Abstract
Thin-walled box members are susceptible to local buckling threat because the wall plates possess large width/thickness ratios. In order to improve the performance of the member, the deterioration of section integrity must be minimized. In this paper, the authors proposed a simple and effective method to enhance the member's performance by adding internal strengthening braces. Test results of 13 specimens show that the cyclic behavior, particularly energy dissipation, of steel thin-walled box columns with strengthening braces was significantly improved. It was also found that internal braces significantly reduced deterioration in strength after local buckling over bare steel-box section alone. The relationship between performance enhancement of members and stiffness of internal braces is also reported.
Original language | English |
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Pages (from-to) | 241-258 |
Number of pages | 18 |
Journal | Thin-Walled Structures |
Volume | 37 |
Issue number | 3 |
DOIs | |
State | Published - Jul 2000 |