我公司混疑土预制构件厂,从1985年开始采用露天长线台座钢活动胎模生产工艺。按国标G410图集生产预应力大型屋面板,其长度6m,宽度1.5m,高度0.24m。纵肋下部预应力主筋,采用冷拉Ⅱ级和Ⅲ级粗钢筋。板面上部预应力筋采用8φ~b4冷拔低碳钢丝,沿板跨度方向, My company’s mixed soil prefabricated components factory, from 1985 began using open-air long-term pedestal steel movable tire mold production process. According to the national standard G410 atlas production of prestressed large roof panels, the length of 6m, width 1.5m, height 0.24m. The main ribs of the lower longitudinal ribs are prestressed with cold drawn grade II and III coarse steel bars. The prestressed tendons on the slab adopt 8φ~b4 cold-drawing low-carbon steel wire along the span of the slab.