Rothoblaas - 木螺钉和连接器 Page 288
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受剪螺钉的最小距离 d1 a1 [mm] [mm] 5∙d a3,t [mm] 12∙d a4,t [mm] 3∙d a2 [mm] a3,c [mm] a4,c d1 a1 [mm] [mm] 3∙d 15∙d a4,t [mm] 5∙d a4,c [mm] [mm] d = 螺钉标称直径 5∙d 通过预钻孔插入的螺钉 通过预钻孔插入的螺钉 4 20 12 4,5 30 40 60 72 96 15 18 24 14 3∙d 11 12 14 3∙d 3,5 35 40 53 18 7∙d 14 3∙d 4,5 45 12∙d 60 68 15∙d 20 23 5∙d 20 10∙d 35 40 5∙d 18 20 18 32 23 45 5∙d 10∙d 23 受力端 -90° < α < 90° a2 a2 15 35 15 无预钻孔状态下插入螺钉 4 8 25 12∙d 12 6 5∙d 54 28 5 23 48 11 [mm] 荷载-木纹夹角 α = 90° 42 3∙d a3,t a3,c 11 25 10∙d [mm] 18 7∙d [mm] a2 3,5 荷载-木纹夹角 α = 0° 5∙d 5 60 25 75 18 42 18 6 72 30 56 24 8 96 40 备注： 14 4 16 28 32 5∙d 18 20 23 7∙d 3∙d 5∙d 5∙d 25 11 3,5 18 18 28 4 4,5 20 23 20 7∙d 25 28 30 40 非受力端 90° < α < 270° F α α a3,t 5∙d 35 18 14 4∙d 4∙d 5 20 20 7∙d 35 7∙d 35 7∙d 3∙d 35 15 无预钻孔状态下插入螺钉 40 10∙d 32 12 30 25 18 25 40 80 18 7∙d 35 60 4,5 16 10∙d • 考虑到木构件的密度ρk ≤ 420 kg/m3 和计算直径d相当于 = 螺钉标称直径，最小 距离符合 EN 1995: 2014 标准的要求。 288 | SCI A2 | AISI305 | 户外 14 120 F a1 a1 4∙d 3,5 90 50 25 24 4∙d 23 40 5∙d 45 10∙d 32 10∙d 45 20 5∙d 23 10∙d 5∙d 受力边缘 0° < α < 180° 5 25 25 50 50 50 25 6 32 24 32 42 56 42 56 42 56 6 8 18 24 30 40 30 40 60 80 60 80 60 80 30 40 非受力边缘 180° < α < 360° α F α 8 24 a4,t a3,c • 在钢-木连接的情况下，最小间距 (a1,a2) 可以乘以系数 0.7。 • 在面板-木连接的情况下，最小间距 (a1,a2) 可以乘以系数 0.85。 F a4,c
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