| 应用求积元法进行平面钢框架火灾分析 |
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| 引用本文： | 余红霞.应用求积元法进行平面钢框架火灾分析[J].工程力学,2013,30(6):191-196. |
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| 作者姓名： | 余红霞 |
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| 作者单位： | 清华大学土木工程系，北京100084 |
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| 基金项目： | 国家自然科学基金青年基金项目(51008171) |
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| 摘 要： | 该文针对平面钢框架高温下结构性能的分析问题，采用求积元法发展了钢框架高温结构性能分析的理论并编写了平面框架结构的火灾高温响应的分析程序。求积元法适用于高效的非线性分析，且有建模简单的特点，对每个杆件仅采用一个单元即可。经与有限元分析程序ABAQUS对比表明，采用求积元法用较少的自由度数即可达到非常高的分析精度要求，因此比传统的有限元法更适用于结构火灾分析。
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| 关 键 词： | 求积元法 平面钢框架 抗火分析 高温效应 有限元 |
| 收稿时间： | 2013-06-27 |
| 修稿时间： | 2013-06-27 |
APPLICATION OF QUADRATURE ELEMENT METHOD TO FIRE ANALYSIS OF PLANAR STEEL FRAMES |
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| YU Hong-xia.APPLICATION OF QUADRATURE ELEMENT METHOD TO FIRE ANALYSIS OF PLANAR STEEL FRAMES[J].Engineering Mechanics,2013,30(6):191-196. |
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| Authors: | YU Hong-xia |
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| Affiliation: | Department of Civil Engineering,Tsinghua University,Beijing 100084,China |
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| Abstract: | The quadrature element method (QEM) is developed for its application in the fire analysis of steel frames in fire and the program for the analysis of planar steel frames is also written.The comparison with general finite element program ABAQUS shows that the results of the QEM method can reach very high analysis accuracy with significantly less degree-of-freedom,and the method is more appropriate to be adopted in structural fire analyses. |
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| Keywords: | quadrature element method planar steel frame fire analysis elevated temperature finite element method |
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