A design-oriented model for the collapse resistance of composite floors subjected to column loss

Alashker, Yasser; El‐Tawil, Sherif

doi:10.1016/j.jcsr.2010.07.008

Cited by 62 publications

(15 citation statements)

References 9 publications

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“…() proposed a simplified framework for progressive collapse assessment of multi‐story buildings. Alashker and El‐Tawil () proposed a design‐oriented model for computing the load‐resisting capacity of composite floors subjected to column loss. Recently, a series of research was conducted to investigate the performance of building structures designed with various structure systems.…”

Section: Introductionmentioning

confidence: 99%

Progressive collapse resisting capacity of tilted building structures

Kim

Jung

2012

Structural Design Tall Build

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SUMMARY In this study, the progressive collapse resisting capacities of tilted buildings are evaluated on the basis of arbitrary column removal scenario. As analysis model structures both regular and tilted moment‐resisting frames, structures with outrigger trusses, and tubular/diagrid structures are designed, their progressive collapse resisting capacities are evaluated by nonlinear static and dynamic analyses. It turns out that the tilting of the structures requires increased steel tonnage due to the increased p‐delta effect. In addition in the tilted structures the plastic hinges are more widely distributed throughout the bays and stories when a column is removed from a side or a corner of the structures. With the analysis results, it is concluded that the tilted building structures, once they are properly designed to satisfy a given design code, may have at least an equivalent resisting capacity for progressive collapse caused by sudden loss of a column. Copyright © 2012 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

Progressive collapse resisting capacity of tilted building structures

Kim

Jung

2012

Structural Design Tall Build

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“…To avoid negative variables, the following change of variables is performed for each mechanism: (11) where the value of t should be selected as arbitrarily large to ensure that the values of t ′ i are positive. Substituting these equations into the main equation yields (12)…”

Section: Considering Catenary Action For Limit Analysismentioning

confidence: 99%

Modelling the catenary effect in the progressive collapse analysis of concrete structures

Naji

2016

Structural Concrete

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Progressive collapse is a phenomenon in which local failure of a structural component due to a gas explosion or blast may lead to failure of the entire structure or a significant part of it. RC structures can resist progressive collapse through various mechanisms such as frame action and catenary action. In this paper, the effect of catenary action on the resistance of concrete frame structures to progressive collapse is modelled using limit analysis. Non‐linear optimization is performed for this. It is observed that although frame action is known to be the main mechanism resisting progressive collapse, at the end of this action, after rupture of bottom bars, catenary effects may bring about a noticeable increase in the resistance of the structure. The results show good agreement with the experimental results of other researchers.

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“…Three research methods, including experimental tests [5,18,19,21,23,[37][38][39][40], numerical simulations [11,12,16,20,[32][33][34]36] and analytical derivations [2,4,39], have been used among these research studies. Among them, experimental test is the most effective and convincing method.…”

Section: Introductionmentioning

confidence: 99%

“…Alashker and El-Tawil [2] proposed a design-oriented model to compute the load-carrying capacity of composite steel concrete floors subjected to interior column loss. In this model, it is assumed that floor collapse is resisted through the development of membrane action in the slab elements and catenary forces in the steel beams.…”

Section: Introductionmentioning

confidence: 99%

“…In this model, it is assumed that floor collapse is resisted through the development of membrane action in the slab elements and catenary forces in the steel beams. However, this model is only validated by numerical simulation results and Alashker and El-Tawil [2] recommended further experimental tests for the model validation. In addition, the whole load-displacement curves of the floor system cannot be predicted well by this model and only large deformation responses can agree with the numerical simulations.…”

Section: Introductionmentioning

confidence: 99%

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