| 钢管再生混凝土柱承载力及抗火性能研究 |
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| 引用本文： | 刘轶翔,查晓雄.钢管再生混凝土柱承载力及抗火性能研究[J].建筑钢结构进展,2012,14(3):48-52. |
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| 作者姓名： | 刘轶翔 查晓雄 |
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| 作者单位： | 哈尔滨工业大学深圳研究生院,广东深圳,518055 |
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| 摘 要： | 通过试验和理论对空、实心钢管再生混凝土柱的极限承载力做了研究,研究表明,实心钢管再生混凝土短柱可以采用实心钢管普通混凝土短柱的极限承载力计算公式。空心钢管再生混凝土长柱的承载力与再生混凝土弹性模量有关。火灾试验表明,钢管再生混凝土长柱的耐火性能要优于钢管普通混凝土,根据试验提出了钢管再生混凝土柱耐火时间的计算公式。
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| 关 键 词： | 钢管再生混凝土 承载力 抗火性能 计算公式 |
Study on the Ultimate Bearing Capacity and the Fire-Resistance of Recycled Concrete Filled Steel Tubular (R-CFST) Columns |
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| LIU Yi-xiang
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ZHA Xiao-xiong.Study on the Ultimate Bearing Capacity and the Fire-Resistance of Recycled Concrete Filled Steel Tubular (R-CFST) Columns[J].Progress in Steel Building Structures,2012,14(3):48-52. |
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| Authors: | LIU Yi-xiang ZHA Xiao-xiong |
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| Affiliation: | (Shenzhen Graduate School,Harbin Institute of Technology,Shenzhen 518055,China) |
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| Abstract: | The bearing capacity of solid and hollow recycled concrete filled steel tubular(R-CFST) columns have been studied through experiments and theories.The research indicates that the ultimate bearing capacity formula under biaxial compression of solid concrete filled steel tubular(S-CFST) short columns can be used for solid recycled concrete filled steel tubular(SR-CFST)short columns.The ultimate bearing capacity formula under biaxial compression of hollow recycled concrete filled steel tubular(HR-CFST) long columns is related to the elastic modulus of recycled concrete.The fire tests indicate that fire-resistanee performance of R-CFST long columns is better than that of ordinary CFST long columns and the computational formula of fire resistance period of R-CFST long columns has been given. |
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| Keywords: | recycled concrete filled steel tube bearing capacity fire-resistance performance computational formula |
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