期刊文献+

核电常规岛围护结构在龙卷风作用下破坏过程的研究 被引量:1

Study on tornado-induced destruction progress of envelope of conventional island in nuclear power plant
下载PDF
导出
摘要 为研究龙卷风荷载作用下核电站常规岛主厂房围护结构的连续破坏情况,首先利用流体计算软件Fluent,获得了常规岛主厂房在龙卷风作用下的风荷载参数。对主厂房位于龙卷风核心半径处时围护结构的连续破坏情况进行了分析。研究表明:在龙卷风作用下,三种不同径向位置计算模型的屋面风荷载均为吸力。当常规岛主厂房位于核心半径时,屋面吸力最大,最先发生掀翻破坏,然后迎风面、背风面和靠近龙卷风中心侧面由于内外压联合作用依次连续破坏。其中迎风面破坏面积比率最大,达到22.2%,远离龙卷风中心侧面未发生破坏。 In order to study the continuous damage of the building envelope of main powerhouse of conventional island in nuclear power plant under the effect of tornado load, the fluid calculation software Fluent was firstly used to obtain the wind loading parameters of the main powerhouse of conventional island under tornado effect. Then, the continuous destruction of the envelope was analyzed when the main powerhouse was located at the core radius of the tornado. The research shows that the roof wind loads of calculation models at three different radial position are all suction under the action of tornado. When the main powerhouse of conventional island is located at the core radius, the roof suction is maximum and is the first damaged by overturning behavior, and then windward side, leeward side and the side close to the tornado center were successively destroyed due to the joint action of internal and external pressure. Among them, the ratio of destruction area of the windward is the largest, reaching 22. 2%, and no damage occurred on the side away from the tornado center.
作者 吴熙 吕令毅 Wu Xi, Lu Lingyi(School of Civil Engineering, Southeast University, Nanjing 210096)
出处 《工程建设》 2018年第3期19-26,共8页 Engineering Construction
关键词 核电站 龙卷风场 连续破坏 风荷载 nuclear power plant tornado field continuous destruction wind load
  • 相关文献

参考文献5

二级参考文献33

  • 1张耀春,秦云,王春刚.洞口设置对高层建筑静力风荷载的影响研究[J].建筑结构学报,2004,25(4):112-117. 被引量:29
  • 2陈艾荣,刘志文,周志勇.大跨径斜拉桥在龙卷风作用下的响应分析[J].同济大学学报(自然科学版),2005,33(5):569-574. 被引量:13
  • 3魏文秀,赵亚民.中国龙卷风的若干特征[J].气象,1995,21(5):36-40. 被引量:94
  • 4KIKITSU Hitomitsu, OKADA Hisashi. Open passage design of tall buildings for reducing aerodynamics response[A].Wind Engineering into the 21st Century[C]. Larose, Larose & Livesey Press, 1999:667 - 672.
  • 5LETCHFORD C W. Wind loads on rectangular signboards and hoardings[J]. Journal of wind Engineering and Industrial Aerodynamics. 2001, 89:135 - 151.
  • 6ROBERTSON A P, HOXEY R P, RICHARDS P J. Design code, full-scale and numerical data for wind loads on freestanding walls[J]. Journal of wind Engineering and Industrial Aerodynamics. 1995, 57:203 - 214.
  • 7AHLBORN Boye, SETO Mae L, NOACK Bernd R. On drag, Strouhal number and vortex-street structure[J]. Fluid Dynamics Research, 2002,30: 379 - 399.
  • 8Sun C N, Burdette E G, Barnett R O. Theoretical tor- nado vortex model for nuclear plant design[J]. Nucle- ar Engineering and Design, 1977, 44(3 ) : 407 - 411.
  • 9Haan J F L, Sarkar P P, Gallus W A. Design, con- struction and performance of a large tornado simulator for wind engineering applications[J]. Engineering Structures, 2008, 30(4) 1146 - 1159.
  • 10Mishra A R, James D L, Letchford C W. Physical sim- ulation of a single-celled tornado-like vortex. Part A: flow field characterization[J]. Journal of Wind Engi- neering and Industrial Aerodynamics, 2008, 96 (8/9) : 1243 - 1257.

共引文献48

同被引文献6

引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部