Rothoblaas - 木螺钉和连接器 Page 108
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受剪钉最小距离 | 钢-木 荷载-木纹夹角 α = 0° d1 a1 [mm] 通过预钻孔插入钉 4 [mm] 5∙d ∙ 0,7 14 5∙d ∙ 0,7 a3,t [mm] 12∙d 48 12∙d a4,t [mm] 3∙d 12 a2 [mm] a3,c [mm] d1 [mm] a1 3∙d ∙ 0,7 [mm] a4,c 荷载-木纹夹角 α = 90° 7∙d 3∙d 8 6 21 18 无预钻孔状态下插入钉 28 12∙d ∙ 0,7 50 a3,t [mm] 15∙d 60 15∙d 90 a4,t [mm] a3,c a4,c [mm] 5∙d ∙ 0,7 [mm] [mm] d = 钉子标称直径 14 10∙d 40 5∙d 20 5∙d 20 a2 a2 备注： 5∙d ∙ 0,7 60 10∙d 5∙d 30 30 F α α a3,t 17 4∙d ∙ 0,7 42 7∙d 42 7∙d 20 4 14 14 10∙d 40 7∙d 28 5∙d 非受力端 90° < α < 270° • 考虑到木构件的密度 ρ k ≤ 420 kg/m3 和计算直径相当于 d = 钉子标称直径，最小 距离符合 EN 1995: 2014 标准和 ETA 的要求。 108 | LBA | 木工 12 10∙d F a1 a1 3∙d 5∙d ∙ 0,7 5∙d 受力端 -90° < α < 90° 28 21 5∙d ∙ 0,7 11 28 6 17 4∙d ∙ 0,7 42 7∙d 18 3∙d 无预钻孔状态下插入钉 6 10∙d ∙ 0,7 4 11 7∙d 5∙d 18 3∙d [mm] a2 7∙d 42 7∙d 4 4∙d ∙ 0,7 72 3∙d 12 4∙d ∙ 0,7 13 3∙d ∙ 0,7 28 通过预钻孔插入钉 6 21 5∙d ∙ 0,7 21 5∙d ∙ 0,7 40 10∙d 60 10∙d 60 60 10∙d 20 30 5∙d 受力边缘 0° < α < 180° 非受力边缘 180° < α < 360° α F α a4,t a3,c • 在木-木连接的情况下，最小间距 (a1, a2) 必须乘以系数 1,5。 F a4,c
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