铸钢相贯节点在超高跨越钢管塔中的应用分析

黄涛; 李布辉; 朱姣; 宁帅朋; 谈磊

doi:10.13204/j.gyjzG21113012

铸钢相贯节点在超高跨越钢管塔中的应用分析

doi: 10.13204/j.gyjzG21113012

1. 国网江苏省电力公司建设分公司, 南京 210011;
2. 中国能源建设集团江苏省电力设计院有限公司, 南京 211102

基金项目:

国家电网有限公司科技项目(SGJSJSOOXMJS2000259)。

详细信息

作者简介:
黄涛,男,1986年出生,高级工程师。电子信箱:libuhui@jsdpdi.com.cn

计量
- 文章访问数: 124
- HTML全文浏览量: 14
- PDF下载量: 3
- 被引次数: 0
出版历程
- 收稿日期: 2021-11-30
- 网络出版日期: 2023-07-01

Application Analysis of Cast Steel Tubular Joints in Super High-Rise Long-Span Steel Tubular Transmission Towers

1. State Grid Jiangsu Electric Power Company Construction Branch, Nanjing 210011, China;
2. China Energy Engineering Group, Jiangsu Power Design Institute Co., Ltd., Nanjing 211102, China

摘要

摘要: 结合500 kV凤城—梅里长江大跨越塔工程设计实例,开展跨越塔下横担压杆连接节点选型,分别比选了相贯焊节点、焊接空心球节点和铸钢相贯节点。铸钢节点采用整体浇铸技术,有效解决了多根杆件空间交会的问题,避免了复杂的焊接工艺,根据选型结果采用铸钢相贯节点,铸钢材料为G20Mn5QT。通过非线性有限元分析,对铸钢节点的受力特性和极限承载力进行研究,并计算得到不同工况下节点的设计承载力。结果表明:铸钢节点是安全可靠的,可在超高跨越塔中推广应用。
- 超高 /
- 钢管塔 /
- 铸钢相贯节点 /
- 节点选型 /
- 应用分析
Abstract: Based on the long-span transmission tower of 500 kV Fengcheng to Meili project, the selection of the joint of bottom-crossarm compression members was conducted. Three types of joints were put forward and compared, including tubular welding joint, welded hollow spherical joint and cast steel tubular joint. Monolithic casting technique was adopted in cast steel joints, it could solve the problem of space intersection of multiple members, and avoid complex welding process. Based on the comparison results, the cast steel joint was selected, and the steel material was G20Mn5QT. Then, the nonlinear finite element analysis was performed, the stress characteristics and ultimate bearing capacity of the cast steel joint were investigated, and the design bearing capacity of the joint under different load cases was calculated. The resules showed that the cast steel joint was safe and reliable, which could be wildly used in super high-rise transmission towers.
- super high-rise /
- steel tubular tower /
- cast steel tubular joint /
- joint type selection /
- application analysis

HTML全文

参考文献(17)

[1]	汪楚清, 王虎长, 李亮, 等. 大跨越输电钢管塔结构多尺度有限元分析[J]. 工程力学,2013,30(7):147-152.
[2]	吴静, 李峰, 王先铁, 等. 特高压钢管塔带颈锻造法兰承载性能试验与参数分析[J]. 高电压技术,2019,45(11):3494-3503.
[3]	LI B H, ZHANG D C, CAO P Z, et al. Experimental research on dynamic tensile behavior of full-scale welded-necked flange joints used in transmission steel tubular towers[J]. Journal of Vibroengineering,2018,20(3):1274-1287.
[4]	潘峰, 叶尹, 胡文侃. 输电线路大跨越钢管塔法兰连接试验及研究[J]. 钢结构,2010,25(5):17-22.
[5]	李正良, 刘红军. 输电塔钢管-插板连接节点板承载力研究[J]. 土木工程学报,2011,44:52-58.
[6]	刘春城, 李国强, 樊晓玲, 等. 大跨越钢管塔K型节点滞回性能分析[J]. 东北电力大学学报,2017,37(6):79-85.
[7]	王晓建, 陈勇, 王昌, 等. 加劲相贯K形节点承载力试验研究及设计计算方法[J]. 钢结构,2018,33(11):1-6.
[8]	王龙飞, 戴岳, 张大长. 钢管塔正负偏心K形相贯节点的极限承载力研究[J]. 建筑钢结构进展,2019,21(1):89-94.
[9]	叶尹, 郭勇. 焊接空心球节点在输电线路大跨越钢管塔中的应用[J]. 钢结构,2018,23(1):35-39.
[10]	中华人民共和国住房和城乡建设部.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.
[11]	关世杰. 输电铁塔两类钢管节点承载力性能研究[D]. 杭州:浙江大学,2013.
[12]	李布辉, 陶青松, 余亮, 等. 385m超高长江跨越塔结构设计分析[J]. 武汉大学学报(工学版),2021,54(2 ):1-6.
[13]	李帅. 铸钢G20Mn5QT微观断裂机制模型的参数校准及应用[D]. 天津:天津大学,2018.
[14]	中华人民共和国住房和城乡建设部.钢结构设计标准:GB 50017-2017[S]. 北京:中国建筑工业出版社, 2018.
[15]	中国国家标准化管理委员会.一般工程用铸造碳钢件:GB/T 11352-2009[S]. 北京:中国标准出版社, 2009.
[16]	中华人民共和国住房和城乡建设部.铸钢结构技术规程:JGJ/T 395-2017[S]. 北京:中国建筑工业出版社, 2017.
[17]	中国工程建设标准化协会.铸钢节点应用技术规程:CECS 235:2008[S]. 北京:中国计划出版社, 2008.