9. CALCULATION EXAMPLES OF LVL STRUCTURES 9.8 LATERALLY LOADED NAIL CONNECTION A canopy over the entrance of a one family house is supported to the external wall by a 51x300 mm LVL 48 P ledger beam. The beam is nailed to the edges of 45 mm thick LVL 32 P wall studs which have spacing s = 600 mm. Line load from own weight gk is 0,3 kN/m and imposed load from snow qk is 3 kN/m. Service class SC2. Loading combinations The most critical ultimate limit state (ULS) load combination for each connection between the beam and stud: Ed,ULS = s ∙ (γG∙gk + γQ∙qk) Ed,ULS = 0,6m ∙ (1,15∙0,3 kN/m + 1,5∙3 kN/m) = 2,91 kN Note: Safety factors γG and γQ are according to Finnish national annex of eurocode 0. Nail properties Size: 3,1x90 mm round nails Tensile strength fu = 600 N/mm2 Modification factor kmod for medium-term, SC2 = 0,8 Material safety factor γM for connections (default value in EC5) = 1,3 LVL Handbook Europe 203
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