THE EFFECT OF CFRP REINFORCED SQUARE STONE CHIMNEY ON MODAL PARAMETERS USING FINITE ELEMENT METHOD
Keywords:CFRP, Square Stone Chimney, FEM, Modal Parameters
There is a growing concern with worldwide deterioration of traditional materials such as concrete, steel, and timber. Recently, attention has shifted to the use of fiber reinforced polymer composites (FRPs) as alternative materials. As FRPs are non-corrosive, high strength and modulus values compared to their density, light weight, acceptable deformability, tailored design and excellent formability enable the fabrication of new elements and the structural rehabilitation of the existing parts made of traditional materials. Furthermore, the resistance of FRP materials to corrosion means that they can be used to replace steel and reinforced concrete in situations when they would be exposed to corrosion. FRP therefore has wide application prospects in civil engineering ranging from reinforcing rods and tendons, wraps for seismic retrofit of columns and externally bonded reinforcement for strengthening of walls, beams, and slabs, to all-composite bridge decks, and even hybrid and all-composite structural systems. The method of strengthening with CFRP has been used in many studies recently. Therefore, this study was conducted. In this study, as a result of the reinforcement made by wrapping 2 mm thick CFRP fabric into the 15 m height stone chimney structure. The differences between modal parameters of the stone chimney and CFRP reinforced stone chimney were compared. These modal parameters are period and mode shapes. The first 5 modes of the situation with and without CFRP were examined with finite element method. A difference of 4.99% - 13.52% was observed in the periods of the first 5 modes. Reinforcement with CFRP has been observed to be positive for safety on the stone chimneys
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