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Analysis and Design of Two-Tiered Steel Braced Frames under In-Plane Seismic Demand
| 题名： | Analysis and Design of Two-Tiered Steel Braced Frames under In-Plane Seismic Demand |
| 其他题名： | Aguero,A.,Izvernari,C.,and Tremblay,R.(2006)."Modelling of the seismic response of concentrically braced steel frames using the OpenSees analysis environment."Int.J.Adv.Steel Constr.,2(3),242–274. |
| 正文语种： | 英文 |
| 作者： | Ali Imanpour |
| 关键词： | Multi-tiered braced frames;Seismic design;Inelastic deformations;Nonlinear analysis;Metal and composite structures |
| 摘要： | A seismic design strategy, which is intended to be implemented within the framework of the U.S. seismic design provisions for steel structures, is presented for single-story steel concentrically braced frames that are divided into two tiers. In this method, the columns are designed to resist the axial loads acting in combination with the in-plane flexural demand resulting from uneven distribution of brace inelastic deformations over the frame height. This design procedure, which establishes enhanced requirements beyond the 2010 edition of the U.S. seismic design provisions, prevents concentration of deformation in one tier and causes frame nonlinear deformation to be distributed between the tiers. The column bending moments depend on the story shear resistance that develops in each tier when the bracing members are at buckling and in the postbuckling range. The method also aims to control tier drifts to protect the bracing members from excessive inelastic demand, which could cause brace fracture. Nonlinear static and dynamic analyses are performed to validate the proposed design procedure. |
| 出版年： | 2016 |
| 论文唯一标识： | P-26Y2016V142N11030 |
| 英文栏目名称： | TECHNICAL PAPERS |
| doi： | 10.1061/(ASCE)ST.1943-541X.0001568 |
| 期刊名称： | Journal of Structural Engineering |
| 拼音刊名(出版物代码)： | P-26 |
| 卷： | 142 |
| 期： | 11 |
| 页码： | 340-352 |
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