Optimization Of Roof Structure Of Sunlight Greenhouse And Research On Building Performance Based On BIM

The facility horticulture area of China ranked first in the world,but compared with the developed countries such as Holland,there are many deficiencies.With the rapid development of world economy,science and technology,as the most important agricultural facility,the solar greenhouses are becoming more and more intelligent,modular,and green.However,due to the late start of solar greenhouse research in China,With the development of area,the problem of non-standard design standards for greenhouse structures has gradually become more prominent.Based on the above problems,firstly,this paper uses the method of simulation analysis to derive the calculation formula applicable to the horizontal projection width of the rear roof of the solar greenhouse in various latitudes.The reasonable range of the horizontal projection width of the rear roof obtained by this formula can be based.The temperature and temperature characteristics of crops grown in greenhouses are reasonably selected and flexible than previous theoretical calculation formulas,which can provide a reference for the standardized design of Chinese solar greenhouses.Secondly,from the perspective of ensuring the maximum amount of daylight in the solar greenhouse,based on the solar greenhouse Optimal design of the structure for direct light radiation calculation software.Taking the solar greenhouse in Yangling area as an example,the ridge height of the optimized solar greenhouse increases to 4.73 m,and the inside angle of the rear roof of the greenhouse increases to 42.The rear wall and rear roof of the greenhouse Compared with before optimization,the cumulative radiation amount can be increased by 9.76%,which significantly improves the thermal insulation and heat storage of the greenhouse,which is conducive to the increase of winter crop production in the greenhouse.At the same time,the optimized solar greenhouse lighting curve roof has also been reduced from 10.70 m to 10.67 m,increasing the economy of solar greenhouse construction.It provides a scientific basis for the design of the solar greenhouse in Yangling area,and also provides references and new ideas for the optimal design of the solar greenhouse structure in other regions;when ensuring that the solar greenhouse structure can obtain sufficient light,it is based on ANSYS structural analysis software Optimize the design of the stability and economy of the solar greenhouse truss structure.Taking the solar greenhouse in the Yangling area as an example,compared with the traditional greenhouse structure,the number of webs of the optimized solar greenhouse truss structure is reduced by 1/3,saving 3.5% of the steel,and replacing the welding by articulation,which reduces the project Quantity,and avoid the hidden quality problems caused by excessive solder joints,which provides a scientific basis for the optimal design of the solar greenhouse structure in Yangling area;finally,based on Revit software,the optimized solar greenhouse model is created and sorted out to obtain the solar greenhouse project Quantity schedule.Compared with the traditional CAD design,the Revit greenhouse model has the advantages of visualization and parameterization,which is conducive to the standardized promotion of the greenhouse and provides new ideas for the green,intelligent and modular development of modern solar greenhouses.