Dynamic analysis of fireworks industrial buildings under impulsive loading

Abstract

90% of fire crackers are manufactured in firework industries situated in and around sivakasi town of virudhunagar district, Tamiladu. The fire work and match work industries are constructed by clay brick masonry. Where the accidental explosion may occur due to the mishandling of chemicals during manufacturing of fire crackers and is reported regularly. Since the clay brick masonry is brittle in nature, the failure of masonry often leads to flying debris resulting in loss of life/injury to a large number of people and property. Existing structures are lack in explosion resistance features and hence the structures are needed to be strengthened. Clay brick masonry models with 230mm & 300mm thickness were considered in this study and it is retrofitted with GFRP sheets of 3mm because of its low cost, corrosion resistance, high strain at failure and high tensile strength. This study mainly focuses on the performance of masonry unit retrofitted with GFRP sheets in different blast loading. The static & dynamic analysis were carried out using ANSYS software, The test result indicates that the deformation of a retrofitted unit is 67.8% less as compared to conventional unit.