Shear Strength of Prestressed and Nonprestressed Concrete Beams

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Title: Shear Strength of Prestressed and Nonprestressed Concrete Beams

Author(s): Yi-An Li, Thomas T.C. Hsu, and Shyh-Jiann Hwang

Publication: Concrete International

Volume: 39

Issue: 9

Appears on pages(s): 53-57

Keywords: failure, web, flexural, design

Date: 9/1/2017

Abstract:
ACI 318-14 requirements for determining the shear strength of concrete beams are separated into two distinctly different methods—one for prestressed concrete (PC) and one for nonprestressed reinforced concrete (RC). To simplify the shear strength calculations, a shear prediction equation incorporating a factor known as the “arch action factor” is proposed. This factor provides a means to unify flexural shear failure and web shear failure, and it has been shown to be applicable to both PC and RC.