Numerical investigation of collapse of the Minnesota I-35W bridge

Salem, Hamed; Helmy, Huda

doi:10.1016/j.engstruct.2013.11.022

Cited by 76 publications

(40 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…AEM analysis is effectively applied in the progressive collapse analysis of various types of buildings including high rise RC, steel and masonry structures due to its capability in nonlinear and large deformation scenario [16,17]. The method has also been successfully implemented for collapse analysis of bridges also [18]. Several numerical studies have been conducted to verify the accuracy of prediction of this method in the real world collapse cases of multi storied buildings [19,20].…”

Section: Conclusion and Discussionmentioning

confidence: 99%

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

2017

IJCRR

View full text Add to dashboard Cite

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.

show abstract

Section: Conclusion and Discussionmentioning

confidence: 99%

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

2017

IJCRR

View full text Add to dashboard Cite

show abstract

“…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%

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

Salem

Mohssen²,

Kosa

et al. 2014

ACT

View full text Add to dashboard Cite

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.

show abstract

“…For example, several bridges were collapsed by poor quality control of paint layer, e.g. section loss from corrosion on I35W Bridge and Silver Bridge in US [8][9][10]. Thus, the paint thickness management is gaining its importance, and the regulations and guidelines for paint thickness management are continuously establishing.…”

Section: Introductionmentioning

confidence: 99%

Reference-free Coating Thickness Quantification using Laser Thermography under Various Exterior Temperature Conditions

Hwang¹,

Park²,

Jin³

et al. 2018

Proceedings of the 2018 International Conference on Quantitative InfraRed Thermography

View full text Add to dashboard Cite

This paper presents a reference-free paint-thickness visualization method using thermography. When thermalwaves generated by a continuous-wave laser are applied to a paint-surface, the thermal-waves propagate through the paint-layer and the resultant thermal-waves are measured by an infrared camera. The propagating characteristics of thermal-waves through the paint-layer are altered from the changes on the thickness of paint-layer. Accordingly, the alternation can be mapped as the paint-thickness regardless of varying exterior temperature conditions by analysing the phase and amplitude of the thermal-waves acquired by the infrared camera, and the accuracy of the thickness quantification can be further enhanced by additional image processes.

show abstract

Numerical investigation of collapse of the Minnesota I-35W bridge

Cited by 76 publications

References 9 publications

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

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

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

Reference-free Coating Thickness Quantification using Laser Thermography under Various Exterior Temperature Conditions

Contact Info

Product

Resources

About