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ELASTOPLASTIC BEARING CAPACITY ANALYSIS FOR CONCRETE-FILLED STEEL TUBE T-SHAPED COLUMNS
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摘要: 按幂规律强化的应力-应变关系建立T形钢管混凝土短柱单向小偏压的计算模型,推导了T形和矩形钢管混凝土短柱极限强度承载力的计算公式,并分析了翼缘高度对承载力的影响。最后,用数值算例验证了推导公式的正确性和有效性。Abstract: An approach to the ultimate load analysis of the concrete-filled steel tube T shaped columns is presented.Based on the calculation mode of stress-strain relation growing according to exponential rule for the composite materials,calculation formula of elastic-plastic bearing capacity is deduced,and the influence of sectional dimension is analyzed by the formula.Finally,a numerical example confirms the correctness and validity of the proposed computation formula.
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Key words:
- concrete-filled steel tube /
- elastoplasticity /
- bearing capacity /
- eccentricity
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