Wind-resistant and cold-bridge-resistant structure of metal roof: Fid-Bau Portal

Wind-resistant and cold-bridge-resistant structure of metal roof

WU JI / CHEN JINGQIU

The invention discloses a wind-resistant and cold-bridge-resistant structure of a metal roof, which comprises a main purline and a Z-shaped secondary purline which are arranged on a steel beam, a cold-resistant purline is arranged on the Z-shaped secondary purline and is fixed below a roof panel support through a self-tapping screw to form a metal roof project of the cold-bridge-resistant structure, and the wind-resistant and cold-bridge-resistant structure is characterized in that the cold-resistant purline is arranged in a bidirectional 60-degree inclined section square pipe; the bidirectional 60-degree inclined section square pipe is respectively fixed with the roof panel support and the Z-shaped secondary purline through self-tapping screws, so that a metal roof project with a wind-resistant and cold-bridge-resistant structure is formed; the bidirectional 60-degree inclined section square pipe is a rectangular pipe, and 60-degree inclined sections are arranged at the two ends of the bidirectional 60-degree inclined section square pipe. Compared with the prior art, the machining method is simple and convenient, the support can be effectively fixed on the premise that the cold bridge prevention effect is achieved, the wind uplift resistance of the roof panel is enhanced, and the influence of shaking of the self-tapping screw in the cold-proof purline on the safety of the roof panel is avoided.

本发明公开了一种金属屋面的抗风防冷桥结构，包括设置在钢梁上的主檩条和“Z”形次檩条，防冷檩条设置在“Z”形次檩条上，通过自攻钉固定在屋面板支座下，构成防冷桥结构的金属屋面工程，其特点是所述防冷檩条设置在双向60°斜截方管内，且由双向60°斜截方管通过自攻钉分别与屋面板支座和“Z”形次檩条固定，构成抗风防冷桥结构的金属屋面工程；所述双向60°斜截方管为矩形管，其两端设有60°的斜截边。本发明与现有技术相比具有加工方法简便，能够在起到防冷桥作用的前提下，有效固定支座，加强屋面板抗风揭性能，避免自攻钉在防冷檩条中的晃动对屋面板安全的影响。

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