高层建筑缺陷混凝土结构置换加固研究现状和关键问题

Research status and critical problem in research on replacement and reinforcement of defective concrete in high-rise buildings

随着我国城市经济的日益发展,高层建筑不断增加,高层建筑的施工变得越来越重要,其施工质量的好坏关系到了城市的发展以及人员的安全。结构构件的混凝土强度不足是建筑施工中常遇见的一类工程问题,会导致构件承载力不足,使结构发生内力重分布,引起结构损伤甚至倒塌。因此,十分有必要在发现问题后对缺陷混凝土构件进行及时的加固修复工作。基于此,列举了国内外关于混凝土结构加固补强的常用方法及其相应的优缺点,并对置换加固法的研究现状和进展进行了总结。对置换加固法函待解决的关键性问题进行了讨论,并指出置换加固法未来的发展趋势。

With the increasing development of urban economy in our country,the number of high-rise buildings continues to increase,and the construction of high-rise buildings has become increasingly important.The quality of construction is related to the development of cities and the safety of personnel.Insufficient concrete strength of structural components is a common engineering problem encountered in construction,which can lead to insufficient bearing capacity of the components,redistribution of internal forces in the structure,and even structural damage and collapse.Therefore,it is necessary to carry out timely reinforcement and repair work on defective concrete components after discovering problems.This review outlines common methods and their corresponding advantages and disadvantages for strengthening concrete structures both domestically and internationally.The research status and progress of displacement reinforcement method is summarized.Some critical problems of replacement reinforcement method that must be resolved are examined and the future development trend of replacement reinforcement method is pointed out.