Eurotec catalogue fastening technology Pagina 213
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Timber engineering KonstruX with countersunk head and drill point or AG tip 11,3 mm: timber/timber connection Dimensions d1 x L [mm] A [mm] B [mm] Extraction resistance Shearing Characteristic value of the joint‘s loadbearing capacity Rax,k acc. to ETA-11/0024 Characteristic value of the joint‘s loadbearing capacity Rk acc. to ETA-11/0024 Rax,k a) - [kN] Rk a) - [kN] Rk a) - [kN] Rk a) - [kN] Rk a) - [kN] α= 0° α= 90° αA= 0° αB= 90° αA= 90° αB= 0° 11,3 x 300 160 160 18,25 12,17 10,73 10,73 12,17 11,3 x 340 180 180 20,85 12,82 11,38 11,38 12,82 11,3 x 380 200 200 23,46 13,47 12,03 12,03 13,47 11,3 x 420 220 220 26,07 14,12 12,34 12,34 14,12 11,3 x 460 240 240 26,67 14,77 12,34 12,34 14,77 11,3 x 500 260 260 31,28 15,21 12,34 12,34 15,21 11,3 x 540 280 280 33,89 15,21 12,34 12,34 15,21 11,3 x 580 300 300 36,49 15,21 12,34 12,34 15,21 11,3 x 620 320 320 39,10 15,21 12,34 12,34 15,21 11,3 x 660 340 340 41,71 15,21 12,34 12,34 15,21 11,3 x 700 360 360 44,32 15,21 12,34 12,34 15,21 11,3 x 750 380 380 48,23 15,21 12,34 12,34 15,21 11,3 x 800 400 420 50,00 15,21 12,34 15,21 12,34 11,3 x 900 460 460 50,00 15,21 12,34 12,34 15,21 11,3 x 1000 500 520 50,00 15,21 12,34 15,21 12,34 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). 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. 213
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