详情

原文传递 Gusset Plate Connections for Naturally Buckling Braces

题名：	Gusset Plate Connections for Naturally Buckling Braces
正文语种：	英文
作者：	Hiroyuki Inamasu; Konstantinos A. Skalomenos; Po-Chien Hsiao; Kazuhiro Hayashi; Masahiro Kurata, M.ASCE;Masayoshi Nakashima, M.ASCE
作者单位：	RESSLab, Swiss Federal Institute of Technology, Lausanne (EPFL);Kyoto Univ;National Chung Hsing Univ
关键词：	Steel brace; Low-yielding steel; High-strength steel; Gusset plate; Eccentricity; Metal and composite structures.
摘要：	A naturally buckling brace (NBB) is a steel brace that consists of a high-strength and low-yielding steel channel arranged in parallel with eccentricity acting along the brace length. To enhance the feasibility of NBB fabrication, three connecting design details of the NBB are proposed: (1) gusset plate (GP) connections for connecting the brace to the steel frame; (2) bolting connections to tie the two channels together; and (3) steel block, knife plate, or angle connections to apply eccentricity along the brace length at the NBB ends. Four brace specimens were subjected to cyclic quasi-static loading to evaluate the proposed configurations. Although GPs provided some rotational restraint, the new design maintained all the advantages of the original concept, especially until 2% story drift, whereas rupture of neither the brace nor the GP occurred up to 4% story drift. A simple design equation for estimating the postyielding stiffness is proposed. The #equation is reasonable for the range of slenderness between 40 and 70 and for the ratio of strength between the two channels from 3 to 5. DOI: 10.106l/(ASCE)ST.1943-541X.0001794. © 2017 American Society of Civil Engineers.
出版日期：	2017.08
出版年：	2017
期刊名称：	Journal of Structural Engineering
卷：	Vol.143
期：	NO.08
页码：	04017065