Title: Diagonal Shear in Prestressed Concrete Dapped-Beams

Author(s): Ali A. Hamoudi, Michael K. S. Phang, and Robet A. Bierweiler

Publication: Journal Proceedings

Volume: 72

Issue: 7

Appears on pages(s): 347-350

Keywords: beams (supports);building codes;cracing (fracturing);deflection;flexural strength; modulus of elasticity;prestressed concrete;prestressing steels;shear properties;stress analysis; T-beams;web reinforcement.

DOI: 10.14359/11140

Date: 7/1/1975

Abstract:
An investigation is presented for prestressed concrete beams with sharply varying depth at the support poitns, so called dapped ends. The critical state of stress is evaluated at a point close to and near the dap-root assuming shear cracking being a stress problem. Tests were carried out on eight prototype T-beams. The experimental results gave an evaluation of the different methods of web reinforcement.