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工业建筑  2006 

火灾作用后钢管混凝土轴压与纯弯荷载-变形关系曲线实用计算方法探讨

DOI: 10.13204/j.gyjz200611002, PP. 6-10

Keywords: 钢管混凝土,轴压,抗弯,承载力,火灾后

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Abstract:

在数值计算结果的基础上,对火灾作用后钢管混凝土轴压强度承载力和抗弯承载力指标问题进行探讨,并给出其简化计算公式,简化计算结果与试验结果吻合较好。通过分析火灾后荷载-变形全过程关系各阶段的力学指标,提出火灾后轴压σ-ε关系和纯弯M-关系全过程曲线的实用计算方法,简化计算结果与试验结果吻合较好,为进行火灾后钢管混凝土结构体系分析提供依据。

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