Nowadays, moment-resisting steel frames are one of the most attractive typologies of structural systems resisting to earthquakes. According to the Eurocode for seismic design (EC8) four alternatives can be used, that differ in the type of seismic analysis and for the verification approaches. A research project is in progress at the Politecnico di Milano on the investigation of these seismic design methods. At first, this paper briefly discusses these approaches. Then attention is focused on a case-study, a one-bay four-stories rigid frame for which nine different seismic inputs have been defined. For each of them, the four admitted methods of seismic analysis are applied. The research outcomes underline nonnegligible differences from a structural point of view, suggesting the need of a deeper investigation of the range of applicability of the single methods.

REMARKS ON THE APPROACHES FOR SEISMIC DESIGN OF MOMENT-RESISTING STEEL FRAMES

claudio bernuzzi;claudio chesi;davide rodigari;riccardo de col
2018-01-01

Abstract

Nowadays, moment-resisting steel frames are one of the most attractive typologies of structural systems resisting to earthquakes. According to the Eurocode for seismic design (EC8) four alternatives can be used, that differ in the type of seismic analysis and for the verification approaches. A research project is in progress at the Politecnico di Milano on the investigation of these seismic design methods. At first, this paper briefly discusses these approaches. Then attention is focused on a case-study, a one-bay four-stories rigid frame for which nine different seismic inputs have been defined. For each of them, the four admitted methods of seismic analysis are applied. The research outcomes underline nonnegligible differences from a structural point of view, suggesting the need of a deeper investigation of the range of applicability of the single methods.
2018
Eurocode 8, Moment Resisting Steel Frames, Seismic Analysis, Capacity Design, Behaviour Factor
File in questo prodotto:
File Dimensione Formato  
Bernuzzi et al.pdf

Accesso riservato

: Publisher’s version
Dimensione 517.14 kB
Formato Adobe PDF
517.14 kB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1055385
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 16
  • ???jsp.display-item.citation.isi??? 11
social impact