Steel Buildings in Europe

Title Appendix B Worked Example: Design of a truss node with gusset 4 of 44 5 - 83 The gusset plane is not positioned symmetrically about the normal OY to the web plane (see Figure B.6 and Figure B.7). The moment resulting from the eccentricity e Z should be taken into account. The moment resulting from the eccentricity e Y = t w /2 can be neglected. Y Z O e Z =30 e Y =7,5/2 O g Y X O O g t w =7,5 t g =15 Figure B.7 Gusset plate to web chord – Details The basic assumption is that gusset plate transfers axial forces acting in its plane and in the direction of the member axes. 2.1. Data Global coordinates system (see Figure B.6 and Figure B.7) The YOZ Plane is that of the gusset plate The XOZ Plane is that of the chord web Geometric data Gusset plate thickness t g = 15 mm Web thickness t w = 7,5 mm Angle between gusset and web  a = 90° Number of fillet welds n a = 2 Effective throat thickness a = Value to be defined Length of welds L w = 560 mm Material data Steel grade: S355 Yield strength: f y = 355 N/mm 2 Ultimate tensile strength: f u = 510 N/mm 2 EN 1993-1-1 Table 3.1 Note: The specified yield strength and ultimate tensile strength of the filler metal are required to be at least equivalent to those specified for the parent material. EN 1993-1-8 4.2(2)