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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

27卷

期数:

2010年02期

页码:

106-113

栏目:

出版日期:

2010-06-20

文章信息/Info

Title:

Axial Tensile Test and Finite Element Analysis on High-neck Flanges

作者:

薛伟辰¹,付凯¹,张克宝²,傅鹏程²

1. 同济大学 建筑工程系,上海 200092; 2. 华东电力设计院,上海 200063

Author(s):

XUE Wei-chen¹, FU Kai¹, ZHANG Ke-bao², FU Peng-cheng²

1. Department of Building Engineering, Tongji University, Shanghai 200092, China; 2. East China Electric Power Design Institute, Shanghai 200063, China

关键词:

钢管塔;  高颈法兰;  轴心受拉;  静力试验;  有限元分析

Keywords:

steel tube tower;  high-neck flange;  axial tensile;  static test;  finite element analysis

分类号:

TU317

DOI:

-

文献标志码:

A

摘要:

以练塘至泗泾500 kV送电线路钢管塔结构中采用的高颈法兰为试验对象,开展了4类不同尺寸的12个高颈法兰的足尺模型静力试验和有限元参数分析; 在试验和有限元参数分析结果的基础上,提出了相应的构造建议。结果表明:高颈法兰的极限承载力均能达到设计荷载的1.6倍以上,高颈法兰有较高的安全储备; 法兰板厚度和法兰颈高度对高颈法兰的承载能力影响较大,增大法兰板的厚度和法兰颈的高度能提高法兰的整体刚度,有利于减小法兰板与法兰颈的应力; 高颈法兰在试验过程中具有较高的承载能力,结构在破坏前均有明显的预兆,具有较高的安全储备,可在工程中推广应用。

Abstract:

The high-neck flanges used in steel tube structures which were from Liantang to Sijing 500 kV transmission line in the power transmission towers were taken as the test objects. The static load test and finite element parametric analysis of 12 full-scale models of high-neck flange which included 4 different sizes were carried out. Based on the test and finite element parametric analysis results, the corresponding construction proposals were put forward. The result shows that the ultimate carrying capacity of the high-neck flange is above 1.6 times of the design load and has an adequate safety reserve. The thickness of flange plate and the height of flange neck carry greater impact on the flange bearing capacity, the overall stiffness is increased by increasing the thickness of flange plate and the height of flange neck, which will reduce the stress of flange neck and flange plate. The high-neck flange during the test process has a higher carrying capacity and clear signs before damaging. The high-neck flange has high safety reserve, and can be widely applied in engineering.

参考文献/References:

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备注/Memo

备注/Memo:

收稿日期:2010-04-26
作者简介:薛伟辰(1970-),男,江苏扬州人,教授,博士研究生导师,工学博士,E-mail:xuewc@mail.tongji.edu.cn。

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更新日期/Last Update: 2010-06-20