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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: Ultimate Flexural Capacity of Cracked Polygonal Concrete Sections With Circular Holes Under Biaxial Bending
Author(s): Troels Brondum-Nielsen
Publication: Structural Journal
Appears on pages(s): 212-215
Keywords: axial loads; bending; biaxial loads; computer programs; cracking (fracturing); flexural strength; hollow-core slabs; strains; limit state design; openings; partial prestressing; prestressed concrete; prestressing; reinforced concrete; structural analysis;
Abstract:A method of calculating the ultimate flexural capacity of cracked, fully prestressed, partially prestressed, and nonprestressed arbitrary polygonal concrete sections under biaxial bending is presented. The cross section can be reinforced with any combination of prestressed and nonprestressed reinforcement with individual mechanical properties. The method covers symmetrical and unsymmetrical cross sections and cross sections with polygonal and circular holes. The method is suitable for programmable hand-held calculators.
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