Determination of Displacement Amplification Factors for Chevron BRBFs

Bozkurt, Mehmet Bakır
Özkılıç, Yasin Onuralp
Topkaya, Cem
Buckling restrained braced frames (BRBFs) can be used as a lateral load resisting system in high seismic regions. In the United States it is necessary to comply with the requirements defined in the Seismic Provisions for Structural Steel Buildings (AISC341- 10) for the design and production of BRBs. In addition, response factors defined in Minimum Design Loads for Buildings and Other Structures (ASCE 7-10) should be utilized. In this study, deflection amplification factor (Cd) is evaluated. Pursuant to this goal, three archetypes composed of chevron BRBFs were designed as per ASCE7-10 and AISC 341-10. Elastic and inelastic time history analyses of these archetypes were carried out. The archetypes were subjected to maximum considered earthquake ground motions by using 44 far-field records. Cd factor for BRBFs were obtained from analysis results and compared with the codified value. According to the results, the lower stories experience larger displacements and the upper stories experience lower displacements when compared with code estimates.
9th Hellenic Conference of Steel Structures


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Citation Formats
M. B. Bozkurt, Y. O. Özkılıç, and C. Topkaya, “Determination of Displacement Amplification Factors for Chevron BRBFs,” presented at the 9th Hellenic Conference of Steel Structures, 2017, Accessed: 00, 2021. [Online]. Available: