应用改进的稳健设计法分析短牛腿的抗剪承载力  

Improved Robust Design Method to Analyze Shear Strength of Short Corbel

作　　者：刘华新[1] 刘红艳[1] 张晓东[1] 孙荣书[1] 

机构地区：[1]辽宁工业大学土木建筑工程学院,锦州121001

出　　处：《武汉理工大学学报（交通科学与工程版）》2011年第4期666-669,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：辽宁省教育厅高等学校科研基金项目资助(批准号:2008317)

摘　　要：介绍了改进的稳健设计法,并引入新的信噪比.用软化桁架模型分析钢筋混凝土短牛腿抗剪承载力,并应用改进的稳健设计法分析影响钢筋混凝土短牛腿抗剪承载力的几个基本因素,考虑的因素包括混凝土抗压强度、剪跨比和钢筋屈服强度.通过分析可知钢筋屈服强度这个因子对短牛腿抗剪承载力最为敏感,剪跨比和混凝土抗压强度次之.与田口方法相比改进的稳健设计法的分析结果与试验结果吻合较好,应用更加准确、方便.The improved robust design method and the new signal-to-noise are introduced.The softened truss model is applied to analyze shear strengths of RC short corbel,the improved robust design method is applied to analyze several important factors of shear strength of RC short corbel,and the reviewed factors included the concrete compression strength,the shear span ratio and the yield strength of reinforce.The yield strength of reinforce is the most important factor to effect the shear strength of component,next to the shear span ratio,the minimum factor is concrete compression strength.The results give the important degree of different factors,the result of improved robust design method is concordance with the result of test when it compares with Taguchi method,and it is more accurate and more convenient than Taguchi method.

关 键 词：改进的稳健设计法 信噪比 短牛腿 抗剪承载力 

分 类 号：TB114[理学—概率论与数理统计]