摘要
在选择了合理的钢材、混凝土本构关系的基础上,利用有限元法进行了方钢管钢骨混凝土抗剪性能模拟。通过对剪跨比的分析,确立了纯剪、弯剪及弯曲破坏的界限剪跨比值,分析了不同套箍率、配骨率、混凝土强度等参数对受剪性能的影响。最后,通过对计算结果的回归分析,得出了实用的方钢管钢骨混凝土抗剪承载力计算公式,计算结果与相关文献结果吻合很好。
Based on rational model of steel and concrete, square steel tube filled with steel -reinforced concrete subjected to shear force are simulated by finite units method. Limit value of broken on pure shear, bending - shear and bending are given. Effects of stirrup ratio, steel reinforced ratio, strength of concrete under shear force are also analyzed. Finally, formula for pure shear capacity of square steel tube filled with steel - reinforced concrete by research the calculated results. Calculated results showed that it agreed well with that ofcorresponding document.
出处
《北方交通》
2013年第4期73-75,共3页
Northern Communications
关键词
方钢管混凝土
抗剪承载力
有限元
计算公式
Concrete filled square steel tube
Shear capacity
Finite units
Computation formula
