| 风荷载下单层柱面网壳的动力稳定 |
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| 引用本文： | 黄友钦,顾明.风荷载下单层柱面网壳的动力稳定[J].振动与冲击,2011,30(2):39-43. |
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| 作者姓名： | 黄友钦 顾明 |
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| 作者单位： | 同济大学土木工程防灾国家重点实验室，上海200092 |
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| 基金项目： | 国家科技支撑计划资助项目，科技部国家重点实验室基础研究资助项目 |
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| 摘 要： | 以一单层柱面网壳为例，利用Budiansky-Roth准则研究空间结构在风荷载下的动力稳定性。介绍了Budiansky-Roth准则，通过风洞试验获得单层柱面网壳上的风荷载并研究其动力稳定性，讨论了初始几何缺陷、风向角和风压系数的影响，并将动力失稳分析结果与我国规范和阵风响应因子法（GRF法）计算动力响应导致结构破坏的方法作了比较。研究结果表明，空间结构进行风荷载下的稳定性设计时有必要研究其在风荷载下的动力稳定性。
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| 关 键 词： | 空间结构 动力稳定性 单层柱面网壳 风洞试验 B-R准则 |
| 收稿时间： | 2010-4-2 |
| 修稿时间： | 2010-6-7 |
Dynamic instability of a single-layer cylindrical reticulated shell under wind loads |
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| HUANG You-qin,GU Ming.Dynamic instability of a single-layer cylindrical reticulated shell under wind loads[J].Journal of Vibration and Shock,2011,30(2):39-43. |
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| Authors: | HUANG You-qin GU Ming |
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| Affiliation: | State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | A single-layer cylindrical reticulated shell was taken as an example to study the dynamic instability of spatial structures with Budiansky-Roth criterion.Budiansky-Roth criterion was explained,and the wind tunnel test of the single-layer cylindrical reticulated shell was conducted to obtain fluctuating wind loads on it.Then,its dynamic instability under fluctuating wind loads was studied,the influences of initial geometrical imperfections,wind direction anagles and wind pressure coefficients were discussed,... |
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| Keywords: | spatial structures dynamic instability single-layer cylindrical reticulated shells wind tunnel test Budiansky-Roth(B-R) criterion |
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