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| Countermeasures against extreme wind and snow disasters to solar greenhouses based on temporary reinforcement |
| College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083，China |
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Abstract To investigate the reinforcement measures of solar greenhouse structure under extreme wind and snow disasters，the single frame model of solar greenhouse was established by ANSYS finite element analysis software with consideration of material nonlinearity, large geometric deformation and structural nonlinearity conditions. The whole processes of instability and failure for the solar greenhouse structure under four load conditions of wind, snow, wind-led blizzard and snow-led blizzard were respectively simulated. According to the instability mode and load-displacement relationship curve of the structure, the temporary reinforcement methods were proposed. The results show that the wind and snow resistance of the solar greenhouse is significantly improved after temporary reinforcement. The wind load bearing capacity is increased by 154%-300%,and the snow load bearing capacity is increased by 11%-129%. The wind-led blizzard bearing capacity is increased by 245%-273%, and the snow-led blizzard bearing capacity is increased by 203%-264%.
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Received: 21 September 2020
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2022, Vol. 43 
