钢管砼柱的承载力与变形性能

STRENGTH AND DEFORMATION BEHAVIORS OF CONCRETE FILLED STEEL TUBULAR COLUMNS

钢管砼是钢砼组合结构中应用最早的主要形式之一。在前文对钢砼组合结构模型试验方法探讨的基础上，本文综合分析了日本钢管砼柱试验研究的结果，对在中心受压状态、弯剪压复合受力状态下的钢管砼柱的传力机理、承载力以及变形性能与耗能能力等影响钢管砼柱抗震性能的重要因素分别进行了论述。

Concrete filled tube is one of the earliest types of steel-conerete com posite structures applied in practice．On the basis of the discussion about expert mental methods of steel-conorete composite structured in author’s previous papers，this paper summarizes the results from the experimental study in Japan，anal yses the factors which have influence on seismic behaviors of the CFT columns，sueh as the transmission mechanism of inner Dree，loading capacity and defor mation behaviors，dissipation of energy of the CFT columns under axial loading shear foroe a nd bending moment．