我国输电线路杆塔结构研究新进展

特高压电网的建设、输电新技术的推广应用给输电线路杆塔的研究提出许多新的课题，安全可靠、经济合理是杆塔结构研究的主要目标和方向。文章介绍了我国输电线路杆塔结构近年来在荷载取值、节点构造、结构优化、风致振动(塔线耦合振动和钢管塔微风振动)以及新材料应用(高强钢、钢管、耐候钢和冷弯型钢)等方面的研究进展以及工程应用情况。并根据研究现状和社会经济发展需求，提出我国杆塔结构在设计理论和方法、承载性能试验以及新材料应用、新塔型等方面需要进一步研究的内容。

New Advances in the Study of Transmission Tower Structure of China

With the construction of UHV grid and the application of innovative transmission technologies,many new research subjects have appeared for transmission tower structures.The main research aim and direction of transmission tower is to achieve its safety and economics.some advances in the study of transmission tower structures in China,including load value,structural joints,structure optimization,wind-induced coupled vibration and breeze vibration,as well as the application of new materials such as high strength steel,tubular steel,weathering-proof steel and cold-bending profiled steel is introduced.According to the current research situation and requirements of socioeconomic development,some research contents about design theory,experiments,materials and tower shape,which should be further strengthened,are proposed for transmission tower structures.