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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: Concrete Q&A: Designing Beams in Mat Foundation and more
Publication: Concrete International
Appears on pages(s): 71-72
Abstract:Section 188.8.131.52 of ACI 318-141 states: “Grade beams and beams that are part of a mat foundation subjected to flexure from columns that are part of the seismic-force-resisting system shall be in accordance with 18.6.” Section 18.6 applies to “beams of special moment frames that form part of the seismic-forceresisting system and are proportioned primarily to resist
flexure and shear.” Because a mat foundation is a flexural member, does this clause mean that a solid mat needs to be detailed like a special moment frame? In other words, what are “beams that are part of a mat foundation”?
For coupled shear walls in Seismic Design Category (SDC) B or C, are the link beams to be designed as ordinary moment frame beams or intermediate moment frame beams?
What is a recommended spacing for contraction joints in concrete walls in buildings?
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