Evaluation of Resilience in Displacement Restrain Brace with initial story stiffness and Buckling Restrained Brace
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Bibliographic Details
| Author(s): |
Akine Otani
(Tokyo Denki University, Tokyo, Japan, Graduate Student)
Takeshi Asakawa (Tokyo Denki University, Tokyo, Japan) Haruki Yokoyama (Tokyo Denki University, Tokyo, Japan) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Construction’s Role for a World in Emergency, Manchester, United Kingdom, 10-14 April 2024 | ||||
| Published in: | IABSE Symposium Manchester 2024 | ||||
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| Page(s): | 896-903 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/manchester.2024.0896 | ||||
| Abstract: |
Setting prestress disc springs at the end of the PC steel bar of DRB (Displacement Restrain PC steel bar Brace) can provide “initial story stiffness” to the brace before the story displacement reaches the “initial story displacement”. This system with disc springs is called DRBS. We evaluated its resilience using time history response analysis under a large-scale earthquake by 10 story-mass system model. In addition, we were shown that the result of summarizing the results of story deformation angles, residual deformations, floor response accelerations, and floor response velocities. Then, the influence in non-structural elements was described as horizontal displacement by the relationship between floor response accelerations and floor response velocities. |
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| Keywords: |
residual deformation time-history response analysis story deformation angle non-structural element non-structural elements Horizontal displacement disc spring displacement restrain PC steel bar brace mass system model floor response acceleration floor response velocity
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