Effect of Retrofitting On Concrete Filled Aluminium Tubular Section Using Basalt Strips
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 5
Abstract
Over the past few decades, concrete filled tubular column plays an eminent role in the construction industry owing to its structural behaviour like large deformation and energy absorption capacity. These members are ideally suited for all applications because of their effective usage of construction material which leads to high compressive strength, excellent fire resistance, low cost and rapid construction. The steel and the concrete element in a composite member complement each other ideally thus the advantages of both are maximally utilized. But these members get deteriorated due to the environmental effects like corrosion and ageing. In general, retrofitting is a part of Civil, Mechanical Engineering and Medical field. In civil engineering field, to set right the deteriorated, damaged, corroded and aged composite structures by means of repairing, retrofitting, rehabilitating, strengthening processes based on the damage conditions of the structures and up gradation to higher seismic zones are required. Different methods are being adapted for retrofitting and repairing works. The external strengthening of fibre material is emerging as a new trend in enhancing the structural performance of tubular members to counteract the drawbacks in using the past rehabilitation work. In this paper, an experimental investigation has been carried out according to the behaviour of partially damaged concrete filled rectangular aluminium tubular columns retrofitted with basalt strips in the nominal grade of concrete under axial compression. In the experimental work a total ten concrete filled rectangular aluminium tubes of 44.75mm x 101.6mm x 1.35mm with 425mm height are casted. In that nine specimens are externally bonded by 3 layers of 30mm width of basalt strips with three different spacing of 26.42, 35.83 and 49mm was tested. The retrofitted effects between various percentages of damaged specimens with respect to the wrapping spacing are to be compared. Finally, the experimental results will be compared with the analytical results obtained from ANSYS software.
Authors and Affiliations
C. Rexin, N. Sakthieswaran, G. Shiny Brintha, O. Ganesh Babu
Keywords
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