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Permanent link (DOI): https://doi.org/10.7939/R3QM2B

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One-sided Steel Shear Connections in Column Removal Scenario Open Access

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Other title
Subject/Keyword
column removal scenario
steel shear connections
robustness
progressive collapse
steel structures
finite element analysis
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Daneshvar, Hossein
Supervisor and department
Driver, Robert, G.(Civil and Environmental Enginnering)
Examining committee member and department
Chalaturnyk, Rick (Civil and Environmental Enginnering)
Cheng, Roger (Civil and Environmental Enginnering)
Faulkner, Gary (Civil and Environmental Enginnering)
Driver, Robert, G.(Civil and Environmental Enginnering)
El-rich, Marwan (Civil and Environmental Enginnering)
Foley, Christopher (Marquette University- Civil Engineering)
Department
Department of Civil and Environmental Engineering
Specialization
Structural Engineering
Date accepted
2013-08-29T08:38:52Z
Graduation date
2013-11
Degree
Doctor of Philosophy
Degree level
Doctoral
Abstract
There are many design methodologies and philosophies intended to provide structural integrity or increase structural robustness, thereby making structures resistant to progressive collapse. However, there is little information that reveals sources and levels of inherent robustness in structural steel members and systems. The present study seeks to begin the process of behaviour evaluation of components and assemblages initially designed for other purposes than progressive collapse, such as gravity loads, and make recommendations regarding their performance and possible methods for improvements for the new scenario. These recommendations can lead to more economical design and safer structural steel systems in the event of localised damage that has the potential to spread to a disproportionately large part of the structure. Connections play a major role in ensuring general integrity of different types of steel structural systems. Hence, numerical investigations have been performed to extend the current body of knowledge on connections and, consequently, the structural response in the event of progressive collapse. This study is intended to examine the response of steel frames with simple shear connections in the aftermath of unusual and extreme localized loads. The main goal of this research is to evaluate the behaviour of some prevalent and economical one-sided (i.e., connected only on one side of the supported beam web) shear connection types—shear tab, tee (WT), and single angle—in buildings, and perform numerical analyses on those connection configurations under extreme loading scenarios represented generically by the socalled “column removal scenario”. Characteristic features of the connection response, such as the potential to develop a reliable alternative path load through catenary action and ultimate rotational capacities, are discussed to provide a solid foundation for assessing the performance of buildings with these types of connections. Observations regarding the analysis results are synthesized and conclusions are drawn with respect to the demands placed on the connections. The results of this research project should contribute to a better understanding of the resistance of steel structures with one-sided shear connections to progressive collapse.
Language
English
DOI
doi:10.7939/R3QM2B
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication
Daneshvar, H., Oosterhof, S. A., & Driver, R. G. (2012). “Compressive arching and tensile catenary action in steel shear connections under column removal scenario.” Proc., 3rd International Structural Specialty Conferenc, CSCE, Edmonton, AB.

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