Reinforced concrete (RC) structures may be damaged seriously when subjected to impact loading, and it is necessary to strengthen existing structures to improve their impact resistance. Large-rupture-strain fiber-reinforced polymer (LRS-FRP) is a promising material to strengthen RC structures under impact because of its good deformation capacity. This article shows experimental studies on performance of LRS-FRP strengthened RC beams under static and impact loads. The effects of FRP types, loading rate, and the usage or nonusage of end-anchorages on the strengthening efficiency were investigated. The experiment demonstrates LRS-FRP laminate with end-anchorage (EA) to be an appropriate strengthening technique for RC beams under both static and impact loading. The beams strengthened with end-anchored LRS-FRP presented greater ductility than their carbon fiber-reinforced polymer counterpart under static loading, and the end-anchored LRS-FRP strengthening system reduced the maximum deflection and damage of strengthened beam under impact significantly. However, the end-anchorage was more susceptible to damage and failure when the loading rate increased from static to impact. Therefore, the end-anchorage and the end-anchorage-FRP connection should be designed with caution for impact condition.

钢筋混凝土（RC）结构在受到冲击载荷时可能会受到严重破坏，因此有必要加强现有结构以提高其抗冲击性。大断裂应变纤维增强聚合物（LRS-FRP）由于其良好的变形能力，是一种在受到冲击时增强RC结构的有前途的材料。本文显示了在静态和冲击载荷下对LRS-FRP增强的RC梁性能的实验研究。研究了玻璃钢类型，荷载率以及端锚的使用或不使用对加固效率的影响。实验表明，带有端部锚固（EA）的LRS-FRP层压板是在静载荷和冲击载荷下对RC梁进行加固的合适技术。端部锚固的LRS-FRP加固的梁在静载荷下比碳纤维增强的聚合物梁具有更好的延展性，端部锚固的LRS-FRP加固系统显着降低了受冲击时加固梁的最大挠度和破坏。但是，当加载速率从静态增加到冲击时，端部锚固更容易受到破坏和破坏。因此，在设计末端锚固和末端锚固-FRP连接时应谨慎考虑撞击条件。当加载速率从静态增加到冲击时，锚固端更容易受到破坏和破坏。因此，在设计锚固端和锚固-FRP连接时应谨慎考虑冲击条件。当加载速率从静态增加到冲击时，锚固端更容易受到破坏和破坏。因此，在设计锚固端和锚固-FRP连接时应谨慎考虑冲击条件。