[1]刘俊卿,鲁楠,段辉顺,等.双呼高输电塔的风振响应及风振系数研究[J].西安建筑科技大学学报(自然科学版),2020,52(01):9-14，29.[doi:10.15986j.1006-7930.2020.01.002]
　LIU Junqing,LU Nan,DUAN Huishun,et al.Wind vibration response analysis and wind vibration coefficient determination of double-nominal transmission tower[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2020,52(01):9-14，29.[doi:10.15986j.1006-7930.2020.01.002]
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双呼高输电塔的风振响应及风振系数研究()
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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:
52
期数:
2020年01期
页码:
9-14，29
栏目:
出版日期:
2020-03-31

文章信息/Info

Title:
Wind vibration response analysis and wind vibration coefficient determination of double-nominal transmission tower
文章编号:
1006-7930(2020)01-0009-06
作者:
刘俊卿1; 鲁楠1; 段辉顺2; 刘生奎2; 张玲玲3
(1.西安建筑科技大学 理学院,陕西 西安 710055; 2.中国能源建设集团甘肃省电力设计院有限公司,甘肃 兰州 730050; 3.西安交通大学 土木工程系,陕西 西安 710049)
Author(s):
LIU Junqing1; LU Nan1; DUAN Huishun2; LIU Shengkui2; ZHANG Lingling3
(1. School of Science, Xi’an Univ. of Arch. & Tech., Xi’an 710055,China; 2.China Energy Engineering Group Gansu Electric Power Design Institute Co. Ltd., Lanzhou 730050, China; 3. Department of Civil Engineering,Xi’an Jiaotong University, Xi’an 710049, China; )
关键词:
双呼高多横担门型塔;  AR法;  脉动风;  风振响应;  风振系数
Keywords:
double-nominal height multi-crossarm transmission tower;  AR method;  fluctuating wind;  wind-induced response;  wind-induced vibration coefficient.
分类号:
O39
DOI:
10.15986j.1006-7930.2020.01.002
文献标志码:
A
摘要:
330 kV双呼高多横担塔既满足对低电压等级线路或高速、铁路等的跨越,又满足对高电压等级线路钻越.目前未有针对此类塔型的研究,故本文主要建立了双呼高多横担塔的ANSYS有限元分析模型,对其进行模态分析,得出该塔型的前几阶阵型,结果表明:此类型塔易出现横向振动和塔身绕其高度方向出现扭转的现象; 根据随机振动理论,选用Davenport风速谱为脉动风功率自谱,并运用AR法通过软件MATLAB编制程序模拟脉动风,模拟得到的风速功率谱密度曲线与目标风速功率谱密度吻合很好; 模拟顺风向大风工况,对塔进行非线性动力时程分析,将多种结果进行比较提出此塔形的改善意见; 计算双呼高多横担门型塔的风振系数,与规范结果进行比较,为输电塔的设计提供有益的参考.
Abstract:
The 330 kV double-call high multi-span tower satisfies not only the crossing of low-voltage grade lines or high-speed and railway lines, but also the crossing of high-voltage grade lines. At present, there is no research on this type of tower, so this paper mainly establishes ANSYS finite element analysis model of double-hull multi-span tower, carries out a modal analysis and obtains the first several order array of this type of tower. Results show that this type of tower is prone to transverse vibration and torsion around its height direction. According to random vibration theory, Davenport wind speed spectrum is selected as fluctuating wind power Auto-spectrum, and AR method is used to simulate pulsating wind by software MATLAB. Results show that the power spectral density curve of simulated wind speed is in agreement with the target wind speed power spectral density. The non-linear dynamic time-history analysis of the tower is carried out to simulate the downwind gale conditions, and a variety of results are compared to propose the modification of the tower shape. The wind vibration coefficients of the double-hung multi-crossbar portal tower are calculated. Compared with the results of the code, it provides a useful reference for the design of the iron tower.

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备注/Memo

备注/Memo:
收稿日期:2019-09-17修改稿日期:2020-01-13基金项目:中国能源建设集团甘肃省电力设计院有限公司资助项目(2017KJ-XL-01)第一作者:刘俊卿(1957-),男,博士,教授,博士生导师,主要研究工程力学、建筑结构等.E-mail: ljq5612@163.com通讯作者:鲁楠(1996-),女,硕士研究生,主要研究工程力学、钢结构等.E-mail: 747606795@qq.com
更新日期/Last Update: 2020-04-25