Structural Optimization And Design Of The Sunlight Greenhouse In Cold-Arid Areas

This paper utilized the ANSYS software to build a three-dimensional analysis for the common energy-saving sunlight greenhouse structure in cold-arid areas of Hohhot, and studied the force of3kinds loads’combinations on the sunlight greenhouse structure (the constant load with snow load、south wind load and north wind load), optimized the rake angle、waist angle、front roof angle and rear roof angle by referencing the GB/T19165-2003greenhouse structure and performance requirements and dual chord truss energy-saving sunlight greenhouse construction implementation, and optimized the cross-sectional size of the greenhouse structural bars by using fully stress method.The optimized greenhouse structure could save the amount of steel about1.43kg/m2when comparing with the original structure; all the bars were selected the standard materials, which will help purchasing and greenhouse construction; and the optimized rake angle、waist angle、front roof angle and rear roof angle will benefit the snow from the up half way slope of the lighting surface of the energy-saving sunlight greenhouse to fall, while the internal lighting is also more favorable.Then utilized the Denmark B&K company’s PULSE system to do the verification experiment in the following3kinds of conditions (operating on the roof load combinations, scraping the northwest wind load combinations and scraping southwest wind load combinations), through the verification experiments found that the test measured the maximum deformation position is good consistent with the ANSYS finite element analysis of the maximum deformation position, indicated the method of using ANSYS software to optimize the design of the greenhouse is scientific and feasible.Finally, compared the maximum displacement values obtained by the PULSE system testing with the maximum displacement values by using ANSYS finite element analysis software simulation, and did the corresponding analysis and discussion.