CFRP约束混凝土圆柱轴心受压性能研究  

Study on the axial compression performance of concrete columns confined with CFRP

作　　者：梁靖波[1] 余华秋[1] 朱江[1] 龙跃凌[1] 

机构地区：[1]广东工业大学土木与交通工程学院,广东广州510006

出　　处：《混凝土》2013年第1期6-9,共4页Concrete

基　　金：国家自然科学基金项目(51008085);广东省自然科学基金项目(S2011010004929)

摘　　要：对16个试件进行了CFRP约束素混凝土圆柱的轴心受压试验研究,考察了不同混凝土强度和不同CFRP布层数对约束混凝土柱的破坏形态和极限抗压强度以及变形的影响。结果表明:对不同强度等级的混凝土圆柱,在轴心受压作用下CFRP布层数所起的约束效果不同。强度等级较低的混凝土圆柱,随着CFRP约束层数的增加,极限抗压强度和轴向变形提高显著,而强度等级较高的混凝土圆柱,增加CFRP层数对提高圆柱的极限抗压强度和轴向变形效果不明显。Sixteen circular plain concrete columns confined with CFRP were axially tested.The effects of the concrete strength and the layers of CFRP to the failure mode and the ultimate axial compressive strength and the deformation were investigated as well.The results showed that the confined effects of CFRP sheets to the circular plain concrete columns would be different with the strength grade of concrete.The ultimate compressive strength and the axial deformation were significantly increased with the addition of CFRP layers to the circular concrete columns with lower strength rather than that with higher strength.

关 键 词：CFRP 圆柱 轴压 约束 应力 

分 类 号：TU528.01[建筑科学—建筑技术科学]