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为了研究鱼骨型异形型钢混凝土柱受力性能,进行了试验及分析。在1/6缩尺模型上进行了偏心加载和轴向加载;基于截面纤维模型编制了异型型钢混凝土柱截面的承载力分析程序。试验研究表明:偏压试件和轴压试件均表现出较好的延性,这两种试件的破坏模式均为型钢、纵筋、箍筋先屈服,最终混凝土压溃。该程序能准确地预测异形型钢混凝土柱的正截面压弯承载力,可用于异形型钢混凝土的截面设计。
In order to study the stress behavior of fishbone shaped concrete columns, experiments and analyzes were carried out. Eccentric loading and axial loading were carried out on 1/6 scale model. The bearing capacity analysis program of profiled steel reinforced concrete columns based on section fiber model was compiled. The experimental results show that both the biased specimen and the axial specimen show better ductility. The failure modes of the two specimens are all those of the profile steel, the longitudinal reinforcement and the stirrups, and finally the concrete is crushed. The program can accurately predict the right cross-section bending strength of profiled steel reinforced concrete columns and can be used to design the cross-section of profiled steel concrete.