运用双因素方差分析法分析桥梁加固构件的承载力

Analysis of Bearing Capacity of Reinforced Bridge Components by Two-factor ANOVA

运用SPSS软件,采用有交互作用的双因素方差分析法,选取混凝土强度和FPR筋直径这两个影响因素,对加固构件承载力影响的显著性进行分析,研究得出:嵌入FPR筋材的直径为7.4mm时,混凝土强度等级对加固构件的承载力无显著影响;嵌入FPR筋材的直径为11.5mm时,混凝土强度等级对加固构件的承载力有显著影响;混凝土强度等级为C20时,嵌入FPR筋材直径对加固构件的承载力无显著影响;混凝土强度等级为C40时,嵌入FPR筋材直径对加固构件的承载力有显著影响。

Using SPSS software and the interactive two-factor analysis of variance method,the two influencing factors of concrete strength and FPR reinforcement diameter are selected to analyze the significance of the influence on the bearing capacity of reinforced members.The research shows that when the diameter of embedded FPR reinforcement is 7.4mm,the strength grade of concrete has no significant influence on the bearing capacity of reinforced members;When the diameter of embedded FPR reinforcement is 11.5mm,the strength grade of concrete has a significant impact on the bearing capacity of reinforced members;When the concrete strength grade is C20,the diameter of embedded FPR reinforcement has no significant effect on the bearing capacity of reinforced members;When the concrete strength grade is C40,the diameter of embedded FPR reinforcement has a significant impact on the bearing capacity of reinforced members.