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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: Tests of Reinforced Concrete Wall
Beams With Large Web Openings
Author(s): James E. Carpenter and Norman W. Hanson
Publication: Journal Proceedings
Appears on pages(s): 756-775
Keywords: beams (supports) ; bearing walls; cracking (fracturing) ; deflection; flexural strength; frames; multistory buildings; openings; reinforced concrete; research; shear strength; ultimate strength; walls; webs (supports).
Abstract:Two reinforced concrete beams with openings in their 3 in. thick x 4 ft deep webs were tested under uniform load. Each beam was supported over a 30- ft span. The design respresents, in half size, a portion of a building which used a partition wall as the beam web and part of the floor slabs as the top and bottom beam flanges. Tests show that provisions of the I963 ACI Buildinq Code insure adequate flexural and shear strength in both the beam and the lintels above the door openings. However, additional web reinforcement may be required to reduce crack widths in the partition wall to aesthetically acceptable limits.
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