Barrel-vault roofing element
    1.
    发明授权
    Barrel-vault roofing element 失效
    桶穹顶屋顶元素

    公开(公告)号:US4422268A

    公开(公告)日:1983-12-27

    申请号:US253798

    申请日:1981-04-13

    摘要: A semicylindrical roofing member includes an arch-shaped carrying rib and one cylindrically curved plastic sheet that rests on the carrying rib. At least one non-extensible strap spans the plastic sheet and holds it to the carrying rib. This strap is releasably attached to the carrying rib by catches at its ends. A strip of soft flexible material is positioned between the strap and the plastic sheet on the carrying rib and is compressed by the strap. As a result, the strap is held in position on the sheet under tensile stress and thus secures the sheet to the rib.

    摘要翻译: 半圆柱形屋顶构件包括拱形承载肋和搁置在承载肋上的一个圆柱形弯曲塑料片。 至少一个不可伸展的带跨越塑料片并将其保持在承载肋上。 该带通过其端部处的卡扣可释放地附接到承载肋。 软质柔性材料条被定位在承载肋上的带和塑料片之间并被带子压缩。 结果,带子在拉伸应力下保持在片材上的适当位置,从而将片材固定到肋条上。