Development of a simplified model for joints in steel structures

Authors: F. Gentili, R. Costa, L. Simões da Silva

ABSTRACT:

The global behaviour of a framed structure is strongly influenced by the behaviour of the beam-to-column joints. The component method coded in Eurocode 3 allows to characterize the moment-rotation curve of semi-rigid beam-column joints. However, the rigorous application of this method requires a distinction to be made between separate sources of deformability of joints: those in the connection and those in the column web panel. This paper deals with the formulation of a simplified mechanical model composed of extensional springs and rigid links able to cover beam-to-column joints with different beam depths. These models may be used for the interpretation of experimental test and for the formulation of a beam-to-column joint finite element that accurately accounts for its behaviour in global frame analysis.

Key Words:
Affiliation:

F. Gentili1 | R. Costa2 | L. Simões da Silva1
1Departamento de Engenharia Civil, ISISE, Universidade de Coimbra
2Departamento de Engenharia Civil, Universidade de Coimbra