输电塔风荷载反演实例研究

The research of the wind load identification of transmitting electricity tower case study

作为大型复杂生命线工程系统的重要组成部分,输电系统的破坏将导致供电系统的瘫痪,给社会和 人民生命财产造成严重的损失．目前,人们对输电塔的动力性能,尤其是输电塔在风荷载作用下结构性能 的了解相当缺乏,由于分析手段和分析理论的局限性,目前研究成果尚很难准确反映真实结构的动、静力 特性．本文介绍了输电塔风荷载反演原理,结合江黄线输电塔的现场风振实测,获取结构的真实响应进行 风荷载反演分析．

As the important components of large - scale complicated lifeline project system, the destruction of transmitting electricity system can cause paralysis of electric power system, cause serious losses to the society and people s lives and properties. People s understanding to the dynamics of transmitting electricity tower at present, especially the understanding of structure performance under the function of loading of wind is quite scarce. Because of the limitation of the analysis means and analysis theory, it is still very difficult for the research results to reflect dynamic and static characteristic of the true structure accurately. This text introduces the wind load identification principle of transmitting electricity tower, and combines wind survey of Jiang - huang line transmitting electricity tower on site, and utilizing the true response of structure loads to identify the wind.