SRC柱抗剪承载力影响参数的灰色关联分析

Grey Relational Analysis of Parameters on Shear Carrying Capacity of SRC Column

基于灰色系统理论的关联度分析方法,利用已有型钢混凝土(SRC)柱抗剪承载力的试验研究资料,对20根剪压破坏的型钢混凝土柱抗剪强度的影响因素进行关联度计算,得出各试验参数对型钢混凝土柱斜截面抗剪承载力影响程度的大小排序.结果表明,影响型钢混凝土柱抗剪承载力的试验参数,从大到小排列依次为型钢腹板的面积、混凝土强度、剪跨比、箍筋和轴力.同时,通过对试验数据的回归,提出型钢混凝土柱抗剪承载力的计算公式,经验证和试验结果吻合较好.

Based on the test data of twenty steel reinforced concrete （SRC） columns with shear-compression failure, the influence of experimental parameters on the shear-carrying capacity of SRC columns is analyzed by grey relational method, the influential order of the parameters is established. The analysis result indicates that the influential order on the shearcarrying capacity from large to small is the area of steel web, strength of concrete, shear span ratio, stirrup and axial load. According to the regression of experimental data, the formula to calculate the shear capacity of SRC columns is put forward, the calculation results agree well with the test results.