| 基于能量法的悬臂金属拱型波纹屋面的剪力滞分析 |
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| 引用本文： | 于建军,刘朋,王连广.基于能量法的悬臂金属拱型波纹屋面的剪力滞分析[J].钢结构,2010,25(11):1-3,8. |
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| 作者姓名： | 于建军 刘朋 王连广 |
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| 作者单位： | 东北大学资源与土木工程学院,沈阳,110004 |
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| 基金项目： | 辽宁省教育厅科技攻关项目(20060708); 辽宁省自然科学基金资助项目(20052019) |
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| 摘 要： | 金属拱型波纹屋面是一种新型空间薄壁钢结构,在工程中常作为悬臂结构出现。由于波纹的存在对刚度和抗弯性能有较大的提高,研究其作为悬臂结构是一个新的探索。对单个波纹拱进行分析,应用变分法的最小势能原理对金属波纹拱悬臂结构的剪滞效应进行分析,建立悬挑结构的剪滞翘曲位移公式,给出剪力滞影响下的截面正应力和剪应力公式,并对悬臂结构形式进行算例分析。计算结果表明:剪滞附加正应力、剪应力在距固端0.07梁长处最大,与按初等梁理论计算应力值相比较,剪滞影响最大不超过4%。
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| 关 键 词： | 金属拱型波纹屋面 悬臂结构 能量法 变分法 剪力滞 |
SHEAR LAG ANALYSIS OF THE CANTILEVER ARCHED CORRUGATED METAL ROOF BASED ON ENERGY METHOD |
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| Yu Jianjun,Liu Peng,Wang Lianguang.SHEAR LAG ANALYSIS OF THE CANTILEVER ARCHED CORRUGATED METAL ROOF BASED ON ENERGY METHOD[J].Steel Construction,2010,25(11):1-3,8. |
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| Authors: | Yu Jianjun Liu Peng Wang Lianguang |
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| Affiliation: | Yu Jianjun Liu Peng Wang Lianguang (School of Resource & Civil Engineering,Northeastern University,Shenyang 110004,China) |
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| Abstract: | Arched corrugated metal roof is a new type of space thin-walled steel structure and commonly occurs as a cantilever structure in engineering.As the existence of the ripple,the stiffness and bending performance has greatly improved.The research as a cantilever structure is a new exploration.In this paper,a single corrugated arch is analysed.By the application of variations of the minimum potential energy principle,the shear lag effect of the corrugated metal arch cantilever structure is analysed.A cantilever... |
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| Keywords: | arched corrugated metal roof cantilever structure energy method variational method shear lag |
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