发布时间:2025-01-28 00:38:39
建筑施工现场普遍用的架子钢管是高频直缝焊接钢管,外径48mm,因在全国各地多次重复使用,壁厚2.5~3.5不等,每米重各异。所以,高大模板支架、超高脚手架等,所用钢管必须经过结构计算;
JGJ130-2011《建筑施工扣件式钢管脚手架安全技术规范》推荐的钢管标准为 GB/T13793或GB/T3091; 推荐的钢管规格为48.3×3.6,截面积506mm²、每米重3.97kg,每根重不应超过25.8kg。
家里老人多于年轻人房间里总是有一股味道他们说改不掉了如何处理这些味道
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