基于城市更新的混凝土结构加固改造研究综述
Overview of Research on the Reinforcement and Renovation of Concrete Structures Based on Urban Renewal

随着城市化步伐的加快以及建筑老化问题的日益凸显，对现有混凝土结构实施加固与改造已成为推动城市复兴与实现可持续发展的核心策略之一。这一领域的深入探索，不仅旨在强化建筑物的安全防线，更着眼于城市风貌的美化、居民居住品质的飞跃，以及资源节约与高效利用的目标达成。近年来，混凝土结构加固改造技术领域取得了长足进展，孕育了一系列成熟且多元化的技术方案，如碳纤维布粘贴加固、钢外包加固、截面增大法以及粘钢加固等，这些方法各具特点，充分展现了改造加固技术的丰富性与适应性。其中，包钢加固法凭借其工艺上的成熟性和广泛的适用性，成为了近些年来研究的热点。尽管该方法在实践中展现出显著效果，但尚存在理论层面的瓶颈，如钢板与混凝土之间相互作用机制尚未充分厘清，相应的力学分析模型也有待完善。因此，为了进一步挖掘包钢加固法的潜力，提升加固改造效果的科学性与可靠性，亟待开展更为深入细致的试验研究与理论分析，以期破解现有难题，推动该技术在未来的城市更新与建筑加固改造工程中发挥更加重要的作用。
With the acceleration of urbanization and the increasingly prominent problem of building aging, the reinforcement and renovation of existing concrete structures has become one of the core strategies to promote urban revitalization and achieve sustainable development. The in-depth exploration in this field not only aims to strengthen the safety defense line of buildings, but also focuses on beautifying the urban landscape, improving the quality of residents’ living, and achieving the goals of resource conservation and efficient utilization. In recent years, significant progress has been made in the field of the reinforcement and renovation technology of concrete structures, giving birth to a series of mature and diversified technical solutions, such as carbon fiber cloth bonding reinforcement, clad steel reinforcement, section enlargement method, and steel bonding reinforcement. These methods have their own characteristics, fully demonstrating the richness and adaptability of renovation and reinforcement technology. Among them, the clad steel reinforcement has become a hot research topic in recent years due to its mature technology and wide applicability. Although this method has shown significant results in practice, there are still theoretical bottlenecks, such as the unclear interaction mechanism between steel plates and concrete, and the corresponding mechanical analysis models need to be improved. Therefore, in order to further explore the potential of the clad steel reinforcement method and improve the scientific and reliable effectiveness of reinforcement and renovation, it is urgent to carry out more in-depth and detailed experimental research and theoretical analysis, so as to solve the existing problems and promote the technology to play a more important role in the future of urban renewal and reinforcement and renovation of building projects.