Axial Load Effects on the Response of Yielding Links in Eccentrically Braced Frames

Pedram Mortazavi; Oh Sung Kwon; Constantin Christopoulos

doi:10.1007/978-3-031-62884-9_66

Axial Load Effects on the Response of Yielding Links in Eccentrically Braced Frames

Pedram Mortazavi, Oh Sung Kwon, Constantin Christopoulos

Civil, Environmental, and Geo- Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Previous studies have shown that yielding links in eccentrically braced frames (EBFs) may be subjected to axial loads during their response. Axial tension increases the strength of yielding links, while axial compression reduces their shear force capacity. This paper provides a brief review of past research on EBFs and different types of commonly used yielding links in EBFs. The mechanisms through which axial loads are imposed on yielding links in EBFs are discussed. A set of simplified equations based on the mechanics of the yielding links are proposed for predicting the increase or decrease in the link’s shear force under axial loads. Comparison between results from the proposed equations with past experimental results and results from additional finite element analyses (FEAs) demonstrate the enhanced accuracy of the proposed equations. The effects of axial loads on the ultra-low-cycle fatigue life of yielding links are also discussed. Lastly, the effects of axial loads in yielding links on the global response of EBFs is presented. In the end, a set of guidelines is provided for considering the effects of axial loads on yielding links in the design of EBFs.

Original language	English (US)
Title of host publication	Proceedings of the 11th International Conference on Behaviour of Steel Structures in Seismic Areas - STESSA 2024 - Volume 1
Editors	Federico M. Mazzolani, Vincenzo Piluso, Elide Nastri, Antonio Formisano
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	756-768
Number of pages	13
ISBN (Print)	9783031628832
DOIs	https://doi.org/10.1007/978-3-031-62884-9_66
State	Published - 2024
Event	11th International Conference on the Behaviour of Steel Structures in Seismic Areas, STESSA 2024 - Salerno, Italy Duration: Jul 8 2024 → Jul 10 2024

Publication series

Name	Lecture Notes in Civil Engineering
Volume	519 LNCE
ISSN (Print)	2366-2557
ISSN (Electronic)	2366-2565

Conference

Conference	11th International Conference on the Behaviour of Steel Structures in Seismic Areas, STESSA 2024
Country/Territory	Italy
City	Salerno
Period	7/8/24 → 7/10/24

Bibliographical note

Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

Keywords

Axial Loading
Eccentrically Braced Frames
Seismic Fuse
Seismic Performance
Yielding Links

Publisher link

10.1007/978-3-031-62884-9_66

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Mortazavi, P., Kwon, O. S., & Christopoulos, C. (2024). Axial Load Effects on the Response of Yielding Links in Eccentrically Braced Frames. In F. M. Mazzolani, V. Piluso, E. Nastri, & A. Formisano (Eds.), Proceedings of the 11th International Conference on Behaviour of Steel Structures in Seismic Areas - STESSA 2024 - Volume 1 (pp. 756-768). (Lecture Notes in Civil Engineering; Vol. 519 LNCE). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-3-031-62884-9_66

Axial Load Effects on the Response of Yielding Links in Eccentrically Braced Frames. / Mortazavi, Pedram; Kwon, Oh Sung; Christopoulos, Constantin.
Proceedings of the 11th International Conference on Behaviour of Steel Structures in Seismic Areas - STESSA 2024 - Volume 1. ed. / Federico M. Mazzolani; Vincenzo Piluso; Elide Nastri; Antonio Formisano. Springer Science and Business Media Deutschland GmbH, 2024. p. 756-768 (Lecture Notes in Civil Engineering; Vol. 519 LNCE).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Mortazavi, P, Kwon, OS & Christopoulos, C 2024, Axial Load Effects on the Response of Yielding Links in Eccentrically Braced Frames. in FM Mazzolani, V Piluso, E Nastri & A Formisano (eds), Proceedings of the 11th International Conference on Behaviour of Steel Structures in Seismic Areas - STESSA 2024 - Volume 1. Lecture Notes in Civil Engineering, vol. 519 LNCE, Springer Science and Business Media Deutschland GmbH, pp. 756-768, 11th International Conference on the Behaviour of Steel Structures in Seismic Areas, STESSA 2024, Salerno, Italy, 7/8/24. https://doi.org/10.1007/978-3-031-62884-9_66

Mortazavi P, Kwon OS, Christopoulos C. Axial Load Effects on the Response of Yielding Links in Eccentrically Braced Frames. In Mazzolani FM, Piluso V, Nastri E, Formisano A, editors, Proceedings of the 11th International Conference on Behaviour of Steel Structures in Seismic Areas - STESSA 2024 - Volume 1. Springer Science and Business Media Deutschland GmbH. 2024. p. 756-768. (Lecture Notes in Civil Engineering). doi: 10.1007/978-3-031-62884-9_66

Mortazavi, Pedram ; Kwon, Oh Sung ; Christopoulos, Constantin. / Axial Load Effects on the Response of Yielding Links in Eccentrically Braced Frames. Proceedings of the 11th International Conference on Behaviour of Steel Structures in Seismic Areas - STESSA 2024 - Volume 1. editor / Federico M. Mazzolani ; Vincenzo Piluso ; Elide Nastri ; Antonio Formisano. Springer Science and Business Media Deutschland GmbH, 2024. pp. 756-768 (Lecture Notes in Civil Engineering).

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Axial Load Effects on the Response of Yielding Links in Eccentrically Braced Frames

Abstract

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