Rothoblaas - 木螺钉和连接器 Page 145
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静态值 特征值 EN 1995:2014 抗拉强度 (1) 几何形状 全螺纹抗拔强度 (2) L 部分螺纹抗拔强度 (2) Sg A Sg A 钢抗拉强度 A d1 d1 [mm] L [mm] 250 300 11 b [mm] 240 290 Rax,k 260 33,34 47,22 [mm] 510 68,06 235 255 32,64 610 81,95 285 305 39,59 410 61,11 75,00 (1) 螺钉的强度设计值是木材边的强度设计值 (R ax,d) 与钢材边的强度设计值 (Rtens,d) Rax,d = min 29,17 205 560 Rax,k kmod γM Rtens,k γM2 230 185 540 之间的最小值。 22,22 54,17 550 备注： 180 155 460 590 15,28 135 440 600 130 40,28 310 450 490 Rax,k [mm] 360 500 木 A min [mm] 340 390 Sg [kN] 350 400 木 A min 110 160 210 260 280 [kN] 钢 Rtens,k [kN] 18,75 25,70 38,00 36,11 (2) 螺纹的轴向抗拔强度的评估考虑了木纹与螺钉之间的夹角为 90°，有效螺纹长度 为 b 或 Sg 。 对于 Sg 的中间值，可以线性插值。 木结构 | VGZ | 145
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