| 大型钢框架结构温度作用最不利布置研究 |
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| 引用本文： | 何沛【山仑】,;陈兆雄,;朱奕锋,;蔡建国. 大型钢框架结构温度作用最不利布置研究[J]. 钢结构, 2014, 0(5): 29-33 |
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| 作者姓名： | 何沛【山仑】, 陈兆雄, 朱奕锋, 蔡建国 |
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| 作者单位： | [1]中冶建筑研究总院有限公司,北京100088; [2]东南大学土木工程学院,南京210096 |
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| 摘 要： | 因太阳辐射引起结构升温的计算方法在我国规范中并无明确规定,温度作用的取值仍处于探索的阶段。为此提出温度作用最不利布置的概念,以解释整体升温的温度作用计算方法缺陷的原因。温度作用最不利布置与活荷载的最不利布置相似,有着本身的规律,采用整体温度升降的计算方法对结构的设计偏不安全。
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| 关 键 词： | 大型钢结构 温度效应 不均匀温度分布 温度作用最不利布置 |
RESEARCH ON THE UNFAVORABLE TEMPERATURE-EFFECT DISTRIBUTION OF LARGE SCALE STEEL FRAME STRUCTURES |
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| Affiliation: | He Peilun ,Chen Zhaoxiong, Zhu Yifeng, Cai Jianguo (1. Central Research Institute of Building Construction Co. Ltd, Beijing 100088, China 2. School of Civil Engineering Southeast University, Nanjing 210096, China) |
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| Abstract: | For large-scale steel structure, the influence of temperature effect is significant. There is not explicitly stated in the design codes about the design method of temperature caused by solar radiation, and the temperature values elected is still at the exploratory stage. The concept of unfavorable temperature-effect distributions is brought forward to explain the defect of the calculation method of temperature effect. Similar to unfavorable live-load distributions, unfavorable temperature-effect distributions has its regular pattern; and the internal forces of the member bars in design are determined by the pattern of unfavorable temperature-effect distributions. |
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| Keywords: | large-scale steel structure temperature effect uneven temperature distribution unfavorable temperature-effect distributions |
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