文章基本信息

标题：Seismic design and analysis of reinforced concrete buckling-restrained braced frame buildings with multi-performance criteria
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作者：Yanchao Yue ; Tangbing Chen ; Yongtao Bai 等
期刊名称：International Journal of Distributed Sensor Networks
印刷版ISSN：1550-1329
电子版ISSN：1550-1477
出版年度：2019
卷号：15
期号：10
页码：1
DOI：10.1177/1550147719881355
出版社：Hindawi Publishing Corporation
摘要：Buckling-restrained braces play a critical role as the first-defendant line in dissipating seismic energy and are often used in concrete frame structures to ensure that the main beam–column members are “undamaged” or significantly elastic during medium earthquakes. The design of the reinforced concrete frame structures with buckling-restrained brace is generally based on the assumption of shear deformation of the structure. The conventional seismic design considers the “second-defendant line design” based on the geometric relationship between the axial deformation and strength of buckling-restrained braces and stratified deformation. This article proposes iterative optimization of the buckling-restrained brace design method and layout scheme based on the nonlinear structural response of the calibrated numerical model, and then approximates the nonlinear structure scheme using a linear method. Time history analyses are performed to prove that the linear design method is highly conservative for estimating seismic intensity, and the proposed design method provides more efficient damage distributions in frame components. The results of the nonlinear performance evaluation and energy analysis indicate that the method proposed in this article can meet the performance design requirements achieving multi-performance criteria.
关键词：Seismic analysis; performance-based design; buckling-restrained brace; reinforced concrete frame; numerical modeling
其他关键词：Seismic analysis ; performance-based design ; buckling-restrained brace ; reinforced concrete frame ; numerical modeling