摘要
抗风圈对增强储罐的抗风能力具有重要意义,而现有大型储罐设计规范中顶部抗风圈尺寸设计方法过于保守。对比GB 50341和API 650规范中的顶部抗风圈设计方法,分析现有设计方法保守的原因,并建立实际尺寸储罐有限元模型,开展风致屈曲分析,研究抗风圈的抗风特性,结果表明,比实际设计尺寸更小的抗风圈完全可以满足抗风设计要求。对GB 50341顶部抗风圈尺寸设计公式进行了优化,可为大型储罐抗风圈设计提供参考。
Wind girder is of great significance to enhance the wind resistance ability of storage tanks.However,the design method of the wind girder on the top of large storage tanks in the existing design code is too conservative.Comparing the wind girder design method in code GB 50341 and API 650,in this paper,the conservative reasons of the existing design methods are analyzed,then the finite element model of the actual size storage tank is established,the wind-induced buckling analysis is carried out,and the wind resistance characteristics of the wind girder are studied.The results show that the wind girder with smaller size than the actual design can fully meet the requirements of wind resistance design.The design formula of GB 50341 top wind girder size is optimized,which can provide a reference for the wind girder design of large storage tanks.
作者
倪恒
陈严飞
马尚
董绍华
NI Heng;CHEN Yanfei;MA Shang;DONG Shaohua(China University of Petroleum(Beijing)·National Engineering Laboratory for Oil and Gas Pipeline Safety·Key Laboratory of Urban Oil and Gas Transmission and Distribution Technology;Dalian University of Technology·State Key Laboratory of Structural Analysis of Industrial Equipment)
出处
《油气田地面工程》
2022年第2期52-57,共6页
Oil-Gas Field Surface Engineering
基金
国家重点研发计划(2017YFC0805800)
国家自然科学基金(51779265)
大连理工大学工业装备结构分析国家重点实验室开放基金(GZ19119)。
关键词
大型储罐
顶部抗风圈
截面模量
有限元模型
屈曲分析
large storage tank
top wind girder
cross section modulus
finite element model
buckling analysis
