Optimization of Profiled Steel Deck Composite Slab Strengthened with CFRP: A Finite Element Analysis Approach

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DOI:

https://doi.org/10.1590/1679-78258143

Abstract

This work leverages Finite Element (FE) modelling to optimise the deck geometry in continuous composite slab systems, focusing on trapezoidal profile decks. Subsequently, it examines the effectiveness of reinforcing the hogging moment area with Carbon Fiber Reinforced Polymer (CFRP). The main objective is to improve the structural performance when subjected to static loads by optimising geometric factors such as deck height and thickness. The deck profile that yielded the best results had a height of 60 mm, a thickness of 1 mm, and a shear span of 850 mm and resulted in a 7.6% increase in the ultimate load compared to a deck with a thickness of 0.75 mm. The study also assesses the impacts of CFRP reinforcement configurations. The optimal outcome was attained by utilising carbon fiber reinforced polymer (CFRP) sheets that spanned the whole width of the slab for a length of 1.7 m, resulted in a significant 43.17% enhancement in ultimate load. The CFRP enhanced slab, which spans the whole width, demonstrated a maximum load-carrying capability of 176.78 kN. Theoretical analysis indicated a high level of concurrence with FEM.

Author Biography

Karthiga S, SRM Institute of Science and Technology, Kattankulathur, Chengalpet, India – 603203

Assistant Professor, Department of Civil Engineering, SRM Institute of Science and Technology, Kattankulathur, Chengalpet, India – 603203

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Published

2024-05-24

Issue

Vol. 21 No. 6 (2024)

Section

Articles

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