On May 18 this year, the sensed vibration of SEG building, a super high-rise building in Shenzhen, attracted widespread attention
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Recently, the heads of relevant units and experts said that through a large number of detection, monitoring, tests and analysis, it is demonstrated that the main structure of SEG building is safe and can continue to be used within the design load range and under normal use
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Through the key analysis of wind-induced vibration and structural cumulative damage, the expert group, It is considered that the wind-induced vortex induced resonance of the mast and the change of the dynamic characteristics of the building and the mast cause the sensible vibration of the SEG building
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After the building has been used for more than 20 years, the cumulative damage of profiled steel plate composite floor and mast connection points on some floors has changed the structural frequency, damping ratio and other dynamic characteristics
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The mast and the main structure of the building have a common vibration frequency, forming the necessary conditions for resonance
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The expert group believes that the removal of the mast can effectively solve the problem of induced vibration of the building, and the original lightning protection and navigation mark functions of the mast can be re arranged on the roof after the mast is removed
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The demolition project will be carried out at an appropriate time in the near future, and the damage repair project will be carried out simultaneously
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According to the relevant person in charge of Futian District Government of Shenzhen, it will continue to provide temporary business premises for the majority of merchants
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Merchants with temporary business needs can apply to SEG building management office
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