Browsing by Author "Amarasinghe, NA"

Now showing 1 - 4 of 4

item: Conference-Full-text
Experimental study on integrated method of NSM and EBR techniques for flexural strengthening of Concrete Beams using CFRP
(2016-01-06) Amarasinghe, NA; Gamage, JCPH
This paper is based on an experimental analysis carried out to identify the effectiveness of different installation techniques of CFRP (Carbon Fibre Reinforcement) in concrete elements. Two new methods of integration of externally bonded reinforcement (EBR) and near surface mounted (NSM) methods were also experimented with the objective of increasing the flexural capacity of reinforced concrete beams by increasing the effective area of CFRP strips used. The main objective of this research paper is to identify the adaptability of existing guidelines specified for the EBR and NSM methods separately into the new installation method of integrating the two techniques of EBR and NSM.
item: Conference-Abstract
Investigation of the most effective method of installing CFRP strips in retrofitting concrete beams
Amarasinghe, NA; Gamage, JCPH
This paper is based on an experimental analysis carried out in order to identify the best method of installation of CFRP strips to enhance the flexural capacity of a reinforced concrete beam. Of the two me“ot installation; EBR (externally bonded reinforcement) and NSM (Near surface mounted) the NSM me o as been proven to be better in qualitative terms. The research gap of quantitative validation of this concept is fulfilled by this research paper. Two new methods of integration of EBR and NSM method were also experimented with the objective of increasing the flexural capacity of reinforced concrete elements by increasing the effective area of CFRP strips used. Suggestions to eliminate the failure modes observed in theexperiment and to enhance the flexural capacity are also discussed in this paper.
item: Conference-Full-text
Investigation of the most effective method of installing CFRP strips in retrofitting concrete beams
(Department of Civil Engineering, University of Moratuwa, 2015) Amarasinghe, NA; Gamage, JCPH; Hettiarachchi, MTP
This paper is based on an experimental analysis carried out in order to identify the best method of installation of CFRP strips to enhance the flexural capacity of a reinforced concrete beam. Of the two methods of installation; EBR (externally bonded reinforcement) and NSM (Near surface mounted) the NSM method has been proven to be better in qualitative terms. The research gap of quantitative validation of this concept is fulfilled by this research paper. Two new methods of integration of EBR and NSM method were also experimented with the objective of increasing the flexural capacity of reinforced concrete elements by increasing the effective area of CFRP strips used. Suggestions to eliminate the failure modes observed in the experiment and to enhance the flexural capacity are also discussed in this paper.
item: Conference-Abstract
Investigation on effectiveness of NSM CFRP Vs EBR CFRP for strengthening concrete members
Amarasinghe, NA; Gamage, JCPH
This paper is based on literature review on Carbon Fibre Reinforced Polymers (CFRP) materials used as near surface mounted (NSM) reinforcement in order to strengthen Reinforced Concrete (RC) structures. Rehabilitation of structures is a complicated task that has been made simple by the utilization of CFRPs. Out of the two methods of externally bonded reinforcement (EBR) and near surface mounted (NSM) reinforcement it has been proven that NSM methods provides better results. This paper presents alternative methods that can be used to improve the bond performance of NSM CFRP on RC structures. It also highlights research gaps that need to be addressed in order to sharpen the knowledge and improve the common practices of CFRPs.