复合材料科学与工程Issue(11)：82-87,6.DOI:10.19936/j.cnki.2096-8000.20241128.011
新型封闭式复丝缠绕CFRP箍筋抗拉强度正交试验研究
Orthogonal test of a new type of closed compound filament wound CFRP stirrup
摘要
Abstract
A new type of CFRP stirrup production process was proposed,and a new type of closed composite wire winding CFRP stirrup was designed and manufactured,which is characterized by direct winding of carbon fiber composite wire,avoiding the problem of weak tensile strength of stirrup caused by folding at the bend,and impro-ving the performance of traditional pultrusion FRP stirrup at the bend.The effects of bending radius,multiple wire layers,stirrup width and concrete strength on the tensile strength of CFRP stirrup were analyzed by orthogonal ex-periment.The results show that the number of multiple wire layers is the biggest factor affecting the tensile strength at the bending point of the new enclosed composite wire wound CFRP stirrup,and it is inversely proportional to the tensile strength at the bending point of the stirrup.Secondly,with the increase of stirrup width and bending radius,the tensile strength of stirrup increases,and the linear relationship is approximately positive.The influence of con-crete strength on the tensile strength at the bend of stirrup is not obvious,and there is no obvious rule.The results show that the new process can obviously improve the tensile strength compared with the traditional process,and has a good engineering application prospect.关键词
弯曲强度/CFRP箍筋/正交试验/箍筋工艺/箍筋公式Key words
bending strength/CFRP stirrup/orthogonal test/stirrup technology/stirrup formula分类
通用工业技术引用本文复制引用
宋岩超,蒋济同..新型封闭式复丝缠绕CFRP箍筋抗拉强度正交试验研究[J].复合材料科学与工程,2024,(11):82-87,6.基金项目
国家自然科学基金(912121730) （912121730）
