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Publication Citation: Robustness of Prototype Steel Frame Buildings against Column Loss: Assessment and Comparisons

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Author(s): Joseph A. Main; Judy Liu;
Title: Robustness of Prototype Steel Frame Buildings against Column Loss: Assessment and Comparisons
Published: May 02, 2013
Abstract: This paper considers the robustness of prototype 10-story steel moment-frame and braced-frame buildings. Reduced modeling approaches are presented for steel moment-frame and braced-frame buildings with composite floor slabs, and these approaches are used to analyze the nonlinear system behavior of these types of structures under column loss scenarios. The three-dimensional reduced structural models include the composite floor slab and incorporate assemblies of nonlinear spring elements to represent the beam-to-column connections. For the braced-frame buildings, modeling of the buckling behavior of braces incorporates nonlinear rotational springs representing the out-of-plane behavior of the gusset-plate connections. Analysis results are presented, and the behavior of braced frame and moment frame buildings under column loss is compared.
Proceedings: Proceedings of the 2013 Structures Congress
Pages: 12 pp.
Location: Pittsburgh, PA
Dates: May 2-4, 2013
Keywords: Buildings; Connections; Composite materials; Finite element method; Floors; Nonlinear analysis; Progressive collapse; Steel structures
Research Areas: Progressive Structural Collapse
DOI: http://dx.doi.org/10.1061/9780784412848.005  (Note: May link to a non-U.S. Government webpage)
PDF version: PDF Document Click here to retrieve PDF version of paper (965KB)