全容式LNG储罐混凝土外罐的预应力方案计算
Prestress Calculation for Concrete Outer Tank of Full-containment LNG Storage Tank
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- DOI:
- 作者:
- 郑建华, 李金光, 程艳芬, 武海坤
ZHENG Jian-hua, LI Jin-guang, ZHENG Yan-feng
- 作者单位:
- 中国寰球工程公司, 北京 100029
China Huanqiu Contracting & Engineering Co., Beijing 100029
- 关键词:
- 全容式LNG储罐;混凝土外罐;预应力;设计
full-containment LNG storage tank;concrete outer tank;prestress;design
- 摘要:
- 为确保全容式LNG储罐混凝土外罐的造价经济、受力合理，有必要对混凝土外罐施加预应力。从工程设计的角度出发，以全容式LNG储罐混凝土外罐的受力特性为基础，对混凝土外罐预应力方案的计算要点进行了较全面的分析和总结，提出了简单易行的计算解决方案，并以16万m3LNG储罐为例，给出了详细的计算过程，实践证明提出的计算方案是正确的。
It is necessary to impose prestress to the concrete outer tank of a full-containment LNG storage tank in order to ensure the tank safety and low cost. From the viewpoint of engineering design and based on the property of the outer tank of a full-containment LNG storage tank under major loads, the key points of calculating prestress of the concrete outer tank are fully analyzed and summarized. Simple and easy methods of calculating prestress of the concrete outer tank are presented. And taking a full-containment LNG storage tank with volume of 160 000 m3 as an example, the details of calculating prestress are illustrated.2012,6(6): 49-52 收稿日期：2011-12-26作者简介：郑建华（1966-），男，湖北长阳人，教授级高级工程师，1989 年毕业于重庆建筑工程学院结构工程专业，硕士，现主要从事LNG储罐的设计工作。参考文献：
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[2] EN 14620-3-2006, Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0℃ and-165℃-Party3: Concrete components[S].
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