Macro-element model of a steel moment frame subjected to fire-induced column loss

Ha Nguyen; Ann E. Jeffers; Venkatesh Kodur

doi:10.14311/asfe.2015.007

Macro-element model of a steel moment frame subjected to fire-induced column loss

Ha Nguyen, Ann E. Jeffers, Venkatesh Kodur

Department of Architectural & Urban Systems Engineering

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

Abstract

A progressive collapse mitigation strategy is to ensure load redistribution when a column fails due to fire. The study seeks to understand whether welded unreinforced flange-bolted web (WUF-B) moment connections can effectively redistribute loads in a structural system subjected to fire when a critical column is lost. A component (or macro-element) model was derived to simulate the WUF-B connection and validated against experimental tests and high-resolution finite element (FE) models of subassemblies at room temperature and at elevated temperature. The component model was then utilized in a 2D macro FE model of a ten-story steel-framed building subjected to the loss of a column during long fire exposure. This paper presents the collapse mechanisms and quantifies structural performance based on acceptance criteria. A parametric study on location of column loss and fire occurrence is also included.

Original language	English
Title of host publication	Proceedings of the International Conference on Applications of Structural Fire Engineering, ASFE 2015
Editors	Frantisek Wald, D. Bjegovic, K. Horova, Ian Burgess, M. Jelcic Rukavina
Publisher	Czech Technical University in Prague
ISBN (Electronic)	9788001061947
DOIs	https://doi.org/10.14311/asfe.2015.007
State	Published - 2017
Event	2015 International Conference on Applications of Structural Fire Engineering, ASFE 2015 - Dubrovnik, Croatia Duration: 15 Oct 2015 → 16 Oct 2015

Publication series

Name	Applications of Structural Fire Engineering
ISSN (Print)	2336-7318

Conference

Conference	2015 International Conference on Applications of Structural Fire Engineering, ASFE 2015
Country/Territory	Croatia
City	Dubrovnik
Period	15/10/15 → 16/10/15

Keywords

Column loss
Fire
Macro-element
Moment frame
Steel

Access to Document

10.14311/asfe.2015.007

Cite this

Nguyen, H., Jeffers, A. E., & Kodur, V. (2017). Macro-element model of a steel moment frame subjected to fire-induced column loss. In F. Wald, D. Bjegovic, K. Horova, I. Burgess, & M. Jelcic Rukavina (Eds.), Proceedings of the International Conference on Applications of Structural Fire Engineering, ASFE 2015 (Applications of Structural Fire Engineering). Czech Technical University in Prague. https://doi.org/10.14311/asfe.2015.007

Nguyen, Ha ; Jeffers, Ann E. ; Kodur, Venkatesh. / Macro-element model of a steel moment frame subjected to fire-induced column loss. Proceedings of the International Conference on Applications of Structural Fire Engineering, ASFE 2015. editor / Frantisek Wald ; D. Bjegovic ; K. Horova ; Ian Burgess ; M. Jelcic Rukavina. Czech Technical University in Prague, 2017. (Applications of Structural Fire Engineering).

@inproceedings{bbf42687f0f94947bb0fd83ec55c18bd,

title = "Macro-element model of a steel moment frame subjected to fire-induced column loss",

abstract = "A progressive collapse mitigation strategy is to ensure load redistribution when a column fails due to fire. The study seeks to understand whether welded unreinforced flange-bolted web (WUF-B) moment connections can effectively redistribute loads in a structural system subjected to fire when a critical column is lost. A component (or macro-element) model was derived to simulate the WUF-B connection and validated against experimental tests and high-resolution finite element (FE) models of subassemblies at room temperature and at elevated temperature. The component model was then utilized in a 2D macro FE model of a ten-story steel-framed building subjected to the loss of a column during long fire exposure. This paper presents the collapse mechanisms and quantifies structural performance based on acceptance criteria. A parametric study on location of column loss and fire occurrence is also included.",

keywords = "Column loss, Fire, Macro-element, Moment frame, Steel",

author = "Ha Nguyen and Jeffers, {Ann E.} and Venkatesh Kodur",

year = "2017",

doi = "10.14311/asfe.2015.007",

language = "English",

series = "Applications of Structural Fire Engineering",

publisher = "Czech Technical University in Prague",

editor = "Frantisek Wald and D. Bjegovic and K. Horova and Ian Burgess and {Jelcic Rukavina}, M.",

booktitle = "Proceedings of the International Conference on Applications of Structural Fire Engineering, ASFE 2015",

note = "2015 International Conference on Applications of Structural Fire Engineering, ASFE 2015 ; Conference date: 15-10-2015 Through 16-10-2015",

