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Design of Pre-Tensioned Cable-Stayed Buckling-Restrained Braces Considering Interrelationship between Bracing Strength and Stiffness Requirements
| 题名： | Design of Pre-Tensioned Cable-Stayed Buckling-Restrained Braces Considering Interrelationship between Bracing Strength and Stiffness Requirements |
| 其他题名： | AISC.2016a.Code of standard practice for steel buildings and bridges.AISC 303-16.Chicago:AISC. |
| 正文语种： | 英文 |
| 作者： | Wen-Hao Pan |
| 关键词： | Pre-tensioned cable-stayed buckling-restrained brace (PCS-BRB);Design;Midspan braced column;Adequate bracing;Bracing strength and stiffness requirements;Elastic buckling analysis;Second-order analysis;Restraining ratio |
| 摘要： | The conventional restraining ratio approach is not suitable for a straightforward design of the pre-tensioned cable-stayed bucklingrestrained brace (PCS-BRB) because of its complicated buckling-restrained system. This study uses an adequate bracing approach to establish a more rigorous design procedure for the PCS-BRB by analyzing and designing the PCS-BRB as a braced system; a simplified midspan braced column with translational and rotational springs. Based on the results from an elastic buckling analysis, the influences of the midspan translational and rotational spring stiffnesses on the buckling axial loads associated with symmetric and antisymmetric buckling modes, respectively, are discussed. In a second-order analysis, the solution for the column differential equation of equilibrium is derived considering both symmetric and antisymmetric initial imperfections. The inverse interrelationship between the bracing strength and stiffness requirements is investigated. Then, using the results from these analyses for the midspan braced column, the adequate bracing approach is followed for the design of the PCS-BRB. The strength limits of the cable-stayed system are formulated for its effectiveness, and its adequate stiffness requirements are determined based on examination of these strength limits. A detailed design procedure and an elementary design example are presented. |
| 出版年： | 2018 |
| 论文唯一标识： | P-26Y2018V144N10008 |
| 英文栏目名称： | ANNIVERSARY PAPERS |
| doi： | 10.1061/(ASCE)ST.1943-541X.0002162 |
| 期刊名称： | Journal of Structural Engineering |
| 拼音刊名(出版物代码)： | P-26 |
| 卷： | 144 |
| 期： | 10 |
| 页码： | 78-89 |
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