Research Progress, Challenges and Future Trends of Structural Retrofitting Technology

在既有建筑与基础设施性能劣化及功能升级需求背景下，结构加固技术成为保障安全、提升效能的关键手段。本文系统梳理了常见加固方法的作用机理、工程应用及技术局限，探讨了不同类型结构的加固策略，分析了当前技术面临的挑战，对未来发展前景进行了展望。研究成果为既有结构改造提供技术参考，推动建筑行业可持续发展。Against the backdrop of performance degradation in existing buildings and infrastructure, as well as the growing demand for functional upgrades, structural retrofitting technology has become a critical means to ensure safety and enhance efficiency. This paper systematically reviews the working mechanisms, engineering applications, and technical limitations of common retrofitting methods, discusses retrofitting strategies for different types of structures, and analyzes the challenges faced by current technologies. The future development prospects are also prospected. The research results provide technical references for the renovation of existing structures and promote the sustainable development of the construction industry.