Abstract
This paper proposes a new type of buckling-restrained braces with post-tensioned cables (PT-BRB). Such braces enable various hysteresis shapes between bilinear (ȕ=2.0) and flag-shaped (ȕ=1.0) behaviors. After a thorough numerical study for investigating the effect of post-yield stiffness (Į) and energy dissipation (ȕ) ratios, 1/3 scale specimens were tested for confirming expected hystereses. With the experimental data acquired, impact of the hysteresis on seismic response of various types of steel structures with PT-BRBs is sought. Seismic performances of structures equipped with PT-BRBs or conventional BRBs are compared.
Original language | English |
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Pages (from-to) | 1175-1183 |
Number of pages | 9 |
Journal | Journal of Structural and Construction Engineering |
Volume | 85 |
Issue number | 775 |
DOIs | |
Publication status | Published - Sept 2020 |
Bibliographical note
Publisher Copyright:© 2020 Architectural Institute of Japan. All rights reserved.
Keywords
- Buckling restrained brace
- Pin connection
- Residual deformation
- Self-centering
- Space frame
- Truss tower