When glass fibre-reinforced polymer (GFRP) bar splices are used in reinforced concrete sections, they affect the structural performance in two different ways: through the stress concentration in the section, and through the configuration of the GFRP–concrete bond. This study experimentally investigated a new method for increasing the bond strength of a GFRP lap (two GFRP bars connected together) using a carbon fibre-reinforced polymer (CFRP) sheet coated in epoxy resin. A new splicing method was investigated to quantify the effect of the bar surface bond on the development length, with reinforced concrete beams cast with laps in the concrete reinforcing bars at a known bending span length. Specimens were tested in four-point flexure tests to assess the strength capacity and failure mode. The results were summarised and compared within a standard lap made according to the ACI 318 specifications. The new method for splicing was more efficient for GFRP splice laps than the standard lap method. It could also be used for head-to-head reinforcement bar splices with the appropriate CFRP lapping sheets.

当玻璃纤维增​​强聚合物（GFRP）钢筋接头用于钢筋混凝土截面时，它们会以两种不同的方式影响结构性能：通过截面中的应力集中以及通过GFRP-混凝土键的配置。这项研究实验性地研究了一种新方法，该方法使用涂有环氧树脂的碳纤维增强聚合物（CFRP）板来提高GFRP搭接（两个GFRP条连接在一起）的粘结强度。研究了一种新的拼接方法，以量化钢筋表面粘结对展开长度的影响，在已知弯曲跨度长度下，钢筋混凝土梁通过搭接在钢筋混凝土中搭接而成。样品在四点弯曲试验中进行了测试，以评估强度能力和破坏模式。在根据ACI 318规格制成的标准圈内，对结果进行了总结和比较。新的拼接方法比标准搭接方法对GFRP搭接搭接更有效。它也可以用于带有适当CFRP搭接片的头对头钢筋接头。