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首页> 外文会议>2007采矿科学与安全技术国际学术会议 >Study on Across-Wind Vibration of Large Span Cable-Stayed Truss of Transportation Belt Gallery
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Study on Across-Wind Vibration of Large Span Cable-Stayed Truss of Transportation Belt Gallery

机译：交通带廊道大跨度斜拉桁架横风振动研究

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The cable-stayed truss of transportation belt gallery is characterized by long-span and small volume and weight. Cracks or fatigue of the bar is likely to appear, and oversize amplitude will affect the smooth running of the belt conveyer, even belt be off hub under the across-wind vortex-induced resonance and galloping, so designers are interested in the structural dynamic behavior under wind load. There is a lack of behavior parameters about wind vibration of large span cable-stayed light truss in the existing design specification. Thus, it is necessary to analyze the wind-vibration behavior of this structure. The largest span part in the charging belt gallery is chosen as analyzed object. The across-wind vortex-induced resonance and galloping of the long-span truss beam are analyzed and calculated using ANSYS program. Critical wind speed of every response is obtained. Relevant measures to improve the wind-resistant behavior of truss are adopted. The results can provide powerful theoretical evidence for this project and similar project design.
机译：交通带廊的斜拉桁架的特点是长跨度和体积小。杆的裂缝或疲劳可能出现，并且超大振幅会影响皮带输送机的平稳运行，即使皮带在跨风涡旋引起的共振和疾驰下的枢纽，所以设计师对结构动态行为感兴趣在风负荷下。现有设计规范中大跨度斜拉灯桁架风振动缺乏行为参数。因此，有必要分析这种结构的风力振动行为。选择充电带廊中的最大跨度部分作为分析的物体。通过ANSYS程序分析和计算了跨风涡旋引起的长跨度桁架光束的共振和疾驰。获得每个响应的临界风速。采用了提高桁架防风行为的相关措施。结果可以为该项目提供强大的理论证据和类似的项目设计。

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