Numerical study on retrofit and strengthening performance of sprayed fiber reinforced polymer

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Recent experimental results have demonstrated the great advantages in using composites in a more innovative manner, the use of composites in a spray gun, for strengthening and rehabilitating structures. The results showed that the sprayed fiber reinforced polymer (SFRP) was capable of substantially increasing the load capacity, ductility and energy absorbing capacity of concrete structures, and was effective in strengthening and repair of damaged concrete structures. This paper presents the results of numerical studies conducted on damaged reinforced concrete beams and bridge superstructures coated with SFRP to evaluate the retrofit and strengthening performance of SFRP. A computational model is developed by implementing a damage constitutive model in a finite element code to predict the performance of SFRP retrofitted concrete structures during service. Numerical simulations based on the model are compared with experimental data to assess the predictive capability of the proposed model. This study, in conjunction with the previous experimental observations, will accelerate the introduction of SFRP to infrastructure rehabilitation. (c) 2005 Elsevier Ltd. All rights reserved.
Publisher
ELSEVIER SCI LTD
Issue Date
2005-08
Language
ENG
Article Type
Article
Keywords

COMPUTATIONAL APPROACH; COMPOSITE FABRICS; MATRIX COMPOSITES; DAMAGE EVOLUTION; PLAIN CONCRETE; RC BEAMS; BEHAVIOR; TENSION; MODULI; MODEL

Citation

ENGINEERING STRUCTURES, v.27, no.10, pp.1476 - 1487

ISSN
0141-0296
DOI
10.1016/j.engstruct.2005.04.013
URI
http://hdl.handle.net/10203/7574
Appears in Collection
CE-Journal Papers(저널논문)

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