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Out-of-Plane Stability of Buckling-Restrained Braces Placed in Chevron Arrangement
| Title: | Out-of-Plane Stability of Buckling-Restrained Braces Placed in Chevron Arrangement |
| Authors: | Hikino, Tsuyoshi Browse this author | | Okazaki, Taichiro Browse this author →KAKEN DB | | Kajiwara, Koichi Browse this author | | Nakashima, Masayoshi Browse this author |
| Keywords: | Shake table tests | | Steel frames | | Seismic design | | Bracing | | Lateral stability |
| Issue Date: | Nov-2013 |
| Publisher: | American Society of Civil Engineers |
| Journal Title: | Journal of Structural Engineering |
| Volume: | 139 |
| Issue: | 11 |
| Start Page: | 1812 |
| End Page: | 1822 |
| Publisher DOI: | 10.1061/(ASCE)ST.1943-541X.0000767 |
| Abstract: | Large-scale shake table tests were performed at E-Defense to examine the out-of-plane stability of buckling-restrained braces (BRBs). Two specimens were subjected repeatedly to a near-fault ground motion with increasing amplification. The test specimens comprised a single-bay, single-story steel frame and a pair of BRBs placed in a chevron arrangement. The specimens were not braced at the brace-to-beam intersection in order to produce a condition where the BRBs were susceptible to out-of-plane instability. Standard BRBs were used in the first specimen, while BRBs with a flexible segment at each end of the steel core were used in the second specimen.Asimple stability model predicted the BRBs in the second specimen to fail because of out-of-plane buckling. The first specimen exhibited excellent ductility during the shake table tests, while the second specimen developed severe out-of-plane deformation that compromised the ductility of the BRBs. Based on the experimental observations and the stability model, a methodology is proposed to evaluate bracing requirements at the brace-to-beam intersection. |
| Rights: | This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/54933 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 岡崎 太一郎
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