李国强  贺军利    （同济大学  上海 200092）

    韩林海     （哈尔滨建筑大学  150090）

[提要]  采用ECC,S的计算模型和单元分析的计算模式，利用计算机程序，经过人量统计分析与计算，得到了钢管混凝土轴压构件抗火承载力的回归计算公式，并与国内外的结果对比，吻合较好，适于应用。
[关键词]  钢管混凝土  轴压  抗火  承载力

A large amount of statistic calculation on the squash load of ccntrally loadcd concrctc-fillcd stccl tubular columns cxposcd to fire has bccn carricd out through using the computcr program, and the rcgrcssion formulas arc cstablishcd. From the comparisons of rcsults rcspcctivcly obtaincd by the formulas and cxpcrimcnts, it is concludcd that the formulas arc applicable with rcasonable accuracy for firc-rcsistant dcsign of concrcte fillcd stccl tubular columns.
Keywords:  concrctc-fillcd stccl tubular columns; ccntrally loadcd; firc-rcsistant; load-bcaring capacity