通过对不同曲率半径下拱杆承受雪载能力的对比分析，得出以下结论：对给定矢跨比的双圆弧拱顶，在相同的雪荷载作用下，曲率半径对拱杆承载能力有较大的影响。据此可知，在不改变拱杆截面参数的前提下，通过调整拱顶曲率半径，可提高拱杆的承载能力，为进一步优化连栋塑料温室结构设计和降低生产成本提供科学研究。 Through comparing and analyzing the ability of the arch under different radius of curvature to bear the snow load, the following conclusions are drawn: For the double circular arc vault with given ratio of the span, under the same snow load, Greater impact. Therefore, under the premise of not changing the parameters of the arch section, by adjusting the curvature radius of the arch, the carrying capacity of the arch bar can be increased, which provides scientific research for further optimizing the structural design of the plastic greenhouse and reducing the production cost.