Journal
COMPOSITES PART B-ENGINEERING
Volume 49, Issue -, Pages 71-79Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2013.01.006
Keywords
Polymer matrix composites (PMCs); Debonding; Strength; Analytical modeling
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The technology of using FRP composites to strengthen concrete members has proven its effectiveness over the years. Accordingly, design guides have been developed to aid engineers in applying this technology. ACI 440.2R-08 is one of the major design guides used in the US and elsewhere in the world. Due to the existence of two major sectional tensile forces in steel and FRP as well as the likelihood of different failure modes, the ACI 440.2R-08 flexural strengthening design procedure leads to an iterative process. In this study an efficient design procedure that eliminates the need for iterations is developed. The FRP area determined from the developed design procedure has been shown to correlate very accurately to the exact area obtained iteratively according to the ACE 440.2R-08 document. Several design examples are solved to illustrate the potential use of this efficient and simple design procedure in expediting the current design computations. (C) 2013 Elsevier Ltd. All rights reserved.
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