EFFECT OF USING EXTERNAL GFRP PLATES ON STRUCTURALLY DEFICIENT RC BEAMS

Autor:	HY Leung, R.V. Balendran
Rok vydání:	2003
Předmět:	Materials science business.industry Deflection (engineering) Strategy and Management Glass fiber Structural engineering Fibre-reinforced plastic Composite material business Beam (structure) Civil and Structural Engineering Neutral axis
Zdroj:	Journal of Civil Engineering and Management. 9:36-44
ISSN:	1822-3605 1392-3730
DOI:	10.1080/13923730.2003.10531299
Popis:	This paper presents some experimental results on the behaviour of flexure- and shear-deficient RC beams strengthened with external glass fibre reinforced polymer (GFRP) plates. Ten number of 2,5 m long over-designed, unplated under-design and plated under-designed beams were examined under four-point bending condition. Experimental results indicated that use of GFRP plates enhanced the strength and deformation capacity of the structurally deficient beams by altering their failure modes. Application of side plates on shear-deficient RC beams appeared to be more effective than using bottom plates on flexure-deficient RC beams. However, without any improvement on concrete compressive capacity, additional shear capacities provided to the beams under the action of side plates increased the likelihood of beam failure by concrete crushing. Simultaneous use of bottom and side plates on flexure- and shear-deficient RC beams could result in reduced deflection. The change in the neutral axis depth and GFRP ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::58ab530ebb5d518602bd8f8497f5a37c https://doi.org/10.1080/13923730.2003.10531299 Zobrazit plný text záznamu