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: Distributed Loads Creating Combined Torsion, Bending, and Shear on L-Beams with Stirrups
Torsion, Bending, and Shear on
L-Beams with Stirrups
Author(s): K. S. Rajagopalan and Phil M. Ferguson
Publication: Journal Proceedings
Appears on pages(s): 46-54
Keywords: beams (supports); bending: cracking (fracturing);flexural strength; interactions; L-beams; loads (forces); reinforced concrete; reinforcing steels;research;
shear properties; stiffness; stirrups; stresses;torsion.
Abstract:Tests on semicontinuous L-beams with stirrups, under distributed loads creating torsion combined with flexure and shear, showed greater load capacities, around 25 percent, than similar beams under point loads. In this evaluation, shears and torques were taken at a distance from the support. Despite a negative moment yield line in the slab at the face of web, the flange seemed effective in resisting the torsion, The post-cracking torsional stiffness dropped to 3 to 7 percent of the initial stiffness. Strain gage measurements at the point of inflection showed steel stress from torsion varying more nearly with twist angle than with torque itself.
Click here to become an online Journal subscriber