本文選題：鋼管混凝土柱 + 鋼筋混凝土梁　； 參考：《工程力學(xué)》2014年S1期

【摘要】：建立了外荷載和升、降溫火災(zāi)共同作用下鋼管混凝土柱-鋼筋混凝土梁平面框架結(jié)構(gòu)的有限元分析模型,用已有試驗(yàn)數(shù)據(jù)對(duì)模型進(jìn)行了驗(yàn)證。在有限元模型基礎(chǔ)上,對(duì)鋼管混凝土柱-鋼筋混凝土梁平面框架在ISO-834標(biāo)準(zhǔn)升、降溫火災(zāi)下的力學(xué)性能進(jìn)行了分析,研究了梁荷載比、柱荷載比和升溫時(shí)間比等參數(shù)的影響規(guī)律。分析結(jié)果表明該組合框架不僅會(huì)在升溫過(guò)程中破壞,也會(huì)在降溫過(guò)程中破壞。該組合框架是否會(huì)在降溫段發(fā)生破壞,跟梁荷載比、柱荷載比和升溫時(shí)間比有關(guān)。
[Abstract]:The finite element analysis model of concrete-filled steel tubular column-reinforced concrete beam plane frame structure under the combined action of external load, rising and cooling fire is established, and the model is verified by existing experimental data.Based on the finite element model, the mechanical properties of concrete filled steel tubular column-reinforced concrete beam plane frame under ISO-834 standard rising and cooling fire are analyzed, and the influence law of beam load ratio, column load ratio and heating time ratio are studied.The results show that the combined frame will not only destroy in the process of heating, but also in the process of cooling.Whether the composite frame will be destroyed in the cooling section is related to the ratio of beam load to column load and the ratio of heating time.
【作者單位】： 清華大學(xué)土木工程系;西悉尼大學(xué)基礎(chǔ)設(shè)施工程研究院;
【分類號(hào)】：TU398.9

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