Analytical model for Axial Strength of FRP-Reinforced Short Columns Confined with Sheets and Tubes

Abstract

Reinforcement of concrete structures using (FRPs) fiber-reinforced polymers as an alternative to conventional steel is on the rise. In this study, the effects of axial cyclic and concentric stresses on the durability of (CFFT) columns constructed from concrete-reinforced FRP tubes are investigated. The axial durability of 587 FRP-confined concrete collapse pieces was included in our massive dataset compiled from previous studies. This database is used to develop an analytical model of a CFFT column reinforced by FRP bars which is used to find the axial strength of that column accurately. This information was used to generate an analytical model that successfully predicts the axial power of a CFFT column that has been internally reinforced with FRP bars. The proposed model's remarkable agreement with observed outcomes demonstrates its success in predicting the axial lifespan of FRP-RC components housed in FRP tubes