}

Nguyen, H, Jeffers, AE & Kodur, V 2017, Macro-element model of a steel moment frame subjected to fire-induced column loss. in F Wald, D Bjegovic, K Horova, I Burgess & M Jelcic Rukavina (eds), Proceedings of the International Conference on Applications of Structural Fire Engineering, ASFE 2015. Applications of Structural Fire Engineering, Czech Technical University in Prague, 2015 International Conference on Applications of Structural Fire Engineering, ASFE 2015, Dubrovnik, Croatia, 15/10/15. https://doi.org/10.14311/asfe.2015.007

Macro-element model of a steel moment frame subjected to fire-induced column loss. / Nguyen, Ha; Jeffers, Ann E.; Kodur, Venkatesh.
Proceedings of the International Conference on Applications of Structural Fire Engineering, ASFE 2015. ed. / Frantisek Wald; D. Bjegovic; K. Horova; Ian Burgess; M. Jelcic Rukavina. Czech Technical University in Prague, 2017. (Applications of Structural Fire Engineering).

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

TY - GEN

T1 - Macro-element model of a steel moment frame subjected to fire-induced column loss

AU - Nguyen, Ha

AU - Jeffers, Ann E.

AU - Kodur, Venkatesh

PY - 2017

Y1 - 2017

N2 - A progressive collapse mitigation strategy is to ensure load redistribution when a column fails due to fire. The study seeks to understand whether welded unreinforced flange-bolted web (WUF-B) moment connections can effectively redistribute loads in a structural system subjected to fire when a critical column is lost. A component (or macro-element) model was derived to simulate the WUF-B connection and validated against experimental tests and high-resolution finite element (FE) models of subassemblies at room temperature and at elevated temperature. The component model was then utilized in a 2D macro FE model of a ten-story steel-framed building subjected to the loss of a column during long fire exposure. This paper presents the collapse mechanisms and quantifies structural performance based on acceptance criteria. A parametric study on location of column loss and fire occurrence is also included.

AB - A progressive collapse mitigation strategy is to ensure load redistribution when a column fails due to fire. The study seeks to understand whether welded unreinforced flange-bolted web (WUF-B) moment connections can effectively redistribute loads in a structural system subjected to fire when a critical column is lost. A component (or macro-element) model was derived to simulate the WUF-B connection and validated against experimental tests and high-resolution finite element (FE) models of subassemblies at room temperature and at elevated temperature. The component model was then utilized in a 2D macro FE model of a ten-story steel-framed building subjected to the loss of a column during long fire exposure. This paper presents the collapse mechanisms and quantifies structural performance based on acceptance criteria. A parametric study on location of column loss and fire occurrence is also included.

KW - Column loss

KW - Fire

KW - Macro-element

KW - Moment frame

KW - Steel

UR - http://www.scopus.com/inward/record.url?scp=85029916860&partnerID=8YFLogxK

U2 - 10.14311/asfe.2015.007

DO - 10.14311/asfe.2015.007

M3 - Conference contribution

AN - SCOPUS:85029916860

T3 - Applications of Structural Fire Engineering

BT - Proceedings of the International Conference on Applications of Structural Fire Engineering, ASFE 2015

A2 - Wald, Frantisek

A2 - Bjegovic, D.

A2 - Horova, K.

A2 - Burgess, Ian

A2 - Jelcic Rukavina, M.

PB - Czech Technical University in Prague

T2 - 2015 International Conference on Applications of Structural Fire Engineering, ASFE 2015

Y2 - 15 October 2015 through 16 October 2015

ER -

Nguyen H, Jeffers AE, Kodur V. Macro-element model of a steel moment frame subjected to fire-induced column loss. In Wald F, Bjegovic D, Horova K, Burgess I, Jelcic Rukavina M, editors, Proceedings of the International Conference on Applications of Structural Fire Engineering, ASFE 2015. Czech Technical University in Prague. 2017. (Applications of Structural Fire Engineering). doi: 10.14311/asfe.2015.007

Macro-element model of a steel moment frame subjected to fire-induced column loss

Abstract

Publication series

Conference

Keywords

Access to Document

Fingerprint

Cite this