The design of beam-to-column joints for seismic applications is not properly addressed in current version of Eurocodes. EN 1998-1 allows using dissipative beam-to-column joints in seismic resistant steel frames. However, due to the lack of analytical tools able to predict the seismic performance of such connections the EN 1998-1 prescribes design supported by testing, resulting in an expensive and time-consuming approach. On the other hand, also for full-strength joints reliable design tools are necessary because, owing to the variability of steel strength, these connections could not have enough overstrength and the plastic rotation capacity of the joint assembly must be prequalified by relevant tests. In order to overcome such limitations, the aim of Equaljoints project was to develop a prequalification procedure for typical joints used in the EU practice, on the basis of experimental, numerical and analytical investigations. Design tools and prequalification charts are provided, including general requirements, limitations, step-by-step design procedure and qualification data.
The EQUALJOINTS project: European pre-qualification of steel joints / Landolfo, Raffaele. - (2017). (Intervento presentato al convegno 9th Hellenic Conference of Steel Structures tenutosi a Larisa (Greece) nel 5-7 October 2017).
The EQUALJOINTS project: European pre-qualification of steel joints
LANDOLFO, RAFFAELE
2017
Abstract
The design of beam-to-column joints for seismic applications is not properly addressed in current version of Eurocodes. EN 1998-1 allows using dissipative beam-to-column joints in seismic resistant steel frames. However, due to the lack of analytical tools able to predict the seismic performance of such connections the EN 1998-1 prescribes design supported by testing, resulting in an expensive and time-consuming approach. On the other hand, also for full-strength joints reliable design tools are necessary because, owing to the variability of steel strength, these connections could not have enough overstrength and the plastic rotation capacity of the joint assembly must be prequalified by relevant tests. In order to overcome such limitations, the aim of Equaljoints project was to develop a prequalification procedure for typical joints used in the EU practice, on the basis of experimental, numerical and analytical investigations. Design tools and prequalification charts are provided, including general requirements, limitations, step-by-step design procedure and qualification data.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
