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Strengthening of RC members with near-surface mounted CFRP rods

机译：用近表面安装的CFRP杆加固RC构件

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摘要

The aim of the experimental programme developed in this work was to investigate the possibility of using Carbon Fibre-Reinforced Polymer (CFRP) rods to strengthen concrete structural members with the near-surface mounted reinforcement (NSM) technique. The global behaviour of reinforced concrete beams strengthened by NSM and subjected to flexure was investigated. The rods were 6 and 12-mm-diameter carbon-epoxy pultruded FRP. Two vibrated concrete compositions were tested: conventional (VC30) and high-strength (VC60), and two filling materials: resin and mortar. The study was carried out up to the failure load. A comparison was made between the experimental results and the existing analytical models.rnThe experimental results indicate that strengthening concrete structural members with the near-surface mounted reinforcement (NSM) gives satisfactory results.
机译：在这项工作中开发的实验程序的目的是研究使用碳纤维增强聚合物（CFRP）杆通过近表面安装增强（NSM）技术来增强混凝土结构构件的可能性。研究了NSM加固并经受挠曲的钢筋混凝土梁的整体性能。棒是直径为6和12毫米的碳环氧拉挤FRP。测试了两种振动混凝土组合物：常规（VC30）和高强度（VC60），以及两种填充材料：树脂和砂浆。该研究一直进行到破坏负荷为止。实验结果与现有的分析模型进行了比较。实验结果表明，采用近表面安装的钢筋（NSM）加固混凝土结构构件可获得令人满意的结果。

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