Evaluation of Resilience in Displacement Restrain Brace with initial story stiffness and Buckling Restrained Brace-Reference-Cited by-同舟云学术

Evaluation of Resilience in Displacement Restrain Brace with initial story stiffness and Buckling Restrained Brace

Published:2024 Issue: Volume:120 Page:896-903
ISSN:2221-3783
Container-title:IABSE Reports
language:
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Author:

Otani Akine¹,Asakawa Takeshi²,Yokoyama Haruki²

Affiliation:

1. Tokyo Denki University, Tokyo, Japan, Graduate Student

2. Tokyo Denki University, Tokyo, Japan

Abstract

<p>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.</p>

Publisher

International Association for Bridge and Structural Engineering (IABSE)

Reference8 articles.

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3. Otani A., Asakawa T., Yokoyama H., and Yamakawa M. Response Control Design of Displacement Restrain Braces with Initial Stiffness and Buckling Restrained Brace withParametric Studies. AIJ. Eng.1. 2023; pp295-296. (in Japanese)

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