Strength in Shear of Prestressed Concrete I-Beams HR-36, 1959

(1959) Strength in Shear of Prestressed Concrete I-Beams HR-36, 1959. Transportation, Department of

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Abstract

It is the purpose of this paper to present a method for evaluating the shear strength of pre-tensioned I-beams having no end blocks. The term shear strength, as used in this paper, refers to the resistance of the beams to failure by shear. A shear failure is defined as a failure which is initiated by an inclined tension crack resulting from the combined efforts of cross shear and bending moment. Some writers refer to shear strength as the ultimate strength of the beam when the failure mechanism is started by the formation of inclined cracks. But, in this paper, shear strength will be defined as having been reached when a sudden, inclined tension crack completely traverses the web of the beam, and ultimate strength will be defined as having been reached when the beam will support no more applied load.