Title: Ultimate Strength in Shear of Simply-Supported Prestressed Concrete Beams Without Web Reinforcement

Author(s): E. M. Zwoyer and C. P. Siess

Publication: Journal Proceedings

Volume: 51

Issue: 10

Appears on pages(s): 181-200

Keywords: no keywords

DOI: 10.14359/11673

Date: 10/1/1954

Abstract:
Tests were made on 34 simply-supported prestressed concrete beams without web reinforcement. All beams were rectangular in cross section and were reinforced with straight wires bonded throughout their length. Variables included the prestress, the percentage and type of steel, the concrete strength, and the ratio of shear-span to depth of beam. On the basis of the results obtained, an hypothesis of failure was developed which is consistent with the phenomena observed in the tests and which provides the basis for a method of analysis capable of predicting the strength in shear of beams similar to those tested. This method of computing shear strength can be applied also to beams of ordinary reinforced concrete, and comparisons with the results of tests show reasonably good agreement.