现有通信铁塔加固技术研究
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摘要
随着通信技术的快速发展,电信运营商对通信铁塔载荷能力的需求日益提高,对现有通信铁塔的加固改造需求也随之出现。于塔架顶部设置更多的通信设备,除了增加结构恒荷载外,更加剧了塔架所受横向风荷载,因此,需要通过加固技术提高通信铁塔的整体稳定性,避免强风作用下结构发生倒塌。本文提出了采用预应力拉索及增设角钢加固主材两种结构加固方案,并通过分析计算验证了方案的合理性与有效性,可以为类似塔架结构的加固改造设计提供一定参考。
With the rapid development of communication technology,telecom operators' demand for load capacity of communication steel towers is increasingly strong,and the demand for reinforcement and reconstruction of existing communication steel towers also emerges.Setting up more communication devices at the top of the tower will increase the constant load of the structure besides the tower's lateral wind load.Therefore,it is necessary to enhance the overall stability of the communication steel tower through reinforcement technology to avoid the collapse of the structure under strong wind.This paper adopted two kinds of structural reinforcement scheme using the prestressing cable and steel angles,and through the analysis and calculation to verify the rationality and validity of the scheme.It can provide some valuable reference for the reinforcement design of similar tower structure.
With the rapid development of communication technology,telecom operators' demand for load capacity of communication steel towers is increasingly strong,and the demand for reinforcement and reconstruction of existing communication steel towers also emerges.Setting up more communication devices at the top of the tower will increase the constant load of the structure besides the tower's lateral wind load.Therefore,it is necessary to enhance the overall stability of the communication steel tower through reinforcement technology to avoid the collapse of the structure under strong wind.This paper adopted two kinds of structural reinforcement scheme using the prestressing cable and steel angles,and through the analysis and calculation to verify the rationality and validity of the scheme.It can provide some valuable reference for the reinforcement design of similar tower structure.
引文
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[9] 李振宝,杨小强,韩军科.角钢加固输电铁塔十字形组合截面主材承载力试验研究[J].工业建筑,2010,40(增刊):1088-1094.
[2] 杨帆.一种输电铁塔结构的加固方法及应用[C]//第七届全国现代结构工程学术研讨会论文集.天津:全国现代结构工程学术研讨会学术委员会,2007.
[3] 钢结构设计规范:GB 50017—2003[S].北京:中国计划出版社,2003.
[4] 建筑结构荷载规范:GB 50009—2012[S].北京:中国建筑工业出版社,2012.
[5] 移动通信工程钢塔桅结构设计规范:YD/T 5131—2005[S].北京:北京邮电大学出版社,2006.
[6] 空间网格结构技术规程:JGJ 7—2010[S].北京:中国建筑工业出版社,2010.
[7] 罗永锋,韩庆华.建筑钢结构稳定理论与应用[M].北京:人民交通出版社,2010.
[8] 陆赐麟,尹思明,刘锡良.现代预应力钢结构[M].北京:人民交通出版社,2003.
[9] 李振宝,杨小强,韩军科.角钢加固输电铁塔十字形组合截面主材承载力试验研究[J].工业建筑,2010,40(增刊):1088-1094.