摘要
CFRP材料具有强度高、质量轻、耐腐蚀和耐久性好等特点,但在新建建筑中应用CFRP管混凝土柱施工复杂,成本高昂,而采用在薄壁钢管外缠绕CFRP布,用钢管作为CFRP布的施工模板,可大大简化施工过程,且能满足对柱子截面形状的要求,应用前景广阔。该文通过对圆CFRP-钢复合管约束混凝土短柱的轴压静力性能进行试验研究,对比并建议了圆CFRP-钢复合管约束混凝土短柱的轴压承载力计算方法,可供实际工程设计参考。
CFRP material has many advantages such as high strength, light weight, good durability and corrosion resistance, but the construction procedure of concrete columns confined by CFRP tube is rather complicated, leading to relatively high cost. Instead, CFRP can be utilized to strengthen steel tube confined concrete columns, in which steel tubes serve as the formwork for the construction of CFRP. Therefore, CFRP-steel tube confined concrete columns are very suitable for concrete structures because of their excellent mechanical properties and convenient construction. In this paper, the behavior of circular CFRP-steel tube confined concrete stub columns subjected to axial compression was investigated through experimental study. Associated methods for calculating the ultimate loading capacity of circular CFRP-steel tube confined concrete stub column were compared and recommended for practical design.
出处
《工程力学》
EI
CSCD
北大核心
2017年第6期41-50,共10页
Engineering Mechanics
基金
国家自然科学基金项目(51508052)
中央高校基本科研业务费项目(CDJZR12200025)
关键词
CFRP-钢复合管约束混凝土
短柱
轴压
荷载-轴向变形曲线
极限承载力
CFRP-steel tube composite confined concrete
stub column
axial compression
load-axial deformation relation
ultimate bearing capacity
