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中文摘要：
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-Ф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。
英文摘要：
Based on theoretical analysis results, the indexes of the axial compression and flexural bearing capacities of concrete filled steel tube after exposure to fire are discussed. The simplified formulae for the calculation of the post-fire axial compression and bending bearing capacities are provided by regression. The simplified results are in good agreement with test results. The post-fire behaviors and charaterestics of the axial and flexural load versus deformation relations were analysed, and the post-fire simplified models of axial load versus deformation and moment versus curvature are presented. Comparisons of calculated results using simplified method show a good agreement with test results. The simplified method can provide a basis for concrete filled steel tubular structural analysis after exposure to fire.
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Behaviour of steel beam to concrete-filled SHS column frames: finite element model and verifications
Cyclic performance of concrete filled steel tubular columns after exposure to fire: analysis and sim
Strength and ductility of stiffened thin-walled hollow steel structural stub columns filled with con
Behaviour of concrete-filled steel tubular members subjected to shear and constant axial compression
Experimental Behaviour of Steel Beam to Concrete-Filled Steel Tubular (CFST) Column Connections Afte
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