题名: |
Design and Full-Scale Testing of a Cast Steel Yielding Brace System in a Braced Frame |
正文语种: |
英文 |
作者: |
Michael G. Gray, Ph.D., P.Eng.; Constantin Christopoulos, Ph.D., P.Eng.;Jeffrey A. Packer, Ph.D., P.Eng., D.Sc., F.ASCE |
作者单位: |
Cast Connex Corporation;Univ, of Toronto |
关键词: |
Cast steel; Concentrically braced frame; Brace connector; Seismic; Yielding brace system; Yielding fingers; Energy dissipation; Buckling restrained brace; Cyclic inelastic loading; Seismic effects. |
摘要: |
The yielding brace system (YBS) is a seismic-resista nt concentrically braced frame system that provides a fully symmetric hys-teretic response via flexural yielding of cast steel triangular yielding fingers of a specially designed yielding connect〇r. The behavior of the system is first reviewed, and a detailed discussion of the limit states design of a YBS braced frame is presented. Results of two full-scale yielding connector prototype tests, conducted in a braced frame configuration, are then presented. The test specimens were subjected to several quasi-static and dynamic load cycles, up to axial brace deformations of 120 mm (3.8% interstory drift). The proposed design limit states were validated through full-scale testing and the performance of a YBS yielding connector brace assembly in a typical braced frame with a bolted brace-to-gusset connection was demonstrated to be very similar to the performance of YBS yielding connectors tested in a purely axial configuration. DOI: 10.106l/(ASCE)ST.1943-541X.0001692. © 2016 American Society of Civil Engineers. |
出版日期: |
2017.04 |
出版年: |
2017 |
期刊名称: |
Journal of Structural Engineering |
卷: |
Vol.143 |
期: |
NO.04 |
页码: |
04016210 |