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: 52
- HTML全文浏览量: 9
- 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

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参考文献(17)

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