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ACI 364.2T-08

TechNote: Increasing Shear Capacity Within Existing Reinforced Concrete Structures

ACI Committee 364, TechNote 364.2R-08, 2008, 4 pp. PDF.

Order Code: 3642T08.NEWPUBS

TechNotes are narrowly focused, single-topic guides, usually practice oriented that present a specific direction on a particular issue.

Rehabilitation projects often involve the need to increase the load-carrying capacity of members within existing concrete structures that are deficient due to increased load demand associated with change of use, deficiencies in the original design or construction, or deterioration. Such strengthening often includes increasing shear capacity. Shear strengthening may also be necessary when a structure requires flexural strengthening to ensure a ductile failure mechanism in seismic loading situations. The accessibility difficulties normally encountered in concrete structures, as well as general lack of design standards, may lead to building official limitations on what strengthening may be accepted.

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