大型钢储罐的沉降与结构性能的关系

赵阳; 曹庆帅; 谢新宇

doi:10.13204/j.gyjz200704018

大型钢储罐的沉降与结构性能的关系

doi: 10.13204/j.gyjz200704018

1.
浙江大学建筑工程学院,杭州 310027

基金项目:

国家自然科学基金资助项目(50208017);教育部留学回国人员科研启动基金资助项目(J20040157)

详细信息

作者简介:
赵阳男 1970年9月出生教授E-mail:ceyzhao@zju.edu.cn

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- 被引次数: 0
出版历程
- 收稿日期: 2006-11-25
- 刊出日期: 2007-04-20

SETTLEMENT AND STRUCTURAL BEHAVIOR OF LARGE STEEL STORAGE TANKS

1.
College of Civil Engineering and Architecture,Zhejiang University Hangzhou 310027

摘要

摘要: 建造在软土地基上的大型钢储罐易产生各种沉降变形, 其中罐周不均匀沉降的影响最为不利。在各类大型储罐沉降变形的大量实测数据基础上, 利用傅立叶分解分析罐周不均匀沉降的组成及特点, 利用分析得到的谐波沉降对储罐结构进行有限元分析。分析表明, 储罐在不均匀沉降下的应力和变形均与其几何参数有关, 因此目前基于工程经验且与储罐参数无关的地基变形允许值控制标准, 从结构的角度看不尽合理。
- 钢储罐 /
- 不均匀沉降 /
- 实测沉降 /
- 应力分析 /
- 地基变形允许值
Abstract: Large steel storage tanks constructed in soft foundations are susceptible to various types of settlement deflections, and the differential settlement beneath the tank wall leads to the most serious consequence for the tank. Based on a great deal of measured data for the settlements of various types of in site large tanks, the composition and characteristics of the differential settlement beneath the tank wall are analyzed using Fourier decomposition. The derived harmonic settlements are then introduced in finite element analyses of the tank structure. It has been shown that the stresses and deformations in the tank under differential settlements are dependent on its geometric parameters. Thus current empirical criteria for allowable deformation of foundation that is independent of geometric parameters seems unreasonable viewed from the structural perspective.
- steel storage tanks /
- differential settlement /
- measured settlement /
- stress analysis /
- allowable deformation of foundation

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参考文献(6)

[2] D'Orazio T B,Duncan J M.Differential Settlements in Steel Tanks.Journal of Geotechnical Engineering,ASCE,1987,113(9):967-983

陈凌志,赵阳.不均匀沉降下的大型钢储罐结构.空间结构,2003,9(3):50-54

[3] 贾庆山.大型油罐基础工程事故分析及变形允许值.岩土工程师,2001,13(1):29-33

[4] SH 3068-95 石油化工企业钢储罐地基与基础设计规范

[5] Palmer S C.Stresses in Storage Tanks Caused by Differential Settlement.Proceedings of the Institute of Mechanical Engineerings,Part E,Journal of Process Mechanical Engineering,1994,208(E1):5-16

[6] Jonaidi M,Ansourian P.Harmonic Settlement Effects on Uniform and Tapered Tank Shells.Thin-Walled Structures,1998,31:237-255

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