Seismic design criteria for chevron CBFs: Proposals for the next EC8 (part-2)
S Costanzo, M D'Aniello, R Landolfo - Journal of constructional steel …, 2017 - Elsevier
Abstract According to EN 1998-1, chevron concentrically braced frames (C-CBFs) are
expected to provide limited ductility due to the interactions between the braces and
intercepted beam. As a consequence, EN 1998-1 recommends values of the behaviour
factor (namely q= 2 and q= 2.5 in ductility class medium and high, respectively) lower than
that (ie q= 4) given for other concentric bracing configurations, eg both cross and single
diagonal CBFs. The research activity presented in this paper is addressed to revise the …
expected to provide limited ductility due to the interactions between the braces and
intercepted beam. As a consequence, EN 1998-1 recommends values of the behaviour
factor (namely q= 2 and q= 2.5 in ductility class medium and high, respectively) lower than
that (ie q= 4) given for other concentric bracing configurations, eg both cross and single
diagonal CBFs. The research activity presented in this paper is addressed to revise the …