| 钢骨混凝土抗火性能非线性分析 |
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| 引用本文： | 陆洲导,余江滔,徐朝晖.钢骨混凝土抗火性能非线性分析[J].同济大学学报(自然科学版),2006,34(11):1445-1450. |
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| 作者姓名： | 陆洲导 余江滔 徐朝晖 |
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| 作者单位： | 同济大学,结构工程与防灾研究所,上海,200092 |
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| 摘 要： | 进行了12个钢骨混凝土柱火灾下反应的试验．利用有限单元法和有限差分法的混合解法，编制有限元计算程序，得到钢骨混凝土柱的温度分布和极限承载力的数值计算方法．通过程序计算与火灾试验结果的对比分析，验证了分析理论和计算程序的可靠性．通过各种受火时间、长细比和偏心距的钢骨混凝土柱抗火性能的计算，得出了相应的极限承载力计算公式．
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| 关 键 词： | 钢骨混凝土柱 火灾 温度场 有限元 |
| 文章编号： | 0253-374X（2006）11-1445-06 |
| 收稿时间： | 03 30 2005 12:00AM |
| 修稿时间： | 2005-03-30 |
Nonlinear Analysis of Steel Reinforced Concrete Columns Under Fire |
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| LU Zhoudao,YU Jiangtao,XU Zhaohui.Nonlinear Analysis of Steel Reinforced Concrete Columns Under Fire[J].Journal of Tongji University(Natural Science),2006,34(11):1445-1450. |
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| Authors: | LU Zhoudao YU Jiangtao XU Zhaohui |
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| Institution: | Research Institute for Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China |
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| Abstract: | The experiments of 12 steel reinforced concrete(SRC) columns were carried out in fire.On the basis of a combined method of finite element and finite-difference,a finite element procedure for the temperature distribution and fire resistance capacity of SRC columns is programmed.Based on a comparative study of the test data and calculated results,the reliability of the procedure is validated both at elevated temperatures and ambient temperature.After analyzing the response of SRC column with different durations,slenderness ratios or eccentricities,the equations of ultimate strength are derived by regression. |
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| Keywords: | steel reinforced concrete columns fire temperature distribution finite element |
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