混凝土置换法在剪力墙结构加固中的应用研究进展

A Review of the Concrete Replacement in the Shear Wall Structural Reinforcement

随着结构加固理论和技术的不断发展,越来越多的学者对混凝土置换加固技术展开了研究。文章总结了近年来混凝土置换加固技术工程应用以及设计理论的研究进展,分析了已有的研究成果和问题。分析表明:置换混凝土加固法可有效解决结构混凝土强度不足的问题,适用于承重结构受压区混凝土强度偏低或有局部严重缺陷的加固;然而,现有研究缺乏置换过程中对结构受力变形的控制指标以及能够广泛应用于实际置换工程当中的设计理论方法;在模拟免支撑混凝土置换过程时,应考虑施工过程中置换用材料的时变效应。未来,解决这些问题是工程应用与理论研究中值得关注的重点方向。

With the development of structural reinforcement technology,more and more scholars have carried out research on the method of concrete replacement reinforcement.This paper summarizes the research progress of engineering application and design theory of concrete replacement reinforcement in recent years,and analyzes the results and problems of existing research.The analysis shows that the concrete replacement reinforcement can effectively solve the problem of insufficient strength of structural concrete,and is suitable for the reinforcement of concrete with low strength or local serious defects in the compression area.However,existing research lacks the analysis of structural deformation during the replacement process and the design theory that can be widely used in the engineering application.When simulating the process of support-free concrete replacement reinforcement,the time-varying effect of the replacement material in the construction process should be considered.In the future,solving these problems is a key direction in engineering application and theoretical research.