Experimental Investigation of RC Beams Strengthened in Shear with Externally Bonded Composites

Abstract

This paper presents the results of an experimental campaign carried out to investigate the behavior of reinforced concrete (RC) beams strengthened in shear using externally bonded advanced composite materials. In order to compare their performance, two different types of composite materials were used to strengthen the beams: fiber reinforced polymer (FRP) and fiber reinforced cementitious matrix (FRCM) composites. The beams were then tested in four-point bending scheme, and measurements regarding applied load and mid-span displacements were acquired. Observations regarding the gain in shear strength, influence on mid-span deflection and ductility, and comparison of the performance of the two strengthening systems are provided. For specimens strengthened with FRCM composite, the contribution to the shear strength provided by the FRCM strengthening system is compared with the value predicted by an analytical model found in the available literature.

Department(s)

Civil, Architectural and Environmental Engineering

Keywords and Phrases

FRCM; FRP; Reinforced concrete; Shear; Strengthening

International Standard Book Number (ISBN)

978-988144802-6

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 The Hong Kong Polytechnic University, All rights reserved.

Publication Date

01 Jan 2016

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