Eurotec catalogue fastening technology Page 215
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Timber engineering KonstruX ST with countersunk head and drill point 6,5 to 10,0 mm: steel/timber joints Dimensions Extraction resistance Tension connection Characteristic value of the joint‘s loadbearing capacity Rax,k acc. to ETA-11/0024 d1 x L [mm] t [mm] B [mm] B45° [mm] Rax,k a) - [kN] Shearing Characteristic value of the joint‘s loadbearing capacity Rax,k bzw. Rk acc. to ETA-11/0024 Characteristic value of the joint‘s loadbearing capacity Rk acc. toETA-11/0024 Rax,k a) - [kN] Rax,k a) - [kN] Rk a) - [kN] Rk a) - [kN] Rk a) - [kN] Rk a) - [kN] α= 45° α=90° α= 45° α= 90° α= 0° α= 90° 6,5 x 80 15 80 60 5,14 4,65 4,65 3,29 3,29 4,17 6,5 x 100 15 100 80 6,73 6,24 6,24 4,41 4,41 4,17 6,5 x 120 15 120 80 8,31 7,82 7,82 5,53 5,53 4,17 6,5 x 140 15 140 100 9,89 9,40 9,40 6,65 6,65 4,17 8,0 x 95 15 100 80 7,59 7,00 7,00 4,95 4,95 6,18 8,0 x 125 15 120 100 10,43 9,84 9,84 6,96 6,96 6,18 8,0 x 155 15 160 120 13,28 12,69 12,69 8,97 8,97 6,18 8,0 x 195 15 200 140 17,07 16,48 16,48 11,65 11,65 6,18 8,0 x 220 15 220 160 19,44 18,85 18,85 13,33 13,33 6,18 8,0 x 245 15 240 180 21,81 21,22 21,22 15,01 15,01 6,18 8,0 x 270 15 280 200 24,18 23,59 23,59 16,68 16,68 6,18 8,0 x 295 15 300 220 25,00 25,00 25,00 17,68 17,68 6,18 8,0 x 330 15 340 240 25,00 25,00 25,00 17,68 17,68 6,18 8,0 x 375 15 380 280 25,00 25,00 25,00 17,68 17,68 6,18 8,0 x 400 15 400 280 25,00 25,00 25,00 17,68 17,68 6,18 8,0 x 430 15 440 300 25,00 25,00 25,00 17,68 17,68 6,18 8,0 x 480 15 480 340 25,00 25,00 25,00 17,68 17,68 6,18 10,0 x 125 15 120 100 12,69 11,97 11,97 8,46 8,46 8,72 10,0 x 155 15 160 120 16,15 15,43 15,43 10,91 10,91 8,72 10,0 x 195 15 200 140 20,76 20,05 20,05 14,17 14,17 8,72 10,0 x 220 15 220 160 23,65 22,93 22,93 16,21 16,21 8,72 10,0 x 245 15 240 180 26,53 25,81 25,81 18,25 18,25 8,72 10,0 x 270 15 280 200 29,41 28,70 28,70 20,29 20,29 8,72 10,0 x 300 15 300 220 32,87 32,16 32,16 22,74 22,74 8,72 10,0 x 330 15 340 240 33,00 33,00 33,00 23,33 23,33 8,72 10,0 x 360 15 360 260 33,00 33,00 33,00 23,33 23,33 8,72 10,0 x 400 15 400 280 33,00 33,00 33,00 23,33 23,33 8,72 10,0 x 450 15 460 320 33,00 33,00 33,00 23,33 23,33 8,72 10,0 x 500 15 500 360 33,00 33,00 33,00 23,33 23,33 8,72 10,0 x 550 15 560 400 33,00 33,00 33,00 23,33 23,33 8,72 10,0 x 600 15 600 420 33,00 33,00 33,00 23,33 23,33 8,72 Calculation according to ETA-11/0024. Wood density ρk= 380 kg/m³. All mechanical values provided should be viewed as subject to the assumptions that have been made and represent example calculations. All values are calculated minimum values and are subject to typographical and printing errors. a) The characteristic values of the load-bearing capacity Rk cannot be treated as equivalent to the max. possible load (the max. force). Characteristic values of the load-bearing capacity Rk should be reduced to dimensioning values Rd with regard to the usage class and class of the load duration: Rd= Rk · kmod / γM. The dimensioning values of the load-bearing capacity Rd should be contrasted with the dimensioning values of the loads (Rd ≥ Ed). 3,52 3,52 3,52 3,52 5,22 5,22 5,22 5,22 5,22 5,22 5,22 5,22 5,22 5,22 5,22 5,22 5,22 7,30 7,30 7,30 7,30 7,30 7,30 7,30 7,30 7,30 7,30 7,30 7,30 7,30 7,30 Example: Characteristic value for constant load (dead weight) Gk= 2,00 kN and variable load (e. g. snow load) Qk= 3,00 kN. kmod= 0,9. γM= 1,3. → Dimensioning value of the load Ed= 2,00 · 1,35 + 3,00 · 1,5= 7,20 kN. The load-bearing capacity of the joint is therefore considered to have been demonstrated if Rd ≥ Ed. → min Rk= Rd · γM / kmod . i.e. the characteristic minimum value is calculated based on: min Rk= Rd · γM / kmod → Rk= 7,20 kN · 1,3/0,9= 10,40 kN → comparison with table values. Please note: These are planning aids. Projects must only be calculated by authorised persons. 215
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