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摘要:
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钢骨-钢管高强混凝土组合柱是重载柱设计的新模式,它具有很高的承载力和良好的延性,对于大跨和高耸建筑有十分广阔的应用前景。文章采用数值积分方法分析了影响偏心受压钢骨-钢管高强混凝土组合柱承载力的主要因素。计算分析表明由于钢管、钢骨和混凝土的相互作用,可有效地提高柱子的承载力。基于对数值计算结果的分析,给出了偏心受压钢骨-钢管高强混凝土组合柱的承载力计算公式。
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Circular steel column filled with steelreinforced highstrength concrete is a new design model of heavyload columns This kind of colums have the advantages of high bearing capacity and excellent ductility It can be widely used in largespan and highrise buildings In this paper, the numerical method is applied to analyze eccentrically loaded circular steel columns filled with steelreinforced highstrength concrete The major factors that have an influence on the bearing capacity of the composite columns are discussed Numerical analysis shows that bearing capacity of this kind of composite columns can be improved greatly because of the interaction among steel tube, section steel and highstrength concrete Based on the analysis of the calculated results, formulas for predicting the bearing capacity of the composite columns subjected to eccentric compression are proposed
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参考文献:
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[1] 王清湘,赵大洲,关萍.轴心受压钢骨-钢管高强混凝土组合柱力学性能的研究[J].东南大学学报,2002,32(5):710-714.
[2] 潘友谊光,钟善桐.钢管砼的轴压本构关系(上)[J].建筑结构学报,1990,11(1):10-20.
[3] 韩林海,冯九斌.混凝土的本构关系模型及其在钢管混凝土数值分析中的应用[J].哈尔滨建筑大学学报,1995,28(5):26-32.
[4] 过镇海.钢筋混凝土原理[M].北京:清华大学出版社,1999:29-36.
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