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Screw Connection Design for Cold Formed Steel
Review Report Screw Connection Design for Cold Formed Steel


  Combined Shear and Tension 

    Vu / (2.7 t1.d.Fu1) + 0.71 Tu / (1.5 t1.dw.Fu1) = 1.1f     Eq. E4.5.2-1

      fv = 0.65
     t1 - thickness of member in contact with screw head or washer
     dw - larger of screw head diameter or washer diameter
     Fu1 - tensile strength of member in contact with screw head or washer
     Vu - required shear strength
     Tu - required tension strength


  Minimum edge Distance       e >= 1.5 d
 Minimum spacing of screws        s >= 3 d


Connection Strength Tr = kN Vr = kN
CF Steel Fu1 = MPa t1 = mm e = mm Fu2 = MPa t2 = mm tc = mm
mm d= Scew Information Pts = kN Pss = kN d'w= mm