钢管混凝土粘结性能研究现状

摘要

综述国内外关于钢管混凝土界面粘结性能的研究成果,分析对比了混凝土强度、界面形式、钢材类型、钢管长径比及径厚比等参数变化对钢管混凝土界面粘结性能的影响特征.根据参数对比的情况,提出改善钢管混凝土粘结性能的有效措施及现有研究亟待解决的问题.%This paper summarizes the research results on the bonding properties of concrete -filled steel tube at home and abroad,the influence of the parameters such as the strength of concrete,the interface form,the type of steel,the aspect ratio of steel pipe and the ratio of diameter to diameter on the bonding properties of concrete filled steel tube are analyzed and compared.According to the comparison of parameters,the paper puts forward the effec-tive measures to improve the bonding performance of concrete-filled steel tube and the problems to be solved ur-gently.