钢纤维钢筋混凝土扁梁柱节点极限抗剪承载力的计算方法  

Calculation Method on the Ultimate Shearing Capability of Flab Beam-column Joints with Steel Fiber Concrete

作　　者：季韬[1] 钱在兹[2] 庄一舟[2] 

机构地区：[1]福州大学土建学院,350002 [2]浙江大学土木系,杭州310027

出　　处：《建筑结构》2000年第9期49-52,共4页Building Structure

基　　金：高等学校博士学科点专项科研基金资助课题.基金编号:98033527

摘　　要：在四个扁梁柱节点试验的基础上,研究了钢纤维钢筋混凝土节点内钢筋应变的变化规律,分析了节点内、外核心区的混凝土、剪力筋和钢纤维对扁梁柱节点极限抗剪承载能力的贡献,提出了节点极限抗剪承载力的计算公式及截面限制条件,并给出了节点的两种破坏形态的判别方法.计算结果与试验情况符合良好.提出的计算公式可供工程设计参考使用.Based on the experiments of four flab beam-column joints, this paper studied the rule about the strains of the steel bars in the steel fiber reinforced concrete flab beam-column joints, analyzed the attribution of the concrete, the shear steel bar and the steel fiber in exterior and interior joint cores to the ultimate shear resistant capacity of flab beam-column joints, and proposed a calculation equation of the ultimate shear resistant capacity of the steel fiber reinforced concrete flab beam-column joints and an equation defining the minimal section dimension of the joints. A way discriminating two kinds of failure models was also given. The results of calculation correspond to the case of test. These equations proposed can be a reference in engineering design.

关 键 词：扁梁柱节点 钢纤维钢筋混凝土 核心区 抗剪承载 

分 类 号：TU377.901[建筑科学—结构工程]