Ultra High Voltage (UHV) transmission tower has new structure and bigger size than towers in lower voltage level. Some experience of tower construction can not meet the need of UHV construction. In order to overcome the lack of construction experience and academic research, the construction load's affect on the built - up structures was researched, taking the cup - tower in the lOOOkV UHV Alternating Current (AC) transmission pilot project, from South Shanxi province to Jinmen via Nanyang as research object, a numerical simulation method was applied to make a finite element analysis on the construction technics, such as internal load of tower body sheet at the moment of being picked up and installation method of mid - overhanging with large mass and edge overhanging structure. Reseaech result indicates that, the tower body sheet should be reinforced when lifting off; it is better to fit the mid - overhanging by frontal piece and back piece; edge overhanging structure can be installed via cross arms and bracket of earthing wire. Some advice was made to reinforce local structure. The numerical simulation on construction of transmission tower can make up the lack of construction experience, and the simulation result provides construction with feasible advice.%在输电线路的铁塔受力强度问题的研究中,为了克服施工经验和理论研究的不足,以1000kV晋东南-南阳-荆门特高压交流试验示范工程酒杯塔为例,针对施工载荷对杆塔结构受力的影响,应用数值仿真方法对塔片起吊瞬间的受力、大质量中横担吊装以及边横担吊装等施工工艺进行有限元仿真分析.研究结果表明,塔片吊装瞬间需要补强、中横担宜前后分片吊装、边横担可以利用地线支架吊装,并提出局部补强的建议.输电杆塔组立施工的仿真分析弥补了施工经验的不足,仿真研究结果为施工提供了科学依据.
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