摘要
针对钢筋混凝土框架节点设计常用的MCFT理论和斜压杆模型存在的不足,在以往试验的基础上,利用能全面反映节点三种传力机理的拉-压杆模型方法,对UHTCC局部增强混凝土框架节点建立基于拉-压杆模型抗剪承载力计算公式。结果表明:基于拉-压杆模型的抗剪承载力计算值与试验值和现行规范计算值吻合良好。在此基础上分析了不同配箍率和试验轴压比对UHTCC局部增强混凝土框架节点抗剪承载力的影响。
The MCFT theory and strut model used in the reinforced concrete frame joint are insufficient. Based on the strut and tie model which can reflects three kinds of load transfer mechanism, the paper establishes a Calculation formula of shear capacity based on strut and tie model in UHTCC concrete. Research shows that the calculation results are eonsistent with the test. It then studies the effect on UHTCC concrete joints by different stirrup ratio and axial compression ratio.
作者
苏骏
蔡俊
SU Jun CAI Jun(School of Civil Engin. ,Architecture and Environment, Hubei Univ.o f Tech. ,Wuhan 430068, Chin)
出处
《湖北工业大学学报》
2017年第2期84-87,共4页
Journal of Hubei University of Technology
