|本期目录/Table of Contents|

[1]高正平,黄士君,黄凤华,等.超高大跨越输电铁塔高空构件吊装施工安全风速[J].南京工业大学学报(自然科学版),2019,41(02):206-211.[doi:10.3969/j.issn.1671-7627.2019.02.012]
 GAO Zhengping,HUANG Shijun,HUANG Fenghua,et al.Safe wind speed for hoisting components and cross-arm of the large span transmission tower[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2019,41(02):206-211.[doi:10.3969/j.issn.1671-7627.2019.02.012]
点击复制

超高大跨越输电铁塔高空构件吊装施工安全风速()
分享到:

《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
41
期数:
2019年02期
页码:
206-211
栏目:
出版日期:
2019-03-19

文章信息/Info

Title:
Safe wind speed for hoisting components and cross-arm of the large span transmission tower
文章编号:
1671-7627(2019)02-0206-06
作者:
高正平1黄士君1黄凤华2张冰2刘海1张大长23
1.国网江苏省电力公司,江苏 南京 210000; 2.南京工业大学 土木工程学院,江苏 南京 211800; 3.河海大学 土木与交通学院,江苏 南京 210098
Author(s):
GAO Zhengping1HUANG Shijun1HUANG Fenghua2ZHANG Bing2LIU Hai1ZHANG Dachang23
1.State Grid Jiangsu Electronic Power Company,Nanjing 210000,China; 2.College of Civil Engineering,Nanjing Tech University, Nanjing 211800,China; 3.College of Civil and Transportation Engineering,Hohai University,Nanjing 210098,China
关键词:
大跨越输电塔 江中风速 构件吊装 安全风速
Keywords:
large span transmission tower wind speed in river components crane safe value of wind velocity
分类号:
TU391
DOI:
10.3969/j.issn.1671-7627.2019.02.012
文献标志码:
A
摘要:
高位构件及横担的吊装施工是超高大跨越输电塔组立的关键技术。由于塔身超高,风荷载将直接影响到构件的吊装定位及施工安全。本文利用工程所在地已有的风速观测资料,并结合当地的气象条件,开展江中高空风速变化特点的分析计算,掌握风速变化规律; 针对座地双摇臂旋转式支座抱杆组立钢管高塔,考虑江中高空风速的变化特点,开展高位构件及横担吊装施工过程中风荷载对吊装、定位的影响规律研究,提出高位构件吊装施工的安全风速。结果表明:工程所在江域江面平均风速达5.43 m/s,最大风速平均值达15.67 m/s; 不同塔高处风速对吊装构件的偏移量影响较大; 考虑到吊装施工安全,建议安全风速限值取17 m/s,当施工时当地10 m高度处的基本风速大于安全限值时,建议停止构件吊装施工或者加强安全措施。
Abstract:
Hoisting and installation of components and cross-arm at high altitude is the key technology for constructing the large span transmission tower.Due to the height of tower body,the wind load will directly affect the position of the component during hoisting,and therefore the construction safety.By using the existing observation data of wind velocity at the project location,the characteristic of wind speed at the high altitude over the Changjiang river was analyzed.Considering the variation law of wind speed,the positioning accuracy of components crane under wind load was studied for the double rocker arm rotary bearing tower,and the safe wind speed for hoisting components and cross-arm was proposed.Results showed that the average wind speed at the project location was 5.43 m/s,while the average maximum wind speed reached 15.67 m/s.The wind velocity had a great influence on the positioning accuracy of the components crane at different heights of the tower.It was suggested that if the wind speed exceeded the safe limit value of 17 m/s,the construction should be suspended or the security arrangement be strengthened.

参考文献/References:

[1] 陈志辉.500 kV同塔双回路直流线路铁塔组立工艺[J].电力建设,2012,33(1):105.
[2] 利小兵,张耀,宋洋,等.超高压输电线路大跨越利用座地双平臂抱杆组立钢管高塔施工技术[J].广东电力,2011,24(6):42.
[3] 黄世成,周嘉陵,任键,等.长江下游百年一遇的极值风速分布[J].应用气象学报,2009,20(4):437.
[4] 刘聪,黄世成,朱安祥,等.苏通长江公路大桥设计风速的计算与分析[J].应用气象学报,2006,17(1):44.
[5] 中国建筑科学研究院.建筑结构荷载规范:GB 5509—2012[S].北京:中国建筑工业出版社,2012.
[6] 熊织明,钮永华,邵丽东,等.500 kV江阴长江大跨越工程施工关键技术[J].电网技术,2006,30(1):28.
[7] 黄友钦.大跨越钢管混凝土拱桥吊装施工的抗风研究[D].西安:长安大学,2006.
[8] 曾志伟.辅助索道滑移吊装超长横担施工技术[J].电力建设,2011,32(2):123.
[9] 黄海锋.500 kV湄洲湾海上跨越高塔组立施工关键技术[J].电力建设,2009,30(12):21.
[10] 熊织明,邵丽东,吴建宏,等.346.5 m输电高塔施工技术[J].特种结构,2004,21(3):18.
[11] 竹志杨.60 m旋转式多臂浮抱杆吊装大跨越输电高塔[J].江苏电机工程,1990,9(1):46.
[12] 刘玉杰,孔晨华.1 000 kV特高压输电线路钢管塔吊装最优控制策略的研究及应用[C]//中国电机工程学会年会论论文集,北京:中国电机工程学会,2013.

备注/Memo

备注/Memo:
收稿日期:2017-07-03
基金项目:2016年国家电网公司科技项目; 国网江苏省电力公司科研攻关项目(20165008512)
作者简介:高正平(1976—),男,博士,E-mail:gaozhengping@163.com; 张大长(联系人),教授,E-mail:dczhangchina@163.com.
引用本文:高正平,黄士君,黄凤华,等.超高大跨越输电铁塔高空构件吊装施工安全风速[J].南京工业大学学报(自然科学版),2019,41(2):206-211..
更新日期/Last Update: 2019-03-31