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在收集多个高强钢筋混凝土框架柱低周循环加载下的试验数据和骨架曲线模型计算公式的基础上,综合考虑柱端轴压比、剪跨比、配箍率和混凝土强度等因素的影响,提出了高强钢筋混凝土框架柱的骨架曲线特征点计算公式和三折线骨架曲线模型。经过分析,文章公式计算结果与收集的试验数据吻合较好,可为高强钢筋混凝土框架柱的地震反应分析提供参考。
Based on the experimental data collected under low-cycle loading and the calculation formula of the skeleton curve model, the influence of such factors as axial compression ratio, shear span ratio, stirrup ratio and concrete strength were comprehensively considered. The calculation formula of the characteristic curve of the skeleton curve and the curve model of the tri-fold skeleton are put forward for the high-strength reinforced concrete frame column. After analysis, the formula of the article is in good agreement with the collected experimental data, which can provide reference for the seismic response analysis of high-strength reinforced concrete frame columns.