2010•Journal of Lanzhou University of TechnologyRequires access
Nonlinear analysis model SAP2000 for eccentrically braced steel frames with Y-links
Wenxia Yang
Open publisher page 1 citations
Abstract
In order to investigate elastic-plastic performance of eccentrically braced steel frames,the definition method of independent shear-link parameter in energy dissipative beam segment consistent with National Anti-seismic standards was presented and an analysis model SAP2000 of nonlinear plastic links in eccentrically braced steel frames with Y-links was set up according to force-recovering characteristics of shear energy dissipative beam segment and mechanical performance of steel frames.The reasonability of this model was proved by means of comparison between the skeleton curve and PUSHOVER curve of finite element analysis of three model samples under cyclic load.The result showed that the improved model of plastic links presented in this paper could more reasonably reflect the nonlinear performance of the eccentrically braced steel framed construction with Y-links.