| 基于内力的高层建筑顺风向等效静力荷载研究 |
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| 引用本文： | 汪大海,梁枢果.基于内力的高层建筑顺风向等效静力荷载研究[J].工程力学,2010(1). |
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| 作者姓名： | 汪大海 梁枢果 |
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| 作者单位： | 同济大学建筑工程系;武汉大学土木工程学院; |
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| 摘 要： | 该文应用振型加速度法求解高层建筑的顺风向风致随机内力响应,得到以恢复力表示的包含拟静力项和惯性力项的内力解。在此基础上提出了基于风致内力的等效静力荷载及简化分布公式。考察了目前国内外多种等效静力荷载方法的有效性,最后通过数值算例的比较说明该方法具有适用范围广、精度高、收敛快的特点。
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| 关 键 词： | 高层建筑 等效静力荷载 恢复力 振型加速度法 振型叠加法 |
ALONG-WIND EQUIVALENT STATIC LOAD OF HIGH-RISE BUILDINGS |
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| WANG Da-hai,LIANG Shu-guo.ALONG-WIND EQUIVALENT STATIC LOAD OF HIGH-RISE BUILDINGS[J].Engineering Mechanics,2010(1). |
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| Authors: | WANG Da-hai LIANG Shu-guo |
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| Affiliation: | 1.Department of Building Engineering;Tongji University;Shanghai 200092;China;2.Department of Civil Engineering;Wuhan University;Wuhan 430070;China |
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| Abstract: | The mode-acceleration method is applied to analyze the random internal force responses of buildings induced by along-wind.The frequency domain solution in terms of restoring forces consists of quasi-static item and inertia item.A new along-wind static equivalent load based on internal forces is deduced accordingly.Its precision and validity are investigated through a comparison with other equivalent static load methods.The proposed method has the advantages of convenient calculation,high precision,and wide ... |
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| Keywords: | high-rise buildings static equivalent load restoring force mode acceleration method mode superposition method |
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