摘要
针对糯扎渡送电广东±800kV直流输电工程线路施工的诸多挑战,建立基于海拉瓦技术的施工管理系统,依靠信息化技术辅助施工建设,依靠信息化技术创新管理流程。利用可视化技术和精益化管理,辅助施工线路调查、技术方案制定、施工进度管控等方面,提高了工程管理能力和建设水平。
Taking the project of Xijiang 500kV four circuits on one large-span transmission tower as an example,the structural design of the large-span transmission tower was introduced.Davenport wind speed spectral density function was used to simulate wind speed of the large-span transmission tower-line system.Using direct integration Newmark method,numerical simulated wind speed time series was employed to investigate the wind-induced vibration of the large-span transmission tower-line system.The recommended value of wind vibration coefficient was proposed and compared with its value of wind tunnel experiment.The results can be used as a reference for similar large-span transmission tower.
出处
《电力勘测设计》
2012年第2期51-56,共6页
Electric Power Survey & Design
关键词
海拉瓦技术
三维可视化技术
精益化管理
电子化移交
four circuits on one tower
large-span transmission tower-line system
wind speed time-history simulation
time-history analysis
wind-induced vibration factor.
