Toward an economic design of reinforced concrete structures against progressive collapse

Salem, Hamed; Elfouly, Ayman; Tagel-Din, Hatem

doi:10.1016/j.engstruct.2011.06.020

Cited by 58 publications

(45 citation statements)

References 7 publications

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“…In this study, the Extreme Loading for Structures (ELS) software (www.appliedscienceint.com), which is based on the AEM, is used. The AEM was proven to be capable of following the deformations of a structure subjected to extreme loads to its total collapse (Sasani and Sagiroglu 2008;Sasani 2008;Park et al 2009;Wibowo et al 2009;Galal and ElSawy 2010;Salem et al 2011;Helmy et al 2009;Helmy et al 2012;Helmy et al 2013;Sasani 2008;Salem 2011;Salem and Helmy 2014 ). Therefore, and since the goal of the current study is to investigate the collapsing behavior of Utatsu Ohashi bridge under severe loads resulting from tsunami action, it was decided that the AEM would be the most appropriate numerical tool for such investigation.…”

Section: The Applied Element Methods (Aem)mentioning

confidence: 99%

“…Therefore, in the current study, the numerical analysis was carried out using the Applied Element Method. The Applied Element Method is based on discrete crack approach and is capable of following the structure's behavior to its total collapse Meguro and Tagel-Din 2001;Tagel-Din 2002;Meguro and Tagel-Din 2003;Tagel-Din and Rahman 2004;Galal and ElSawy 2010;Sasani and Asgitoglu 2008;Salem et al 2011;Park et al 2009;Helmy et al 2009;Helmy et al 2012;Helmy et al 2013;Sasani 2008;Wibowo 2009;Salem 2011;Salem and Helmy 2014) …”

Section: Introductionmentioning

confidence: 99%

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Collapse Analysis of Utatsu Ohashi Bridge Damaged by Tohuku Tsunami using Applied Element Method

Salem

Mohssen²,

Kosa

et al. 2014

ACT

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The 2011 Tohuku tsunami on the east coast of Japan resulted in killing more than 15,000 people and missing more than 2,500 people, washing away of more than 250 coastal bridges and loss of US$235 billion. Collapse of coastal bridges due to tsunami impact represents a huge obstacle for rescue works. Therefore, in the current study, the collapse of Utatsu Ohashi bridge is numerically studied. The analysis is carried out using the Applied element Method due to its advantages of simulating structural progressive collapse. The AEM is a discrete crack approach, in which elements can be separated, fall and collide to other elements in a fully nonlinear dynamic scheme of computations. The Utatsu Ohashi bridge collapse was successfully simulated using AEM. It was numerically found that the amount of trapped air between deck girders during tsunami had a significant effect on the behavior of the bridge. This is attributed to the buoyant force accompanied with the trapped air. A simplified method for estimating trapped air was assumed and proved to give reasonable results compared to reality. Three different solution examples for mitigating collapse of similar existing bridges were introduced and applied to Utatsu Ohashi bridge case and found to be efficient for preventing collapse.

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Section: The Applied Element Methods (Aem)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Collapse Analysis of Utatsu Ohashi Bridge Damaged by Tohuku Tsunami using Applied Element Method

Salem

Mohssen²,

Kosa

et al. 2014

ACT

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“…Structural analysis and design has been practiced using the finite-element method (FEM) for over five decades since Turner (1959) [12] proposed the direct stiffness method (DSM) as an efficient and general computer implementation method and as yet unnamed FEM [15] . Clough in 1960 coined the term "Finite Elements".…”

Section: Comparison Of Aem With Femmentioning

confidence: 99%

Non-linear Analysis Reinforced Concrete Flexure Members Using Elements with Axial – Shear Coupling

2017

IJCRR

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Abstract:This paper explains the formulation of Applied Element Method (AEM) as applied to plain and reinforced concrete beams as two-dimensional structures by primarily implementing material nonlinearity. Both concrete and steel reinforcement have non-linear stress-strain curve in the model. A multi linear curve is assumed for reinforcement and concrete is modeled as a progressively fracturing solid. Static linear analysis of a reinforced beam using this method was compared with finite element and coupled boundary element method solutions. Static non-linear analysis of plain concrete beam using this method was compared with results of fracture mechanics model and published experimental results. The results were in good agreement with established analysis methods and experimental data. Advantages of AEM which is simple and straightforward in the modeling of reinforced concrete members are also discussed.

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“…The experimental RC frameanalysed in this paper has been previously analysed by other researchers, as well [4,5,6]. In the paper on Botez et al [4], the experimental RC frame is checked using the Finite Element Method (FEM) and a dedicated software (Abaqus).…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis on the Collapse of a RC Frame

Nica

Pavel

2016

Mathematical Modelling in Civil Engineering

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This paper focuses on the collapse analysis of a planar RC frame. This research is based on an experimental study presented in the literature. The analyses are conducted using a dedicated software based on the Applied Element Method. This numerical method is able to model accurately all the structural behaviour stages leading up to the collapse itself. A very good match between the experimental and numerical results is observed. The numerical investigation highlights several behaviour stages for the model RC frame. Moreover, the contribution of the RC slab and the impact of the concrete strength on the overall collapse mechanism is discussed and evaluated through numerical investigation.

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Toward an economic design of reinforced concrete structures against progressive collapse

Cited by 58 publications

References 7 publications

Collapse Analysis of Utatsu Ohashi Bridge Damaged by Tohuku Tsunami using Applied Element Method

Collapse Analysis of Utatsu Ohashi Bridge Damaged by Tohuku Tsunami using Applied Element Method

Non-linear Analysis Reinforced Concrete Flexure Members Using Elements with Axial – Shear Coupling

Numerical Analysis on the Collapse of a RC Frame

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