基于欧拉旋转变换的输电线路斜柱基础作用力系转换研究  

Research on Force System Transformation of Inclined Column Foundation of Transmission Line Based on Euler Rotation Theory

作　　者：汪金勇 邓建俊 王磊 曾二贤 胡新良 潘峰 WANG Jinyong;DENG Jianjun;WANG Lei;ZENG Erxian;HU Xinliang;PAN Feng(Zhejiang Electric Transmission and Transformation Engineering Corporation,Hangzhou 311500,China;China Energy Engineering Group Zhejiang Electric Power Design Institute,Hangzhou 310012,China;Central Southern China Electric Power Design Institute of China Power Engineering Consulting Group,Wuhan 430071,China)

机构地区：[1]浙江省送变电工程有限公司,浙江杭州311500 [2]中国能源建设集团浙江省电力设计院有限公司,浙江杭州310012 [3]中国电力工程顾问中南电力设计院有限公司,湖北武汉430071

出　　处：《电力勘测设计》2024年第11期54-60,共7页Electric Power Survey & Design

基　　金：国家自然科学基金下击暴流环境下风、浪、流联合作用机制及跨海输电线路失效模式(51878607)。

摘　　要：斜柱基础与直柱基础相比,具有下压力或上拔力增幅不明显、水平力大幅下降的特点,因此在输电线路上得到了广泛的应用,故斜柱基础作用力的正确转换是斜柱基础设计的关键。本文首先结合空间力系法和立体解析几何,推导正侧面坡度相等时的斜柱基础作用力转换方法;其次,根据正侧面坡度不同时,结合欧拉旋转变换原理和计算机图形学,建立一种斜柱式立柱基础作用力的转换精确方法,能准确得出斜柱基础的受力特性;最后,选取110 kV~1000 kV典型铁塔基础作用力进行对比分析,得出重要结论。本文提出的斜柱基础作用力的转换方法,可作为斜柱基础计算和设计的一种参考。Compared with the straight column foundation,the inclined column foundation has the characteristics that the downward pressure or uplift force does not increase significantly,and the horizontal force decreases significantly.Therefore,it has been widely used in the transmission line.And the correct transformation of the force of the inclined column foundation is the key to the design of the inclined column foundation.First of all,combined with the space force system method and three-dimensional analytic geometry,this paper deduces the force conversion method of inclined column foundation when the front and side slopes are equal;Secondly,according to the different slopes of the front and side,combined with the Euler rotation transformation principle and computer graphics,an accurate transformation method of the acting force of the inclined column foundation is established,which can accurately obtain the mechanical characteristics of the inclined column foundation;Finally,the foundation forces of 110 kV~1000 kV typical towers are selected for comparative analysis,and some conclusions are drawn.The transformation method of the acting force of the inclined column foundation proposed in this paper can be used as a reference for the calculation and design of the inclined column foundation.

关 键 词：输电线路 斜柱基础 欧拉旋转 力系转换 

分 类 号：TM75[电气工程—电力系统及自动化]