本文介绍了采用高强预应力筋的体外预应力技术在结构加固中的应用。结合工程实例，说明了体外预应力加固设计中所涉及的荷载效应组合、极限设计、预应力损失等主要问题的设计计算及构造设计方法。 This article describes the application of high-strength prestressed tendons in external prestressing technology in structural reinforcement. Combined with engineering examples, the design calculations and structural design methods of the main problems such as load effect combinations, limit design, and prestress loss involved in the design of external prestressed reinforcement are illustrated.