A Developed Strength Model for FRP Confined Circular Concrete Columns Based on a Most Updated and Comprehensive Test Database

Abstract:

This paper develops a new advanced strength model for circular columns retrofitted with fiber reinforced polymer (FRP) based on a newly collected test database which is so far the most updated and comprehensive one and has contained more than 800 axial compression test results of FRP confined circular concrete columns. This paper first reviews some existing design-oriented strength models and then provides an in-depth comparison between experimental test results and models predictions. The comparison results indicated that more or less deficiency exists when these models were extended to predict the confined strengths of a much larger amount of columns than that when they were derived, directly resulting in deteriorations of the prediction accuracy. These conclusions exactly reflect the necessity and significance of developing a new advanced confinement strength model in the paper.

• Periodical: Applied Mechanics and Materials (Volumes 275-277)
• Pages: 1364-1369
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.275-277.1364
• Online since: January 2013
• Authors: Ying Wu Zhou, Li Li Sui, Feng Xing, Ling Yi Wu
• Keywords: Confined Concrete, FRP, Strength Model, Test Database

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