[1]王 辉,汪楚清,薛建阳,等.特高压输电钢管塔双重非线性分析[J].西安建筑科技大学学报:自然科学版,2014,46(02):210-216.[doi:10.15986/j.1006-7930.2004.02.011]
　WANG Hui,WANG Chuqing,XUE Jianyang,et al.Bilinear analysis of steel tube tower in UHV transmission lines[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2014,46(02):210-216.[doi:10.15986/j.1006-7930.2004.02.011]
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特高压输电钢管塔双重非线性分析()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
46
期数:
2014年02期
页码:
210-216
栏目:
出版日期:
2014-04-30

文章信息/Info

Title:
Bilinear analysis of steel tube tower in UHV transmission lines
文章编号:
1006-7930(2014)02-0210-07
作者:
王 辉1; 2; 汪楚清3; 薛建阳1; 赵雪灵4
(1.西安建筑科技大学土木工程学院，陕西 西安710055；2.宁夏建设职业技术学院，宁夏 银川 750021；3.宁夏回族自治区
电力设计院，宁夏 银川，750001；4.中国电力顾问集团西北电力设计院，陕西 西安，710075)
Author(s):
WANG Hui1; 2 ; WANG Chuqing3 ; XUE Jianyang1 ; ZHAO Xueling4
(1.Department of Civil Engineering ,Xi’an Univ. of Arch. & Tech., Xi’an 710055,China2.China; 3. Ningxia Electric Power Design Institute750001, China; 4. Northwest Electric Power Design InstituteXi’an 710075, China)
关键词:
输电铁塔; 几何非线性; 材料非线性; 极限承载力; 次应力
Keywords:
steel tower;  geometric?nonlinearity;  material?nonlinearity;  finite element;  secondary stress
分类号:
TU392.3
DOI:
10.15986/j.1006-7930.2004.02.011
文献标志码:
A
摘要:
输电铁塔通常被简化成桁架结构并采用线弹性和小变形分析方法进行设计，而特高压输电铁塔结构柔度大、负载高、
杆件连接复杂，若仍按线弹性分析不能准确反映其真实的受力情况．采用有限元分析方法建立铁塔空间梁杆混合模型，单元
模型中考虑几何非线性和材料非线性的双重影响，并与在设计荷载下的真型塔试验对比验证了模型的正确性．分析结果表明，
按线弹性和小变形法设计的特高压输电铁塔安全裕度过大、浪费材料，应考虑几何非线性、材料非线性及端弯矩对结构受力
性能的影响．最后对铁塔主材的应力计算及次应力分布特点进行分析，为评估特高压输电塔的承载力提供参考设计建议．
Abstract:
towers are traditionally idealized for space truss whose members are assumed to be axially loaded and stress calculations are obtained from a linear elastic and small-displacement analysis. In practice, such conditions do not exist, especially for UHV transmission tower whose structure is flexible, high-loaded and connection is complex. A beam-line model based on finite element theory is built, with both?geometrical?nonlinearity?and?material?nonlinearity?considered?in?the model. The method has been calibrated with results from full-scale tower tests with good accuracy in terms of the design load. The results show that UHV transmission tower designed according to the current theory has large safety margin, and geometrical nonlinearity material?nonlinearity and bending moment should also be considered in analysis. So the, stress calculation method and secondary stress distribution of primary member is studied, and the method can be employed to assess the strength of UHV transmission tower and strengthen the existing towers

参考文献/References:

Reference
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备注/Memo

备注/Memo:
收稿日期：2013-10-12 修改稿日期：2014-04-09
基金项目：国家自然科学基金资助项目(11172226)；陕西省重点科技创新团队项目(2014KCT-31)
作者简介：王辉(1978-)，女，讲师，博士生．主要从事钢结构及组合结构方面的研究．E-mail：583962357@qq.com
更新日期/Last Update: 2015-10-10