关键词: 高耸塔器, 横风向共振, 疲劳寿命

Abstract: Crosswind resonance not only affects the technological operation of high-rise tower, but also leads to destruction due to strength reduction. Based on engineering practice and taking safety, reliability and economics into account, some key preventive measures are put forward for design, fabrication and installation of high-rise tower so as to prevent failure of crosswind resonance acting on high-rise tower and ensure safe operation of the tower. It is considered that the most economical and effective measure is that vibration analysis of the tower should be carried out carefully during the design phase and some anti-vibration measures should be taken according to the analysis results. This paper also points out that the weld height has an effect on the fatigue life of butt-weld between the skirt and bottom head.

Key words: high-rise tower, crosswind resonance, fatigue life