胡琦，  王勇
（中冶赛迪上海工程技术有限公司，上海200940）

[摘要] 钢结构圆筒型储罐是一种典型的薄壁结构。随着储罐的日益大型化，其安全性越发重要。本文以某浮置于基础上的5000m³圆筒型钢储罐为例，通过有限元计算，分析了带肋球壳拱顶储罐在荷载作用下罐体的变形及应力情况，研究了罐壁开孔附近应力集中的情况，以及罐顶与罐壁连接部位在不同的连接构造下的应力特点。可为类似钢结构储罐的设计提供参考。
[关键词] 钢储罐；变壁厚储罐；固定顶储罐；带肋球壳拱顶；常温常压

Mechanics study of large vertical steel cylindrical storage tank
Hu Qi,  Wang Yong
(CISDl of Shanghi, Shanghai 200940)

Abstract: Steel cylindrical storage tank is a typical kind of shell structures. Now with tank's cubage increasingly, we should pay much more attention to the security of these structures; This study took a 5000m³ unanchored tank for instance, by finite element analysis, obtained the distributions of stress and displacement of the tank with arch nb roof under different load cases, studied stress concentrating near the holes, This study can supplied as a reference for other similar tanks design.
Keywords: steel storage tank; incontinuous thickness wall storage; fixed roof; tank with arch rib roof; normal temperature and pressure