1. Retrofitting of Exterior Beam-Column Joint—A Review
- Author
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G. Janardhanan, V. Ashok, T. Pauline, and P. Sangeetha
- Subjects
Engineering ,Process (engineering) ,business.industry ,Beam column ,Retrofitting ,Joint (building) ,Fibre-reinforced plastic ,Ferrocement ,engineering.material ,Work safety ,business ,Durability ,Construction engineering - Abstract
Repair, retrofitting and strengthening of the reinforced cement concrete (RCC) beams to column structural joints in a framed structure is the emerging and widespread areas of interest in reach for past decades. The purpose for strengthening or retrofitting these RC beam-column structural joint includes various factors as concrete which is deteriorating, changes in building utility, structure ageing, corroding reinforcement, design mistakes or construction errors and upgradation in the codal provisions. Retrofitting/strengthening methods are used in strengthening these framed structures and allow them to perform as per the updated codal requirements. Researchers over the decades are attempting and finding out a suitable technique to strengthen and in repairing RCC beam-column structural joint that would balance necessary structural requirements so as to enhance ductility and strength. The methods of strengthening should be in such a way to enhance controlling the construction cost, minimized implementation and minimum disruption of the occupants in the building during construction process, aesthetics has to be maintained, increased durability and ensuring full work safety. The earliest strengthening technique used steel jacketing which resulted in the minimum modifications of the structural geometry but simultaneously enhanced the structural capacity of the framed buildings. FRP—fibre reinforced polymers such as GFRP, CFRP, etc. are greatly being used as a substitute material to the traditional method of retrofitting techniques. The researches have significantly done efforts to develop new polymers to develop FRP strengthening techniques. This review paper will provide a detail study or various retrofitting and strengthening methods for RCC beam-column joints. A reviewed literature study was carried to find out the effectiveness of various strengthening techniques and to identify the potential areas of research to address the gaps in research.
- Published
- 2021
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