Rothoblaas - Plates and Connectors Strona 52

TIMBER-TO-STEEL AND ALUMINIUM STATIC VALUES SHEAR Rv,k - 1 INTERNAL PLATE DOWEL HEAD INSERTION DEPTH 0 mm FASTENING SBD [mm] 7,5x55 ta 7,5x95 7,5x115 7,5x135 7,5x155 7,5x175 7,5x195 7,5x215 7,5x235 Beam width B [mm] 60 80 100 120 140 160 180 200 220 240 Head insertion depth p [mm] 0 0 0 0 0 0 0 0 0 0 Exterior wood ta [mm] 27 37 47 57 67 77 87 97 107 117 0° 7,48 9,20 10,18 11,46 12,91 13,69 13,95 13,95 13,95 13,95 30° 6,89 8,59 9,40 10,51 11,77 12,71 13,21 13,21 13,21 13,21 s ta 7,5x75 Rv,k [kN] load-to-grain angle B 45° 6,41 8,09 8,77 9,72 10,84 11,90 12,53 12,57 12,57 12,57 60° 6,00 7,67 8,24 9,08 10,07 11,15 11,78 12,02 12,02 12,02 90° 5,66 7,31 7,79 8,53 9,42 10,40 11,14 11,54 11,54 11,54 DOWEL HEAD INSERTION DEPTH 15 mm FASTENING p SBD [mm] 7,5x55 ta 7,5x95 7,5x115 7,5x135 7,5x155 7,5x175 7,5x195 7,5x215 7,5x235 Beam width B [mm] 80 100 120 140 160 180 200 220 240 - Head insertion depth p [mm] 15 15 15 15 15 15 15 15 15 - Exterior wood ta [mm] 37 47 57 67 77 87 97 107 117 - 0° 8,47 9,10 10,13 11,43 12,89 13,95 13,95 13,95 13,95 - 30° 7,79 8,49 9,35 10,48 11,75 13,06 13,21 13,21 13,21 - s ta 7,5x75 Rv,k [kN] load-to-grain angle B 45° 7,25 8,00 8,72 9,70 10,82 12,04 12,57 12,57 12,57 - 60° 6,67 7,58 8,19 9,05 10,05 11,14 12,02 12,02 12,02 - 90° 6,14 7,23 7,74 8,50 9,40 10,39 11,40 11,54 11,54 - CORRECTIVE COEFFICIENT kF FOR DIFFERENT DENSITIES ρk Strength class ρk C24 [kg/m3] kF GL22h C30 GL24h C40 / GL32c GL28h D24 D30 350 370 380 385 400 425 485 530 0,91 0,96 0,99 1,00 1,02 1,05 1,12 1,17 For different densities ρk the wood-side design strength is calculated as: R ' V,d = R V,d · kF� EFFECTIVE NUMBER OF DOWELS nef FOR α = 0° a1 [mm] nef n. SBD 40 50 60 70 80 90 100 120 140 2 1,49 1,58 1,65 1,72 3 2,15 2,27 2,38 2,47 1,78 1,83 2,56 2,63 1,88 1,97 2,00 2,70 2,83 2,94 4 2,79 2,95 3,08 3,21 3,31 3,41 3,50 3,67 3,81 5 3,41 3,60 3,77 3,92 4,05 4,17 4,28 4,48 4,66 6 4,01 4,24 4,44 4,62 4,77 4,92 5,05 5,28 5,49 7 4,61 4,88 5,10 5,30 5,48 5,65 5,80 6,07 6,31 In the case of multiple dowels placed parallel to the fibres, the effective number must be taken into account: R ' V,d = R V,d · nef� 52 | SBD | CONCEALED BEAM JOINTS

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