Numerical Modeling of Reinforced Masonry Wall with FRP Composites to Investigate the Effect of Different FRP Arrangements on the Behavior of Masonry Wall Subjected to Blast Loading

Document Type : -

Authors

1 PhD Student, Iran University of Science and Technology, Tehran, Iran

2 Assistant Professor, Malek Ashtar University of Technology, Tehran, Iran

Abstract

Masonry structures have a high potential for severe damage in explosions, and given the increase in terrorist incidents, reinforcing these buildings seems necessary. Over the past thirty years, fiber-reinforced polymers (FRP) have been widely and effectively used for strengthening and improving the performance of these structures. Finite element modeling, while providing a basis for better understanding the behavior of masonry walls, is very useful in predicting the behavior of these members after reinforcement, especially in the absence of experimental results. In this study, using numerical modeling in Abaqus software, the behavior of masonry walls reinforced with FRP sheets against an explosion with a charge equivalent to 150 kg of TNT at a distance of 5 meters was investigated, and the necessary and influential parameters for evaluating the application of this reinforcement method were analyzed. Fiber material, width, thickness, area and arrangement angle of the FRP sheets are among the parameters affecting the behavior of reinforced masonry walls. The results of the modeling show that this reinforcement method is effective for strengthening masonry walls against explosions, significantly reducing the displacement of the wall center and its total energy. Additionally, reinforcing walls with horizontal strips, compared to vertical and diagonal strips, improves the wall’s performance to a greater extent.

Keywords

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References

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Journal of Advanced Defense Science & Technology
Volume 15, Issue 1 - Serial Number 55
Spring2024
June 2025
Pages 45-56

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History

  • Receive Date: 04 March 2024
  • Revise Date: 21 April 2024
  • Accept Date: 01 May 2024
  • Publish Date: 31 May 2024

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