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首页> 外文期刊>International journal of steel structures >Prediction of Hysteretic Behavior of High-Strength Square Concrete-filled Steel Tubular Columns Subjected to Eccentric Loading
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Prediction of Hysteretic Behavior of High-Strength Square Concrete-filled Steel Tubular Columns Subjected to Eccentric Loading

机译：偏心荷载作用下高强方形钢管混凝土柱的滞回性能预测

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摘要

This study aimed at predicting the structural behavior of high-strength square CFT (concrete-filled steel tube) columns. First, the material models of the existing steel tube and concrete were compared, and a nonlinear fiber element analysis method was proposed. To verify the proposed fiber element analysis method, the behavior of CFT columns made from high-strength materials was investigated experimentally. CFT members consisted of high-strength steel tubes (yield strength; f_y=913 MPa) and high-strength concrete (f_(ck)=91.3 MPa). The moment-rotation relationships for hollow and concrete-filled steel tubes were compared. In addition, the P-M interaction diagrams for the experiment result and AISC-LRFD code provisions were compared. Finally, the result of the fiber element analyses was compared with the test results.
机译：这项研究旨在预测高强度方钢管混凝土（CFT）柱的结构性能。首先，比较了现有钢管和混凝土的材料模型，提出了一种非线性纤维单元分析方法。为了验证所提出的纤维元素分析方法，对高强度材料制成的CFT色谱柱的性能进行了实验研究。 CFT构件由高强度钢管（屈服强度； f_y = 913 MPa）和高强度混凝土（f_（ck）= 91.3 MPa）组成。比较了空心钢管和混凝土钢管的弯矩-旋转关系。此外，还比较了实验结果的P-M交互图和AISC-LRFD代码规定。最后，将纤维元素分析的结果与测试结果进行比较。

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