摘要
以220kV线路猫头直线塔为研究对象,以有限元分析为研究手段,建立桁梁混合模型,对其在不同覆冰载荷作用下的强度、刚度及稳定性(屈曲)问题进行分析。最大位移和最大应力都发生在塔头的挂线点,整体综合位移是从塔头到塔腿逐渐变小。在屈曲分析中,铁塔下曲臂的杆件出现了屈曲,则应加强铁塔塔头的设计。
Take cat head straight line tower of 220kV line as a research object,and finite analysis as an analysis method,a hybrid truss medel has heen etstablished.The strength,rigidity and stability under the action of different icing loads are analyzed.Both maximum displacement and maximun stress occurs at the ligationg terminal of the tower head and the integral displacement from the tower head to tower foot becomes smaller.For the analysis of bucking,the rods of the crank arms under the tower bend,must design a strong tower head.
出处
《电气开关》
2012年第6期75-78,共4页
Electric Switchgear
