AASHTO NSMT-1提供了使用近表面安装（NSM）施工方法，用钛合金棒（TIAB）加固现有钢筋混凝土结构的设计和施工建议。本指南的总体方法和组织结构基于ACI 440.2R（ACI，2017年。见以下完整引文*）中的内容。提供的抗剪和抗弯加固设计建议基于并改编自AASHTO LRFD桥梁设计规范。这些建议得到了实验和分析研究以及现场经验的支持，这些经验证明了TiABs在加固桥梁典型全尺寸试件方面的应用。现有的实验证据包括组合高压的影响- 循环疲劳和环境耐久性对NSM TiAB加固梁结构性能的影响。

AASHTO NSMT-1 provides design and construction recommendations for strengthening existing reinforced concrete structures with titanium alloy bars (TiABs), using the near-surface mounted (NSM) construction method. The overall approach and organization of the guide are based on those presented in ACI 440.2R (ACI, 2017. See full citation below*). Design recommendations provided for shear and flexural strengthening are based on and adapted from theAASHTO LRFD Bridge Design Specifications. The recommendations are supported by experimental and analytical research, as well as field experiences that have demonstrated the application of TiABs for strengthening full-scale specimens typical of bridge girders. The available experimental evidence includes the influences of combined high-cycle fatigue and environmental durability on the structural performance of NSM-TiAB-strengthened girders.