输电钢塔结构支座的沉降监测与模拟  

Settlement Monitoring and Simulation of a Steel Tower Support for Power Transmission Lines

作　　者：李鹏云[1] 陈波[2] 张峰[3] 王干军 宋春芳[2] 

机构地区：[1]广东电网公司电力科学研究院,广州510080 [2]武汉理工大学道路桥梁与结构工程湖北省重点实验室,武汉430070 [3]广东电网公司,广州510600 [4]广东电网公司中山供电局,广东中山528400

出　　处：《南方电网技术》2013年第1期68-71,共4页Southern Power System Technology

基　　金：国家自然科学基金(51178366);霍英东基金(131072);南方电网公司科技项目(K-GD2011-411)资助~~

摘　　要：以某220 kV输电钢塔为实际工程背景,开展了结构支座沉降的监测与模拟。基于空间杆系的力学模型,对该塔建立了输电塔-导线有限元模型,结合对杆塔支座沉降监测结果,进行了结构受力分析模拟。研究表明,由于支座不均匀沉降的作用,将导致结构中部分杆件产生较大的应力,这对结构的安全造成了较大的隐患。The monitoring and simulation on support settlement are actively carried out in this study by taking a real 220 kV transmission steel tower as a background. The finite element model of the transmission tower-line system are constructed based on the mechanical model of the spatial trusss system. The structural internal forces are analyzed through combining the monitoring results of tower support. The made observations indicate that some members deserve large stressess due to the effects of the uneven settlement of the support, which may induce large potential danger to the structure.

关 键 词：输电钢塔 变形监测 支座沉降 参数研究 

分 类 号：TM753[电气工程—电力系统及自动化] O346.5[理学—固体力学]