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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Shear Fatigue Tests of Prestressed Concrete I-Beams with Web Reinforcement
The report presents the results of laboratory fatigue tests to determine the shear strength of prestressed concrete beams. Six I-beams were tested; each beam was loaded statically to approximately 80 percent of its ultimate flexural capacity, after which it was subjected to repeated loads varying in magnitude between 20 and 45 percent of its flexural capacity for about 2,000,000 cycles. The load range was then increased and continued until failure occurred. The tests demonstrated that prestressed concrete beams have a remarkable shear fatigue resistance. Furthermore, shear fatigue failures do not occur suddenly, but give considerable warning as indicated by increasing deflection and increasing crack width before failure occurs. (BPR abstract)
Shear Fatigue Tests of Prestressed Concrete I-Beams with Web Reinforcement
The report presents the results of laboratory fatigue tests to determine the shear strength of prestressed concrete beams. Six I-beams were tested; each beam was loaded statically to approximately 80 percent of its ultimate flexural capacity, after which it was subjected to repeated loads varying in magnitude between 20 and 45 percent of its flexural capacity for about 2,000,000 cycles. The load range was then increased and continued until failure occurred. The tests demonstrated that prestressed concrete beams have a remarkable shear fatigue resistance. Furthermore, shear fatigue failures do not occur suddenly, but give considerable warning as indicated by increasing deflection and increasing crack width before failure occurs. (BPR abstract)
Shear Fatigue Tests of Prestressed Concrete I-Beams with Web Reinforcement
J. M. Hanson (Autor:in) / C. L. Hulsbos (Autor:in)
1969
114 pages
Report
Keine Angabe
Englisch
Civil Engineering , Composite Materials , Structural Mechanics , Beams(Structural) , Fatigue(Mechanics) , Concrete , Stresses , Shear stresses , Loading(Mechanics) , Crack propagation , Life expectancy , Tensile properties , Compressive properties , Deflection , Deformation , Pennsylvania , Prestressed concrete
Shear fatigue tests of prestressed concrete I-beams with web reinforcement
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