This research examines the performance of two- and four-story steel building models against progressive collapse in two cases: 1) skewed beam–column connections and 2) straight cleated beam–beam connections. Nonlinear static and dynamic analyses were performed and then a time history analysis was performed under the simultaneous effect of the two horizontal components of three earthquake records and two column removal scenarios. The results showed that the 60-degree skewed connection had a weaker performance than the straight connection and, according to the plastic hinge distribution, it was observed that the mentioned connection did not meet the life safety performance level.
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On the performance of steel buildings with skewed beams against the progressive collapse
Published: 24 October 2023 by MDPI in The 1st International Online Conference on Buildings session Building Structures
Keywords: Progressive collapse; Skewed beam-column connection; Straight cleated beam-beam connection; Push-down analysis; Nonlinear dynamic analysis.