方、矩形钢管混凝土试件界面抗剪强度及横隔板的作用分析
doi: 10.13204/j.gyjz201506030
SHEAR STRENGTH ON THE INTERFACE BETWEEN RECTANGULAR TUBES AND INFILLED CONCRETE AND ITS IMPROVEMENT BY DIAPHRAGM
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摘要: 对国内外进行的47个方钢管混凝土、18个矩形钢管混凝土试件的界面抗剪强度试验进行分析,根据试验数据的下限,提出界面抗剪强度标准值的计算式。同时通过日本的一个试验验证横隔板在增强钢管与混凝土共同工作上的重要作用:阻止了钢管内混凝土与钢管的相对滑移,起到了抗剪件作用。Abstract: This paper analyzed the results of the interface shear strength tests of 47 concrete-filled square steel tube and 18 concrete-filled rectangular steel tube specimens at home and broad. A formulas was proposed for calculating the standard value of interface shear strength. The important role of diaphragms in raising the co-operation of steel tube and concrete was verified by a test in Japan,i. e. the diaphragms could prevent the relative slip between the steel tube and the concrete in it.
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Key words:
- concrete-filled steel tube /
- interface /
- shear strength
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