| 轴心受压SRC柱受火全过程数值分析 |
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| 引用本文： | 杜二峰,毛小勇,舒赣平.轴心受压SRC柱受火全过程数值分析[J].消防科学与技术,2011,30(6):460-462,472. |
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| 作者姓名： | 杜二峰 毛小勇 舒赣平 |
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| 作者单位： | 1. 东南大学土木工程学院,江苏南京,210096
2. 苏州科技学院土木工程学院,江苏苏州,215011 |
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| 基金项目： | 国家自然科学基金资助项目，苏州市高层次人才项目，江苏省结构工程重点实验室开放课题 |
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| 摘 要： | 在确定升、降温段钢材和混凝土材料性能的基础上,利用通用有限元软件ANSYS对轴心受压型钢混凝土柱受火全过程进行计算分析。结果表明截面温度滞后现象比较明显,在降温后的较长时间内构件内部仍在升温,SRC柱性能进一步劣化,其抗火能力最不利阶段发生在火灾降温过程中。
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| 关 键 词： | 型钢混凝土柱 火灾全过程 轴心受压 温度场 |
Numerical analysis of centrally compressed SRC columns exposed to stand fire including heating and cooling |
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| DU Er-feng,MAO Xiao-yong,SHU Gan-ping.Numerical analysis of centrally compressed SRC columns exposed to stand fire including heating and cooling[J].Fire Science and Technology,2011,30(6):460-462,472. |
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| Authors: | DU Er-feng MAO Xiao-yong SHU Gan-ping |
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| Affiliation: | DU Er-feng1,MAO Xiao-yong2,SHU Gan-ping1 (1.School of Civil Engineering,Southeast University,Jiangsu Nanjing 210096,China,2.School of Civil Engineering,Suzhou University of Science and Technology,Jiangsu Suzhou 215011,China) |
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| Abstract: | Based on the definition of the thermal and mechanical properties of steel and concrete both in temperature rise period and temperature drop period,the reaction of steel reinforced concrete(SRC) columns during the whole period of stand fire was simulated by ANSYS.The calculated results showed that the temperature of the inner cross-section increases slowly compared with hot air in temperature rise period,and it still increases during some time in temperature drop period.The fire resistance capacity of SRC co... |
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| Keywords: | steel reinforced concrete columns whole period of fire axial compression temperature field |
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