An updating detection approach to fuzzy - pattern identification based on strain mode is also presented to locate the specific bolted looseness damage by the reduplicative detection of distance nest degree and proportion nest degree 通过距离贴近度与相似贴近度的双重识别，可达到对输电塔架结构螺栓松动损伤的位置和程度的诊断。
In this paper , adopting the optimization equivalent method , the finite element model of transmission tower structure with bolted looseness - damage is set up according to the damaging characteristic of this tower structure 摘要本文针对输电塔架结构的损伤特点，采用优化等效的方法，建立了具有螺栓松动损伤的输电塔结构的有限元模型，同时提出了此结构螺栓松动损伤诊断基于应变模态的改进的模糊模式识别方法。
Wind hazard events in recent years show that in order to enhance the wind resistance of transmission lines , it is urgent for china to carry out study and risk assessment of wind hazards for transmission lines and to improve the wind resistant design for transmission towers 近年的风灾数据昭示，开展我国输电线路强风灾害的研究和风险评估工作、改进输电塔的抗风设计，是提高输电线路风灾防御能力的关键。
