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%.
杨升华，刘雪迎，蒋秀根. 基于临时加固策略的日光温室极端风雪灾害对策[J]. 江苏大学学报（自然科学版）, 2022, 43(1): 45-53.
YANG Shenghua, LIU Xueying, JIANG Xiugen. Countermeasures against extreme wind and snow disasters to solar greenhouses based on temporary reinforcement[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2022, 43(1): 45-53.
JIN X Y. Principles and main points of recent revision of ′Load code for the design of building structures′[J]. Journal of Building Structures, 2011, 32(12): 79-85.（in Chinese）
ZHOU C J. Dr Zhou's investigation （85）— flood disaster record-situation and disaster relief measures of the solar greenhouse after the "8·20" flood in Shouguang[J].Applied Engineering Technology, 2018,38(28):45-53.（in Chinese）
DING M, SHI X D, LI M M, et al. Load-bearing capacity of films and its effect on structure stability of Chinese solar greenhouse[J].Transactions of the Chinese Society of Agricultural Engineering，2013,29(12):194-202.（in Chinese）
［4］
JUNG H Y，LEE S H，LEE B J. Computer simulation on the characteristics of daylight by glass greenhouse structure[J]. Journal of the Korean Institute of Illuminating and Electrical Installation Engineers，2017，31（5）：25-32.
［5］
VILLAGRAN E A, BAEZA ROMERO E J, BOJACA C R. Transient CFD analysis of the natural ventilation of three types of greenhouses used for agricultural production in a tropical mountain climate[J]. Biosystems Engineering, 2019,188:288-304.
［6］
JUNG H J, YANG S Y, LEE T H. A study on the improvement of greenhouse frame to bear the heavy snow[J].Journal of the Korea Academia Industrial Cooperation Society, 2015,16(3)：2242-2248.
［7］
MORCOUS G. Performance of conservatories under wind and snow loads[J]. Journal of Architectural Enginee-ring, 2009,15(3):102-109.
［8］
REN J, WANG J, GUO S R, et al. Finite element analysis of the static properties and stability of a large-span plastic greenhouse[J]. Computers and Electronics in Agriculture, doi.org/10.1016/j.compag.2019.104957.
GUAN R, WU J Y,LIU Z H, et al. Analysis and optimization of greenhouse steel frame structure[J].Journal of Shanxi Agricultural University(Natural Science Edition), 2019,39(6):100-106.（in Chinese）
NI J H, LIU Y, MAO H P, et al. Effects of different fruit number and distance between sink and source on dry matter partitioning of greenhouse tomato［J］. Journal of Drainage and Irrigation Machinery Engineering, 2019, 37(4): 346-351.（in Chinese）
［11］
李笑天. 基于ANSYS的日光温室桁架结构优化研究[D]. 沈阳：沈阳农业大学, 2020.
［12］
YU I, KIM D, SANGMAN J. Assessment of design snow depth for green house using frequency analysis[J]. Journal of the Korean Society of Hazard Mitigation, 2016,16(1):247-254.
［13］
MARAVEAS C. Wind pressure coefficients on greenhouse structures[J].Agriculture, doi.10.3390/agriculture10050149.
DOUGKA G, BRIASSOULIS D. Load carrying capacity of greenhouse covering films under wind action: optimi-sing the supporting systems of greenhouse films[J]. Bio-systems Engineering, 2020,192:199-214.
DING M, ZHU D, XU J, et al. Space robustness of Venlo greenhouse structure under wind and snow load[J]. Journal of China Agricultural University,2017,22(1):120-128.（in Chinese）
WU L T, ZOU P, WANG R, et al. Wind-proof emergency technology and post-disaster restoration management of solar greenhouse[J]. Jiangxi Agriculture，2020(8): 119-120.（in Chinese）
DING Y M. Research on common problems and reinforcement technology of solar greenhouse after disaster[J]. Technology and Economic Guide, 2018,26(34):101.（in Chinese）
［19］
MARAVEAS C, TSAVDARIDIS K D. Strengthening techniques for greenhouses[J].AgriEngineering, 2020,2(1):37-54.
WANG Z, GU L L, GAO Z Z, et al. Experimental study on poisson′s ratio of lumber by dynamic testing[J].Scientia Silvae Sinicae,2015,51(5):102-107.(in Chinese)
2022, Vol. 43 
