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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.
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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: Strength, Cracking and Deformation Similitude in Reinforced T-beams Under Bending and Shear
Author(s): R. Narayan Swamy and Shamsuddin A. Queshi
Publication: Journal Proceedings
Appears on pages(s): 187-195
Keywords: aggregate size;cracking (fracturing);deformation;flexural strength;models; research;reinforced concrete;shear strength;simulation;size effect;stiffness; stirrups;T-beams.
Abstract:The strength, cracking, and deformation similtude of full, one-half, and one-third scale models of reinforced concrete T-beams without and with stirrups and failing in shear and flexure is reported. The effects of aggregate size and control specimen size area are also investigated. The greater deflection and the increased strength characteristicsof models before failure is shown to be due to their increased strain capacity and the presence of a strain gradient in the compression zone. For strength and cracking similitude it is necessary to scale down the maximum aggregate size. One-third scale models consistantly show larger increases in strength. Models made from the same materials as the prototype are able to satisfactorily simulate deformation and stiffness characteristics of the prototype.
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