[1]胡良明,李宗坤,王宗敏,等.小浪底2号进水塔工作门段预应力分析[J].郑州大学学报(工学版),2002,23(02):89-91.[doi:10.3969/j.issn.1671-6833.2002.02.026]
　HU Liangming,Li Zongkun,WANG Zongmin,et al.Prestress analysis of working door section of Xiaolangdi No. 2 inlet tower[J].Journal of Zhengzhou University (Engineering Science),2002,23(02):89-91.[doi:10.3969/j.issn.1671-6833.2002.02.026]

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小浪底2号进水塔工作门段预应力分析()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

23

期数:

2002年02期

页码:

89-91

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Prestress analysis of working door section of Xiaolangdi No. 2 inlet tower

作者:

胡良明; 李宗坤; 王宗敏; 等.

郑州大学环境与水利学院,河南,郑州,450002, 商丘市水利局,河南,商丘,476000

Author(s):

HU Liangming; Li Zongkun; WANG Zongmin; etc

关键词:

进水塔;  工作门;  预应力

Keywords:

water intake towers;  Work doors;  Prestress

DOI:

10.3969/j.issn.1671-6833.2002.02.026

文献标志码:

A

摘要:

利用8～21节点块体单元离散了小浪底2号进水塔,针对工作门段4种不同方案进行了应力分析.计算表明,预应力方案Ⅰ到方案Ⅲ降低拉应力的程度在5%和10%之间,其降低拉应力程度最大的方案Ⅱ达到9.2%,方案Ⅱ是最优的预应力锚束布置方案.但就预应力方案来讲,拉应力的降低程度不大,采用预应力工程措施降低工作门段侧墙区域拉应力的效果不明显,不适用于大型箱型进水塔结构,建议设计单位采取其它的工程措施来解决侧墙大区域双向受拉应力问题.

Abstract:

The No. 8 inlet tower of Xiaolangdi was discretely dispersed by using the 21~2 node block unit, and the stress analysis was carried out for four different schemes of the working gate section. The calculation shows that the degree of reduction of tensile stress from scheme I to scheme III is between 4% and 5%, and the scheme II. with the largest degree of tensile stress reduction reaches 10.9%, and scheme II is the optimal prestressed anchor bundle arrangement scheme. However, as far as the prestressing scheme is concerned, the degree of tensile stress reduction is not large, and the effect of using prestressing engineering measures to reduce the tensile stress in the side wall area of the working door section is not obvious, and it is not suitable for the structure of large box-type water intake tower, and it is recommended that the design unit take other engineering measures to solve the problem of two-way tensile stress in the large area of the side wall.

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