Eurotec catalogue fastening technology Page 216
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Timber engineering KonstruX with countersunk head and drill point or AG tip 11,3 mm: steel/timber connection Dimensions d1 x L [mm] t [mm] B [mm] Extraction resistance Tension connection Shearing Characteristic value of the joint‘s loadbearing capacity Rax,k acc. to ETA-11/0024 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. to ETA-11/0024 B45° [mm] Rax,k a) - [kN] 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° 11,3 x 300 20 300 220 36,49 35,42 35,42 25,04 25,04 11,79 9,76 11,3 x 340 20 340 240 41,71 40,63 40,63 28,73 28,73 11,79 9,76 11,3 x 380 20 380 260 46,92 45,84 45,84 32,42 32,42 11,79 9,76 11,3 x 420 20 420 300 50,00 50,00 50,00 35,36 35,36 11,79 9,76 11,3 x 460 20 460 320 50,00 50,00 50,00 35,36 35,36 11,79 9,76 11,3 x 500 20 500 360 50,00 50,00 50,00 35,36 35,36 11,79 9,76 11,3 x 540 20 540 380 50,00 50,00 50,00 35,36 35,36 11,79 9,76 11,3 x 580 20 580 420 50,00 50,00 50,00 35,36 35,36 11,79 9,76 11,3 x 620 20 620 440 50,00 50,00 50,00 35,36 35,36 11,79 9,76 11,3 x 660 20 660 460 50,00 50,00 50,00 35,36 35,36 11,79 9,76 11,3 x 700 20 700 500 50,00 50,00 50,00 35,36 35,36 11,79 9,76 11,3 x 750 20 740 540 50,00 50,00 50,00 35,36 35,36 11,79 9,76 11,3 x 800 20 800 560 50,00 50,00 50,00 35,36 35,36 11,79 9,76 11,3 x 900 20 900 640 50,00 50,00 50,00 35,36 35,36 11,79 9,76 11,3 x 1000 20 1000 700 50,00 50,00 50,00 35,36 35,36 11,79 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). 9,76 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. 216
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