Strengthening of steel I-beams using CFRP strips: an investigation on CFRP bond length

Narmashiri, Kambiz and Jumaat, Mohd Zamin and Ramli Sulong, Nor Hafizah (2012) Strengthening of steel I-beams using CFRP strips: an investigation on CFRP bond length. Advances in Structural Engineering, 15 (12). pp. 2191-2204. ISSN 1369-4332, DOI https://doi.org/10.1260/1369-4332.15.12.2191.

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Abstract

This research investigates the effects of applying different bond lengths for Carbon Fibre Reinforced Polymer (CFRP) strips used in flexural strengthening of steel I-beams. Wide range of the structural parameters i.e. load bearing capacity, failure mode, strain on CFRP, strain on adhesive, strain on steel beam, lateral deformation, and vertical deflection were investigated. Both numerical and experimental studies were employed. To simulate the specimens, ANSYS software in three dimensional (3D) modelling case and non-linear analysis method was utilized. In the experimental test, four-point bending method with static gradual loading was applied. Results indicate that using shorter CFRP bond lengths caused brittle behaviour, and applying longer CFRP bond lengths resulted in more flexible behaviour. Using different CFRP bond lengths affected the whole structural behaviours of the strengthened beams.

Item Type:	Article
Funders:	UNSPECIFIED
Additional Information:	Export Date: 6 January 2013 Source: Scopus CODEN: ASEDD Language of Original Document: English Correspondence Address: Narmashiri, K.; Department of Civil Engineering, Zahedan Branch, Lamic Azad University, Zahedan 98168, Iran; email: narmashiri@iauzah.ac.ir References: Al-Emrani, M., Linghoff, D., Kliger, R., Bonding strength and fracture mechanisms in composite steel-CFRP elements (2005) Proceedings of International Symposium on Bond Behaviour of FRP in Structures (BBFS 2005), , Hong Kong, China; Bocciarelli, M., Colombi, P., Fava, G., Poggi, C., Prediction of debonding strength of tensile steel/CFRP joints using fracture mechanics and stress based criteria (2009) Engineering Fracture Mechanics, 76 (2), pp. 299-313; Buyukozturk, O., Gunes, O., Karaca, E., Progress on understanding debonding problems in reinforced concrete and steel members strengthened using FRP composites (2004) Construction and Building Materials, 18 (1), pp. 9-19; Chen, J.F., Teng, J.G., Anchorage strength models for FRP and steel plates bonded to concrete (2001) Journal of Structural Engineering, 127 (7), pp. 784-791. , DOI 10.1061/(ASCE)0733-9445(2001)127:7(784), Reportnr 22327; 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Uncontrolled Keywords:	Bond length, carbon fibre reinforced polymer (CFRP), I-beam, steel, strengthening
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Engineering
Depositing User:	Mr Jenal S
Date Deposited:	23 Apr 2013 00:57
Last Modified:	16 Jan 2020 02:27
URI:	http://eprints.um.edu.my/id/eprint/5875

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