Crack Behaviour of Retrofitted Pre-Tensioned Concrete Beam

Abstract:

Crack is a common cause of the degradation of concrete and may affect its structural durability. In order to ensure the bridge is safe utilized in anticipated period of their future service, a proper maintenance process and procedure should be taken. Therefore in this study, static load test were performed on a pre-tensioned (PRT) concrete beam to investigate crack behaviour before and after retrofitting process as well as to determine the effectiveness of the retrofitting method. A control beam named PRTB1 will fully loaded until fail to determine its maximum load capacity and critical load of the beam. Hence another beam named PRTB-FRP will be loaded until it reached it critical load capacity before retrofitted using Fiber Reinforced Polymer (FRP) plates located beneath the centre of the beam. After the retrofitting process PRTB-FRP will be put again under the static load. The load capacity of PRTB-FRP increased compared to PRTB1 with some improvement in crack propagation behaviour after retrofitted.

• Periodical: Applied Mechanics and Materials (Volumes 752-753)
• Pages: 605-609
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.752-753.605
• Online since: April 2015
• Authors: Nurul Huda Suliman*, A. Abu Bakar, Siti Hawa Hamzah, Norzahiah Shahar
• Keywords: Concrete Retrofitting, Crack Behavior, FRP Plates, Load Capacity, Pre-Tensioned Concrete Beam

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