| 钢-混凝土组合梁长期变形的计算与分析 |
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| 引用本文： | 聂建国.钢-混凝土组合梁长期变形的计算与分析[J].建筑结构,1997(1). |
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| 作者姓名： | 聂建国 |
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| 作者单位： | 清华大学土木系 北京100084 |
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| 摘 要： | 对钢-混凝土组合梁的长期变形问题进行了分析和讨论,指出我国现行《钢结构设计规范》关于组合梁长期变形的计算值偏小,并建立了组合梁的长期刚度计算公式,反映了混凝士徐变系数大小的影响,同时还考虑了混凝土收缩对变形的影响.公式意义明确,形式简单,应用方便.
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| 关 键 词： | 钢-混凝土 组合梁 长期变形 徐变 收缩 |
Prediction and Analysis for Long-term Deformation of Composite Beams of Steel and Concrete |
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| Nie Jianguo.Prediction and Analysis for Long-term Deformation of Composite Beams of Steel and Concrete[J].Building Structure,1997(1). |
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| Authors: | Nie Jianguo |
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| Affiliation: | Nie Jianguo |
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| Abstract: | Based upon the discussion and analysis for long- term deformation of composite beams of steel and con crete, it is found that the long - term deformation is under - evaluated by the current code "Design of Steel Structures"used in China. The formulae of long - term rigidity is derived for composite beams under sustained load, in which the effect of creep and shrinkage of concrete is taken into account. The formulae in the paper, with clear physical concept, are simple and easy to be used in practice. |
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| Keywords: | composite beam long-term rigidity shrinkage creep concrete |
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