Numerical Analysis of CFRP-Confined Circular Concrete Columns under Axial Loading.

The axial compression performance of circular columns strengthened with carbon fiber-reinforced polymer (CFRP) was investigated using numerical simulation. The study's objective was to validate a finite element model to match results of experimental testing, to ensure consistent failure modes and load-displacement profiles. The investigation explored the impact of various parameters, including concrete strength, CFRP layer numbers, slenderness ratio, steel reinforcement ratio, and cross-sectional area, on CFRP column behavior. The analysis revealed valuable insights into stressstrain relationships and ultimate load-bearing capacity. This study provides vital information for structure engineering practices and design strategies in the industry, highlighting the significance to utilize CFRP technology to enhance structural performance, especially the consistent stress distribution on the concrete core. To understand the mechanical response of CFRP circular concrete columns, engineers can optimize design and construction techniques to create more efficient and durable structures elements, ultimately to improve public safety and to reduce maintenance processes. [ABSTRACT FROM AUTHOR]