Scholarlink

<p>Using fibre reinforced polymer (FRP) to confine reinforced concrete columns is a commonly employed method for strengthening in civil engineering. Columns are essential load-bearing elements, and their failure can result in a disastrous collapse of the structure. The aim of this study is to address a deficiency in the current body of knowledge by conducting a comprehensive examination of the application of carbon fibre-reinforced polymer (CFRP) and aramid fibre-reinforced polymer (AFRP) composite as a material for retrofitting. This study investigates the influence of the quantity of CFRP layers and the incorporation of aramid fibres as retrofitting elements on improving blast resistance. Experimental results presented by Yan et al. (2020) consisting of 12 columns with varying thicknesses and strengthening were validated using the finite element tool LS DYNA. The numerical modelling results showed that using CFRP reinforcement improved the ability to withstand damage, leading to a decrease in residual displacement. Verified numerical models are utilised to conduct parametric analysis on the impact of aramid fibre reinforcement polymer (AFRP) on mid-plane displacement and internal energy absorption. The results suggested that AFRP exhibit greater resistance to blast loads as compared to CFRP.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effect of Blast Loading on CFRP and AFRP Strengthened RC Columns- A Numerical Study

  • 期刊论文

  • 发表日期：

    2025年11月17日

查看全文
  • Mahdi Hosseini,
  • Milan Gaff,
  • David Hui,
  • Rodolfo Lorenzo,
  • Haitao Li,
  • Pritam Ghosh,
  • Ahmad Hosseini

摘要

Using fibre reinforced polymer (FRP) to confine reinforced concrete columns is a commonly employed method for strengthening in civil engineering. Columns are essential load-bearing elements, and their failure can result in a disastrous collapse of the structure. The aim of this study is to address a deficiency in the current body of knowledge by conducting a comprehensive examination of the application of carbon fibre-reinforced polymer (CFRP) and aramid fibre-reinforced polymer (AFRP) composite as a material for retrofitting. This study investigates the influence of the quantity of CFRP layers and the incorporation of aramid fibres as retrofitting elements on improving blast resistance. Experimental results presented by Yan et al. (2020) consisting of 12 columns with varying thicknesses and strengthening were validated using the finite element tool LS DYNA. The numerical modelling results showed that using CFRP reinforcement improved the ability to withstand damage, leading to a decrease in residual displacement. Verified numerical models are utilised to conduct parametric analysis on the impact of aramid fibre reinforcement polymer (AFRP) on mid-plane displacement and internal energy absorption. The results suggested that AFRP exhibit greater resistance to blast loads as compared to CFRP.