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TW Catalogue EN Int. 03-2015

6 03/2015 11 WT Principles of design Load-bearing capacity values WT-T ETA-12/0063 Edge and intermediate spacings Table 6 a1,t a1 a1 a1,c a2,t a2a2 a1 a1 a2a2 a2,c Pilot drilling diameter: WT-S/T-6,5 = 4 mm WT-T-8,2 = 5 mm – Required minimum timber thicknesses must be taken into account. – All calculations must be verified and signed off by the planner in charge before the work is performed. Remarks 4/5 k,1 k,2 k,i=Angle of intersection (0°  k,i  90°) 90° 75° 60° 45° 30° 15° 0° WT-S/T-6,5xL parallel with grain a1 16 19 22 24 27 30 33 at right angles to grain a2 16 19 22 24 27 30 33 a2, red.* 10 10 11 12 14 15 16 WT-T-8,2xL parallel with grain a1 20 23 27 30 33 37 40 at right angles to grain a2 20 23 27 30 33 37 40 a2, red.* 12 12 13 15 17 18 20 Values not stated here can be found in Table 6 / values in mm Intermediate spacings with crossed pairs of fasteners Table 7   *only possible if a1 10d1 Axial Shearing d1 mm 0° 45° 90° WT-S/T-6,5xL parallel with grain a1 5 33 (4+cos) × d 33 31 26 at right angles to grain a2 5 33 4 × d 26 26 26 a2,red.* 2,5 16 end grain under load a1,t 80 mm 80 80 80 end grain not under load a1,c 5 33 0o   30o 4 x d 26 - - 30o<  90o (1+6sin)× d - 34 46 edge under load a2,t max. [(2+2sin) × d; 3d] 20 22 26 edge not under load a2,c 15 3 × d 20 20 20 WT-T-8,2xL parallel with grain a1 5 40 (4+cos) × d 40 38 32 at right angles to grain a2 5 40 4 × d 32 32 32 a2, red.* 2,5 20 end grain under load a1,t 80 mm 80 80 80 end grain not under load a1,c 5 40 0o   30o 4 x d 32 - - 30o<  90o (1+6sin)× d - 42 56 edge under load a2,t max. [(2+2sin) × d; 3d] 24 27 32 edge not under load a2,c 3 24 3 × d 24 24 24  = force-grain angle / values in mm*only possible if a1 10  d1 sgsclamp d1 dk Technical documentation and data sheets 11. 603/2015 parallel with grain a1 16192224273033 a2 16192224273033 a2, red.* 10101112141516 parallel with grain a1 20232730333740 a2 20232730333740 a2, red.* 12121315171820 parallel with grain a1 533 (4+cos) × d 333126 a2 5334 × d 262626 a2,red.* 2,516 end grain under load a1,t 80 mm 808080 end grain not under load a1,c 533 (1+6sin)× d - 3446 edge under load a2,t max. [(2+2sin) × d; 3d] 202226 edge not under load a2,c 153 × d 202020 parallel with grain a1 540 (4+cos) × d 403832 a2 5404 × d 323232 a2, red.* 2,520 end grain under load a1,t 80 mm 808080 end grain not under load a1,c 540 (1+6sin)× d - 4256 edge under load a2,t max. [(2+2sin) × d; 3d] 242732 edge not under load a2,c 3243 × d 242424

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