Ultimate Shear Tests Of Prestressed Concrete I-Beams Under Concentrated And Uniform Loadings

摘要

style="text-align: left;">This paper presents and discusses the results of thirty-five shear test.s on twenty pretensioned prestressed concrete 1-beams. The principal variables were the amount of web reinforcement and the shear  span to effective depth ratio. Symmetrical and unsymmetrical concentrated loadings and uniform loadings were used. Web crushing, stirrup fracture, and shear compression failures were obtained. Conservative but realistic agreement was found between the tests results and the new ultimate shear strength provisions of Section 2610, ACI 318-63. >References>1. Hanson J.M., Hulsbos, C. L., "Overload Behavior of Prestensioned Prestressed Concrete 1-Bearns with Web Reinforcement," presented at the 43rd Annual Meeting of the Highway Research Board,  Washington, D.C., January, 1964. To be published by the Highway 28 Research Board. >2. Hernandez, G. Sozen, M. A., and Siess, C. P., "Strength in Shear of Prestressed Concrete Beams with Web Reinforcement," presented at the Convention of the American Society of Civil Engineers,    New Orleans, March, 1960.