论文部分内容阅读
以文献中共21个含钢率在20%以下的型钢混凝土柱为对象,分析和回归出包括高含钢率在内的,以屈服点、峰值点和极限点为特征点的型钢混凝土柱骨架曲线特征点计算式,分析并考察了含钢率、配箍率特征值和截面尺寸等因素的影响,提出了分别适用于含钢率介于10%~20%和含钢率低于10%的内置十字形带翼缘型钢的型钢混凝土柱恢复力模型。研究表明:各参数对型钢混凝土柱骨架曲线各特征点均有不同程度的影响,建议的三折线模型考虑了多种因素的影响,与试验结果相接近,可供内置十字形带翼缘型钢的型钢混凝土柱非线性地震反应分析和工程设计应用。
A total of 21 types of SRC columns with steel content less than 20% were analyzed and returned in the literature, and the characteristic points of the SRC columns including the yield point, the peak point and the limit point were analyzed and returned The influence of such factors as the steel content, the characteristic value of the stirrup and the size of the cross section has been analyzed and investigated. It is proposed that the built - in ten Restoration force model of steel reinforced concrete columns with flanged section steel. The results show that each parameter has different influence on the characteristic points of the skeleton curve of SRC columns. The proposed tri-fold line model considers the influence of many factors and is close to the experimental results, which can be used for the built-in cruciform flange steel Nonlinear Seismic Response Analysis and Engineering Design of Steel Reinforced Concrete Column.