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为了建立钢筋混凝土深梁抗剪承载力分析模型,利用模糊综合评判方法分析深梁抗剪承载力的主要影响因素,包括剪跨比、混凝土强度、水平钢筋屈服强度和竖向钢筋屈服强度。结合模糊集理论,比较并选取权重确定方法,以确定各因素的权重。算例比较分析结果表明,运用模糊综合评判方法评判深梁的抗剪承载力简便易行,评判结果与试验结果吻合较好,具有较大的工程实用价值。
In order to establish the analysis model of shear strength of reinforced concrete deep beams, the main influencing factors of shear strength of deep beams, including shear span ratio, concrete strength, horizontal reinforcement yield strength and vertical reinforcement yield strength, are analyzed by fuzzy comprehensive evaluation method. Combining with fuzzy set theory, we compare and select the weight determination method to determine the weight of each factor. The comparative analysis of the examples shows that the fuzzy comprehensive evaluation method is simple and easy to judge the shear strength of deep beams, and the evaluation results are in good agreement with the test results, which has great practical value.