In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
American Concrete Institute
38800 Country Club Dr.
Farmington Hills, MI
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Longitudinal Steel Stresses in Beams Due to Shear and Torsion in AASHTO-LRFD Specifications
Author(s): Khaldoun N. Rahal
Publication: Structural Journal
Appears on pages(s): 689-698
Keywords: beams; bond; longitudinal reinforcement; prestress; shear; strain; stress
Abstract:The alternative shear and torsion design method (the general method) in the current AASHTO-LRFD specifications and the Canadian A23.3 CSA building code requires a check on the adequacy of the longitudinal steel to resist the stresses not only from bending and axial loads, but also from shear and torsion. This paper presents an evaluation of the general method equation for the calculation of the stresses in the longitudinal steel in members with adequate transverse reinforcement. Longitudinal steel strain readings from tests are compared with the values calculated based on the general method equation for longitudinal force. The study covers the cases of nonprestressed members subjected to combined shear and/or torsion and to prestressed and nonprestressed members subjected to combined torsion and bending. The general method equation is found to give satisfactory results.
Click here to become an online Journal subscriber