Rothoblaas - Wood screws and connectors Page 157
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CHARACTERISTIC VALUES EN 1995:2014 SLIDING(5) SHEAR Sg A A CLT - CLT(4) lateral face - narrow face CLT - CLT(4) lateral face - narrow face CLT - CLT(4) lateral face - narrow face CLT - CLT(4) lateral face A A Sg A Sg Sg Sg Sg Sg Sg R1V,k(1) [kN] R2V,k(1) [kN] withdrawal instability 2,4 13,3 40 3,3 13,3 45 45 4,1 13,3 2,5 55 55 4,9 13,3 60 2,9 65 60 5,7 13,3 65 3,3 75 65 6,5 13,3 85 75 3,7 85 75 7,3 13,3 13,3 Sg [mm] A min [mm] RV,k [kN] Sg [mm] A min [mm] RV,k [kN] Sg [mm] A min [mm] RV,k [kN] Sg [mm] A min [mm] 25 40 2,02 25 40 1,32 25 30 1,2 25 30 35 50 2,49 35 50 1,74 35 40 1,6 35 45 60 2,97 45 60 2,01 45 45 2,1 55 70 3,18 55 70 2,30 55 55 65 80 3,38 65 80 2,60 65 75 90 3,59 75 90 2,80 75 85 100 3,79 85 100 2,94 95 110 4,00 95 110 3,07 95 80 4,0 95 80 8,1 105 120 4,10 105 120 3,21 105 90 4,4 105 90 8,8 13,3 115 130 4,10 115 130 3,29 115 95 4,8 115 95 9,6 13,3 125 140 4,10 125 140 3,29 125 100 5,2 125 100 10,3 13,3 135 150 4,10 135 150 3,29 135 110 5,5 135 110 11,1 13,3 155 170 4,10 155 170 3,29 155 125 6,3 155 125 12,6 13,3 175 190 4,10 175 190 3,29 175 140 7,0 175 140 14,0 13,3 65 80 4,81 65 80 3,24 65 60 3,5 65 60 7,0 22,4 22,4 75 90 5,07 75 90 3,59 75 70 4,0 75 70 8,0 85 100 5,34 85 100 3,94 85 75 4,5 85 75 8,9 22,4 95 110 5,60 95 110 4,19 95 80 4,9 95 80 9,9 22,4 105 120 5,86 105 120 4,35 105 90 5,4 105 90 10,8 22,4 115 130 6,13 115 130 4,52 115 95 5,9 115 95 11,7 22,4 125 140 6,20 125 140 4,68 125 105 6,3 125 105 12,7 22,4 135 150 6,20 135 150 4,84 135 110 6,8 135 110 13,6 22,4 145 160 6,20 145 160 4,88 145 115 7,2 145 115 14,5 22,4 155 170 6,20 155 170 4,88 155 125 7,7 155 125 15,4 22,4 165 180 6,20 165 180 4,88 165 130 8,1 165 130 16,2 22,4 175 190 6,20 175 190 4,88 175 140 8,6 175 140 17,1 22,4 185 200 6,20 185 200 4,88 185 145 9,0 185 145 18,0 22,4 205 220 6,20 205 220 4,88 205 160 9,9 205 160 19,7 22,4 225 240 6,20 225 240 4,88 225 175 10,7 225 175 21,5 22,4 245 260 6,20 245 260 4,88 245 190 11,6 245 190 23,2 22,4 110 125 7,86 110 125 5,69 110 95 6,6 110 95 13,2 28,5 28,5 135 150 8,64 135 150 6,17 135 115 8,0 135 115 15,9 160 175 8,64 160 175 6,63 160 130 9,3 160 130 18,6 28,5 185 200 8,64 185 200 6,71 185 150 10,6 185 150 21,1 28,5 210 225 8,64 210 225 6,71 210 165 11,8 210 165 23,7 28,5 235 250 8,64 235 250 6,71 235 185 13,1 235 185 26,2 28,5 260 275 8,64 260 275 6,71 260 200 14,4 260 200 28,7 28,5 285 300 8,64 285 300 6,71 285 220 15,6 285 220 31,2 28,5 GENERAL PRINCIPLES: • Characteristic values comply with the EN 1995:2014 standard and national specification ÖNORM EN 1995 - Annex K in accordance with ETA-11/0030. • For the calculation process a mass density ρk = 350 kg/m3 has been considered for CLT elements. • Design values can be obtained from characteristic values as follows: • Dimensioning and verification of the timber elements must be carried out separately. Rk kmod Rd = γM The coefficients γM and kmod should be taken according to the current regulations used for the calculation. • For the mechanical resistance values and the geometry of the screws, reference was made to ETA-11/0030. • The characteristic shear resistances are calculated for screws inserted without pre-drilling hole. In the case of screws inserted with pre-drilling hole, greater resistance values can be obtained. • The withdrawal, shear and sliding values were calculated considering the centre of gravity of the connector placed in correspondence with the shear plane. • The screws must be positioned in accordance with the minimum distances. STRUCTURES | VGZ | 157
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