Chevron concentrically braced frames (C-CBFs) are expected to provide limited ductility in the framework of Eurocode 8: differently from North American codes, lower values of behavior factors are recommended by EN 1998 for C-CBFs than for other concentric bracing configurations (namely diagonal and cross bracings). The research presented in this paper is aimed at revising the design rules and requirements provided for by EN 1998-1 for C-CBFs in order to improve the ductility and the dissipative capacity of this structural system. The proposed design criteria are validated by means of nonlinear dynamic analyses performed on a study case. The results confirm the effectiveness of developed design procedure.
Remarks on Seismic Design Rules of EC8 for Inverted-V CBFs / Costanzo, Silvia; D'Aniello, Mario; Landolfo, Raffaele; DE MARTINO, Attilio. - (2018), pp. 1147-1154. (Intervento presentato al convegno Behaviour of Steel Structures in Seismic Areas - 9th STESSA 2018 tenutosi a Christchurch, New Zealand nel February 14-17, 2018) [10.4028/www.scientific.net/KEM.763.1147].
Remarks on Seismic Design Rules of EC8 for Inverted-V CBFs
Costanzo Silvia;D'Aniello Mario
;Landolfo Raffaele;De Martino Attilio
2018
Abstract
Chevron concentrically braced frames (C-CBFs) are expected to provide limited ductility in the framework of Eurocode 8: differently from North American codes, lower values of behavior factors are recommended by EN 1998 for C-CBFs than for other concentric bracing configurations (namely diagonal and cross bracings). The research presented in this paper is aimed at revising the design rules and requirements provided for by EN 1998-1 for C-CBFs in order to improve the ductility and the dissipative capacity of this structural system. The proposed design criteria are validated by means of nonlinear dynamic analyses performed on a study case. The results confirm the effectiveness of developed design procedure.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
