我们于1980年开始研制镀锌薄壁管装配式塑料大棚,同年11月在安徽拖拉机厂、牡丹江煤矿机械厂进行小批量试制,今年已陆续在各地投入使用。为蔬菜保护地栽培提供的竹木棚、水泥柱竹木棚、水泥柱钢筋棚、全钢结构棚等,各地均建了不少,但都在不同程度上存在下列问题。1.结构不够合理,抗风雪载能力不够理想;2.棚跨过大,立柱过多,遮光面积大,通风换气困难;3.材料利用不够合理,一般是有什么用 We started to develop galvanized thin-walled tube-mounted plastic shed in 1980. In November of the same year, we piloted the small-batch trial production at Tractor Factory in Anhui and Mudanjiang Coalmine Machinery Factory. This year we have put into operation one after another in various places. For the protection of vegetables provided by the cultivation of bamboo shed, cement column bamboo shed, cement column steel shed, steel shed all over, all built a lot, but to varying degrees, there are the following problems. 1 structure is not reasonable, wind and snow load capacity is not ideal; 2 shed across the large column too much light shading area, ventilation difficulties; 3 material utilization is not reasonable enough, generally what is the use