RESEARCH ARTICLE
Study of Adding Cover—Plate Used For the Single Diagonal Eccentrically Braced Steel Frames
Xiuzhen Pan*, 1, Jiping Hao2, Jie Gao3
Article Information
Identifiers and Pagination:
Year: 2011Volume: 5
First Page: 143
Last Page: 153
Publisher ID: TOCIEJ-5-143
DOI: 10.2174/1874149501105010143
Article History:
Received Date: 20/7/2010Revision Received Date: 9/1/2011
Acceptance Date: 23/1/2011
Electronic publication date: 15/6/2011
Collection year: 2011
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
This paper suggested a new connection protocol, adding cover-plate between shear links and column, which was used to enhance moment and shear carrying capacity of beam, relax the restriction and assure the sufficiency development of plastic deformation of the link, and dissipate more earthquake energy. Considering the scale ratio of 1:3, the experimental data was achieved by a specimen under cyclic loading, which was verified by nonlinear finite element analyses. Results indicated that the new type of eccentrically braced steel frame has enough stiffness and deformation capacity, draws link away from flange of column, and dissipates more earthquake energy. The single diagonal eccentrically braced frames adopted adding cover-plate protocol would ensure sufficient lateral stiffness under ordinary circumstances, including lateral loads due to wind and moderate seismic disturbances, have preferable resisting seismic behavior under rare earthquake, and be so practical and costly that they could be easily applied in the present project. Some factors which affect resisting seismic behavior were the thickness of the connection-plate between beam and column, adding stiffeners, and the decrease in the length of A segment etc.
