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    李國(guó)強(qiáng)  賀軍利    （同濟(jì)大學(xué)  上海 200092）

    韓林海     （哈爾濱建筑大學(xué)  150090）

[提要]  采用ECC,S的計(jì)算模型和單元分析的計(jì)算模式，利用計(jì)算機(jī)程序，經(jīng)過(guò)人量統(tǒng)計(jì)分析與計(jì)算，得到了鋼管混凝土軸壓構(gòu)件抗火承載力的回歸計(jì)算公式，并與國(guó)內(nèi)外的結(jié)果對(duì)比，吻合較好，適于應(yīng)用。
[關(guān)鍵詞]  鋼管混凝土  軸壓  抗火  承載力

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