Compressive Behavior of Concrete Columns Confined with Aramid Fiber Reinforced Polymer Twinning Tubes
摘要
This study examines the compressive behavior of concrete columns confined with aramid fiber-reinforced polymer (AFRP) twining tubes. Aramid Fiber-Reinforced Polymer is an advanced composite material that consists of high-strength aramid fibers embedded in a polymer matrix. Due to its superior strength-to-weight ratio, corrosion resistance, and durability, AFRP serves as an efficient alternative to traditional steel reinforcement in concrete structures. The objective of the project work is to assess the structural enhancement provided by AFRP confinement under axial loading. Concrete specimens were wrapped with varying layers of AFRP (6, 12 and 24 layers) to determine the optimal confinement configuration for strength improvement. Standard cylindrical specimens were tested under uniaxial compression using a universal testing machine (UTM), and compressive strength variations were analyzed. The findings demonstrate the effectiveness of AFRP confinement in enhancing load-bearing capacity, highlighting its potential as a sustainable and high-performance reinforcement solution for concrete columns in structural applications.