beam was first loaded statically to approximately 80% of its ultimate flexural capacity; each beam was subsequently subjected to repeated loads varying in magnitude between approximately 20 and 45% of its flexural capacity; load range on each beam was then increased and continued until failure occurred; flexural fatigue failures occurred at fewer cycles of loading than expected; tests indicate that nominal tensile stress in bottom fibers of bridge girders should be limited to 400 psi; shear fatigue failures give considerable warning before failure occurs. (21817)
Shear fatigue tests of prestressed concrete I-beams with web reinforcement
Six I-beams were made and tested; each beam was first loaded statically to approximately 80% of its ultimate flexural capacity; each beam was subsequently subjected to repeated loads varying in magnitude between approximately 20 and 45% of its flexural capacity; load range on each beam was then increased and continued until failure occurred; flexural fatigue failures occurred at fewer cycles of loading than expected; tests indicate that nominal tensile stress in bottom fibers of bridge girders should be limited to 400 psi; shear fatigue failures give considerable warning before failure occurs. (21817)
Shear fatigue tests of prestressed concrete I-beams with web reinforcement
Lehigh Univ -- Dept Civ Eng -- Fritz Eng Laboratory
Hanson, J.M. (Autor:in) / Hulsbos, C.L. (Autor:in)
1969
111 pages
Report
Englisch
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Shear fatigue of prestressed I‐beams with shear reinforcement
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