**A newer version of this document exists**
TechNotes are a committee document that are narrowly focused, single-topic guides, usually practice oriented, that present a specific direction on a particular issue. ACI committee documents (including TechNotes) are reviewed and approved by ACI's Technical Activities Committee.
What options are available to increase the shear capacity of members within existing reinforced concrete structures? This TechNote provides an overview of the variety of materials and methods available to increase shear capacity, including the use of external steel reinforcement, section enlargement, internal steel or fiber-reinforced polymer (FRP) reinforcement, supplemental members, FRP plates and strips, both steel and FRP near-surface-mounted reinforcement, and external prestressing
Keywords: external steel reinforcement; fiber-reinforced polymer; section enlargement; shear reversal; shear-strengthening
Author: ACI Committee 364
Publication Year: 2009
This document is Historical
Table of Contents
What options are available to increase the shear capacity of members within existing reinforced concrete structures?
Any applicable errata are included with individual documents at the time of purchase. Errata are not included for collections or sets of documents such as the ACI Collection. For a listing of and access to all product errata, visit the
Printed / Hard Copy Products: The full and complete returned product will be accepted if returned within 60 days of receipt and in salable condition. A 20% service charge applies. Return shipping fees are the customer’s responsibility.
Electronic /Downloaded Products & Online Learning Courses: These items are not eligible for return.
Subscriptions These items are not eligible for return.
Exchanges: Contact ACI’s Customer Services Department for options (+1.248.848.3800 – ACICustomerService@concrete.org).