| 局部开口对封闭柱面网壳风荷载影响 |
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| 引用本文： | 马文勇,李晓娜,刘庆宽,齐澎波.局部开口对封闭柱面网壳风荷载影响[J].振动与冲击,2014,33(3):14-17. |
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| 作者姓名： | 马文勇 李晓娜 刘庆宽 齐澎波 |
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| 作者单位： | 1.石家庄铁道大学风工程研究中心，河北石家庄，050043； 2.海军工程设计研究院，北京，100070 |
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| 基金项目： | 国家自然科学基金青年项目(51108280);河北省科技支撑计划项目(09215626D) |
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| 摘 要： | 局部开口对封闭大跨度空间结构风荷载影响很大,通过刚性模型测压风洞试验对底部和顶部有局部开口的两端封闭三心圆柱面网壳结构的风荷载分布进行了研究,对比不同开口状况下结构的力系数及风荷载分布,给出了局部开口对风荷载及其分布的影响规律,如强负压区的局部开口能有效的减小结构表面的风吸力,而正压区域的局部开口会增大结构表面的风吸力,这些规律为类似结构的抗风设计及防风措施提供了合理的建议。
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| 关 键 词： | 封闭圆柱面网壳 局部开口 风洞试验 风荷载分布 防风措施 |
| 收稿时间： | 2012-8-13 |
| 修稿时间： | 2013-3-23 |
The Effects of Local Openings on Wind Loads on Enclosed Cylindrical Latticed Shell |
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| MA Wenyong LI Xiaona LIU Qingkuan QI Pengbo.The Effects of Local Openings on Wind Loads on Enclosed Cylindrical Latticed Shell[J].Journal of Vibration and Shock,2014,33(3):14-17. |
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| Authors: | MA Wenyong LI Xiaona LIU Qingkuan QI Pengbo |
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| Affiliation: | 1. Wind Engineering Research Center, Shijiazhuang Tiedao University, Hebei Shijiazhuang, 050043; 2. Navy Design & Research Institute, Beijing, 100070 |
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| Abstract: | The effects of local openings on wind loads on enclosed large span spatial structures were considered. Wind loads distribution on enclosed three-center cylindrical latticed shell with local openings is studied via rigid model wind pressure test in wind tunnel, Compare with wind force coefficients and wind loads distribution on structures in different local openings cases, the variation of wind loads distribution with local openings is cleared，such as the suction on structure surface was proved to decrease with the openings in strong negative wind pressure region whereas increase with the openings in positive wind pressure region, and provide suggestion for wind-resistant design and wind-resistant measurements development. |
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| Keywords: | enclosed cylindrical latticed shelllocal openingswind tunnel testwind loads distributionwind-resistant measurements |
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