Steel Buildings in Europe

Title APPENDIX D Worked Example: Design of portal frame using elastic analysis 9 of 44 4 - 90 7. Summary of member verification The cross-section resistance and the buckling resistance are verified for each member. Sections 7.1and 7.2 provide a summary of the checks carried out for each member of the frame. 7.1. Cross-section verification The resistance of the cross-section has to be verified in accordance with Section 6.2 of EN 1993-1-1. The cross-sectional checks carried out in this worked example are: Shear resistance V Ed  V pl,Rd =   M0 v y 3  A f EN 1993-1-1 §6.2.6 Compression resistance N Ed  N c,Rd = M0 y  A f EN 1993-1-1 §6.2.4 Bending moment resistance M Ed  M pl,y,Rd = M0 pl,y y  W f EN 1993-1-1 §6.2.5 In addition, bending and shear interaction, as well as bending and axial force interaction must be verified. EN 1993-1-1 §6.2.8 §6.2.9 7.2. Buckling verification The rafters and the columns must be verified for out-of-plane buckling between restraints and in plane buckling. The buckling checks due to the interaction of axial force and bending moment are carried out using Expressions 6.61 and 6.62 from EN 1993-1-1. 1, 0 M1 z,Rk z,Ed z,Ed yz M1 y,Rk LT y,Ed y,Ed yy M1 y Rk Ed             M M M k M M M k N N 1, 0 M1 z,Rk z,Ed z,Ed zz M1 y,Rk LT y,Ed y,Ed zy M1 z Rk Ed             M M M k M M M k N N EN 1993-1-1 Expressions (6.61) and (6.62)