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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: ACI 440.2R and The New Seismic Strengthening Guidelines Using FRP
Author(s): Pedro Silva and Ravi Kanitkar
Publication: Special Publication
Appears on pages(s): 20.1-20.16
Keywords: ACI 440.2R; ductility; Fiber-reinforced polymer; FRP; seismic strengthening; confinement; plastic hinge; lap splice clamping.
Abstract:The ACI440.2R document represents state-of-the-art design and construction guidelines for the strengthening of concrete structures using externally bonded FRP systems. A significant number of FRP field applications are related to seismic strengthening of existing reinforced concrete structures. The 2008 edition of ACI440.2R does not provide design guidance for the use of FRP in seismic applications. As such, ACI Committee 440 has developed seismic guidelines for inclusion in the newly released 2017 edition. The new seismic design guidelines include the most common applications observed in the industry, such as confinement of beam and column sections, as well as flexural and shear strengthening of concrete members. Since seismic retrofit can be based on a variety of codes and standards, these guidelines are intended to be compatible with the selected code or standard. The seismic guidelines are incorporated in a separate chapter within the ACI440.2R document but, where applicable, reference other chapters for design provisions. This paper summarizes common deficiencies found in existing reinforced concrete buildings and the mitigation of some of these deficiencies using FRP and the provisions of the 2017 edition of ACI 440.2R.
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