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Effect of Corner Radius on Axially-Loaded Square RC Columns Confined with FRP Laminates

Mohammadi Samani, Ali | 2011

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 42205 (53)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Mostofinejad, Davoud
  7. Abstract:
  8. FRP confinement studies on concrete square columns and its effect on design and retrofitting has been the topic of numerous studies in recent years and due to wide spread usage of FRP in structural retrofitting, these studies are still carried out by researchers. One of the most common and accurate methods for predicting the behavior of structures is modeling by Finite Elements Method (FEM). This study aims to assess the effects of corner radius on axially loaded reinforced FRP-confined concrete columns and their behavior for different corner radiuses using FEM software. Using the capability of FEM in ABAQUS software (V 6.8-1), the behavior of square reinforced concrete (RC) columns confined with FRP was investigated taking into account different corner radius and amounts of transverse and longitudinal steel. The results show that the most effective parameter in increasing the compressive strength of pure axially loaded square RC FRP-confined columns is the percentage of longitudinal bars such that if it increases, compressive strength increases respectively and the larger corner radius of column will result in significantly better column confinement and performance.

  9. Keywords:
  10. Upgrading ; Finite Element Method ; Axial Load ; Fiber Reinforced Polymer (FRP) ; Square Columns

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