| 引用本文: | 范峰,孙瑛,林斌,莫华美,武岳,洪汉平,孙晓颖.中、美、加、欧屋面雪荷载规范对比[J].哈尔滨工业大学学报,2011,43(12):18.DOI: |
| FAN Feng,SUN Ying,LIN Bin,MO Hua-mei,WU Yue,HONG Han-ping,SUN Xiao-ying.Comparison of snow load requirements in design codes used in China, USA, Canada and EU[J].Journal of Harbin Institute of Technology,2011,43(12):18.DOI: |
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| 摘要: |
| 陈述了我国规范与美国、加拿大和欧盟规范在雪荷载取值方面的差异．结果表明:我国规范的雪荷载计算公式过于简单,不能充分考虑各种相关因素对雪荷载的影响;我国规范规定的屋面雪荷载临界坡度在4本规范中最小;在双坡、拱形和高低屋面中,我国规范的雪荷载剖面与国外规范差异较大;最后给出对我国规范雪荷载取值规定的一些初步修改建议,为我国雪荷载规范的修订和完善提供思路和参考． |
| 关键词: 雪荷载 规范对比 修改建议 |
| DOI： |
| 分类号:TU312+.1 |
| 文献标识码:A |
| 基金项目:“十一五”国家科技支撑项目:“高性能建筑结构设计关键技术研究”(2006BAJ01B02). |
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| Comparison of snow load requirements in design codes used in China, USA, Canada and EU |
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FAN Feng1,MO Hua-mei1,HONG Han-ping2
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(1. School of Civil Engineering, Harbin Institute of Technology, 150090 Harbin,China,gordonmo@163.com;2. Department of Civil and Environmental Engineering, The University of Western Ontario, ON N6A 5B9 London, Canada)
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| Abstract: |
| This study compares the snow load provisions recommended in design codes used in China, USA, Canada and the EU. It shows that the basic snow load requirements in Chinese standard are too simplistic to cope with major factors that control the complex roof snow load patterns. The recommended critical roof slope in Chinese standard is the lowest among the considered four design codes. Furthermore, the recommended snow loads for the gable, arched and step roofs in Chinese standard differ from the other three design codes in terms of the snow load pattern. The comparison allowed us to suggest some preliminary modifications to snow load requirements in Chinese standard, although a detailed probability-based calibration is needed to confirm the recommended changes. |
| Key words: snow load provisions comparison modifications suggestions |
