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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|
|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:||Click here to retrieve PDF version of paper (965KB)|