EPR核电站常规岛主厂房风洞试验与风致响应研究

周向阳;;张略秋;周雷靖;梁枢果;邹垚

振动与冲击 ›› 2011, Vol. 30 ›› Issue (11) : 142-147.

PDF(3966 KB)
PDF(3966 KB)
振动与冲击 ›› 2011, Vol. 30 ›› Issue (11) : 142-147.
论文

EPR核电站常规岛主厂房风洞试验与风致响应研究

  • 周向阳1,2 ; 张略秋1 ; 周雷靖1; 梁枢果3; 邹垚 3
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Wind tunnel test and wind-induced dynamic response research on main powerhouse structure of nuclear power plant for EPR

  • Zhou Xiang-yang 1,2 ; Zhang Lue-qiu 1; Zhou Lei-jing 1; Liang Shu-guo 3 ; Zou Yao 3
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摘要

为了研究第三代EPR(European Pressurised Reactor)核电站常规岛主厂房的表面风荷载与风振响应,以台山核电站常规岛主厂房为试验原型,设计制作了刚性测压模型。在考虑核岛及其邻近建筑物干扰的情况下,进行了多个风向角、多种地貌下的刚性测压风洞试验。根据试验结果,首先分析得到了主厂房在各个风向角下的体型系数和极值风压。然后在有限元模型的基础上,由随机振动理论,在频域内计算出主厂房结构的风振响应。最后根据风致响应计算结果结合最优化理论,给出了主厂房结构的等效静力风荷载和风振系数的合理取值。研究结果可以为第三代核电常规岛主厂房结构抗风设计与评估提供依据。

Abstract

Rigid models were designed based on Taishan nuclear power plant to investigate wind pressure distribution and wind-induced dynamic response of main powerhouse structure of conventional island in a third generation nuclear power plant. Fluctuating wind pressure was tested under the turbulent flow in a boundary layer wind tunnel considering the interference effects of neighboring nuclear island and adjacent structure. The characteristics of mean, fluctuating and peak pressure coefficients on the structure were analyzed. A calculation procedure was developed for evaluating the wind-induced dynamic response by using frequency-domain method. The equivalent static wind loads and wind load factor were obtained based on optimization theory and the critical wind angles were determined. The calculation and analysis above can supply a reliable guide for safety evaluation of wind resistance.

关键词

核电站主厂房 / 风洞试验 / 体型系数 / 风致响应 / 风振系数

Key words

main powerhouse structure of nuclear power plant / wind tunnel test / mean pressure coefficient / wind-induced dynamic response / wind load vibration coefficient

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周向阳;;张略秋;周雷靖;梁枢果;邹垚 . EPR核电站常规岛主厂房风洞试验与风致响应研究[J]. 振动与冲击, 2011, 30(11): 142-147
Zhou Xiang-yang;;Zhang Lue-qiu;Zhou Lei-jing;Liang Shu-guo ;Zou Yao . Wind tunnel test and wind-induced dynamic response research on main powerhouse structure of nuclear power plant for EPR[J]. Journal of Vibration and Shock, 2011, 30(11): 142-147

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