摘要
针对送电线路铁塔塔身结构设计,从轴心受力构件的强度计算公式和稳定计算公式入手,得出塔身主材角钢最优计算长度的推导方法,通过实例分析压杆稳定强度折减系数对Q235和Q345 2种钢材受力性能的影响,给出不同情况下Q235和Q345 2种钢材的选择方法。
Aiming at the structure design of transmission line iron tower body,beginning from the intensity calculation formula and stabilization calculation formula of axial forced components,this paper gets the solution of tower body main material angle iron optimal algorithm,and analyzes the influence of compression bar stability intensity subtraction coefficient on Q235 and Q345 materials stress performance through the exmple,educes Q235 and Q345 materials selection method under various condition.
出处
《河北电力技术》
2010年第2期31-33,48,共4页
Hebei Electric Power
关键词
送电线路
铁塔塔身
节间长度
最优计算长度
角钢材质
强度折减系数
transmission line
iron tower
tower body section length
optimized calculation length
angle iron material
intensity subtraction coefficient
