龙卷风作用及核电站结构极端风荷载相关问题研究综述

发布时间：2018-06-28 13:58

本文选题：龙卷风荷载 + 风致飞射物　；参考：《土木建筑与环境工程》2016年06期

【摘要】：在结构荷载规范中一般均不考虑龙卷风荷载,但对于某些设防要求极高的重要工程设施,如核电站,则需要考虑可能的龙卷风荷载作用。从龙卷风风场理论模型的研究发展入手,对直接风压荷载的确定、风致飞射物间接作用以及特种工程结构核电站抗龙卷风设计的研究现状进行了归纳总结,指出了龙卷风直接风压计算中考虑轴吸力作用、风场平移运动及风致扭转作用的必要性以及飞射物冲击作用应区别弹体相对刚度及端部形态对作用效果的影响。
[Abstract]:The tornado load is not generally considered in the structural load code, but for some important engineering facilities, such as nuclear power plant, the possible tornado load should be considered. Starting with the research and development of tornado wind field theory model, this paper summarizes the research status of direct wind pressure load determination, indirect action of wind-induced ejector and tornado resistance design of nuclear power plant with special engineering structure. It is pointed out that the axial suction action is considered in the calculation of direct wind pressure of tornado, the necessity of wind field translation and wind torsion and the impact of flying projectile should be distinguished from the influence of the relative stiffness of projectile and the shape of the end of the projectile on the effect of the action.
【作者单位】：同济大学土木工程防灾国家重点实验室;
【基金】：科技部国家重点实验室基金(SLDRCE15-B-06) 国家自然科学基金(91315301-4)~~
【分类号】：TU312.1

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