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| 曹妃甸煤堆防风网架气弹模型风洞试验 | |
| 引用本文： | 鲜荣,詹水芬,李明水,宋进明.曹妃甸煤堆防风网架气弹模型风洞试验[J].建筑科学,2010,26(3). |
| 作者姓名： | 鲜荣 詹水芬 李明水 宋进明 |
| 作者单位： | 1. 西南交通大学风工程试验中心,成都,610031 2. 交通部天津水运工程科学研究院,天津,300456 3. 浙江东南网架股份有限公司,杭州,311209 |
| 摘 要： | 目前复杂网架结构风荷载通常采用刚性模型风洞试验确定,但由于忽略了结构与流体之间的耦合效应,其结果与实际结构存在偏差。气弹模型则可真实反映结构在自然边界层中的响应,但由于网架结构非常复杂,需要适当简化相似准则和选择结构主要响应振型进行设计。基于曹妃甸煤堆防风网架结构,设计1颐50气弹模型。通过应变片测试支架根部内力,得到了B类风场不同风速下网架内力风振系数;通过激光位移计测得顺风向位移响应,求得结构顺风向位移风振系数。最后比较分析了两类风振系数,为同类结构气弹模型设计制作和风振系数计算提供参考。 |
| 关 键 词： | 气弹模型 风洞试验 风荷载 风振系数 |
Wind Tunnel Test of Aeroelastic Model of Caofeidian Coal Heap Wind Prevention Steel Grid Structure |
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| XIAN Rong,ZHAN Shui-fen,LI Ming-shui,SONG Jin-ming.Wind Tunnel Test of Aeroelastic Model of Caofeidian Coal Heap Wind Prevention Steel Grid Structure[J].Building Science,2010,26(3). | |
| Authors: | XIAN Rong ZHAN Shui-fen LI Ming-shui SONG Jin-ming |
| Affiliation: | 1.Research Center of Wind Engineering/a>;Southwest Jiaotong University/a>;Chengdu 610031/a>;China/a>;2.Tianjin Research Institute for Water Transport Engineering/a>;Tianjin 300456/a>;3.Zhejiang Southeast Space Frame Co./a>;Ltd/a>;Hangzhou 311209/a>;China |
| Abstract: | Nowadays,the wind load of complex grid structure is usually confirmed by rigid model in wind tunnel test.But difference from prototype in the wind load exists because the coupling effect between structure and fluid is ignored.The aero elastic model can accurately describe response of structure in nature boundary layer.However,the aero elastic model has to be designed by properly simplifying similarity rules and selecting main response mode of vibration because the grid structure is very complex.This thesis ... |
| Keywords: | aero elastic model wind tunnel test wind load wind load coefficient |
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