364.2T-08: Increasing Shear Capacity Within Existing Reinforced Concrete Structures

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Title: 364.2T-08: Increasing Shear Capacity Within Existing Reinforced Concrete Structures

Author(s): ACI Committee 364

Publication: Technical Documents

Volume:

Issue:

Appears on pages(s): 4

Keywords: external steel reinforcement; fiber-reinforced polymer; section enlargement; shear reversal; shear strengthening.

Date: 7/1/2008

Abstract:

Note: 364.2T-08 is only available in PDF format.

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.