2D-DEM modelling of the formwork removal of a rubble stone masonry bridge

Tran, VanHung; Vincens, Éric; Morel, Jean‐Claude; Dedecker, Fabian; Le, Hong Hanh

doi:10.1016/j.engstruct.2014.05.048

Cited by 13 publications

(7 citation statements)

References 14 publications

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“…This technique was then extended to the modeling of masonry structures ( [8], [10], [24]; [29]) and concrete structures [28]. To our knowledge, however, no research has thus far used DEM to study RE walls.…”

Section: Discrete Element Methodsmentioning

confidence: 99%

Modeling rammed earth wall using discrete element method

Bui

Limam

et al. 2015

Continuum Mech. Thermodyn.

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Rammed earth is attracting renewed interest throughout the world thanks to its "green" characteristics in the context of sustainable development. Several research studies have thus recently been carried out to investigate this material. Some of them attempted to simulate the rammed earth's mechanical behavior by using analytical or numerical models. Most of these studies assumed that there was a perfect cohesion at the interface between earthen layers. This hypothesis proved to be acceptable for the case of vertical loading, but it could be questionable for horizontal loading. To address this problem, discrete element modeling seems to be relevant to simulate a rammed earth wall. To our knowledge, no research has been conducted thus far using discrete element modeling to study a rammed earth wall. This paper presents an assessment of the discrete element modeling's robustness for rammed earth walls. Firstly, a brief description of the discrete element modeling is presented. Then, thirteen parameters that were necessary for discrete element modeling were identified. The relevance of the model and the material parameters were assessed by comparing them with experimental results from the literature. The results showed that, in the case of vertical loading, interfaces did not have an important effect. In the case of diagonal loading, model with interfaces produced better results. Interface's characteristics can vary from 85% to 100% of the corresponding earthen layer's characteristics.

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Section: Discrete Element Methodsmentioning

confidence: 99%

Modeling rammed earth wall using discrete element method

Bui

Limam

et al. 2015

Continuum Mech. Thermodyn.

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“…is calculated as an equivalent stiffness (kn,eq), based on the stiffness of one joint and the stiffness of two halves of blocks [Idris et al, 2009;Tran et al, 2014]:…”

Section: Out-of-plane Behavior Of the Longitudinal Wallmentioning

confidence: 99%

Seismic Performance of Historical Buildings Based on Discrete Element Method: An Adobe Church

Mendes

Zanotti

Lemos

2018

Journal of Earthquake Engineering

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This paper presents the main concepts and the application of the Discrete Element Method for evaluating the seismic performance of historical buildings. Furthermore, the out-ofplane behavior of an adobe church with thick walls, in which the morphology of the crosssection can have an influence on the response, was evaluated by the Discrete Element Method. The performance of rigid and deformable blocks models was compared, and the sensitivity of the numerical model to the variation of critical parameters was investigated. The results allowed the identification of the most vulnerable elements and a proposal of recommendations for reducing the seismic vulnerability.

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“…Experimental tests and numerical analyses of masonry arch structures have been repeatedly executed. The load-carrying capacity of masonry bridges was analyzed using the advanced discrete element method [12,13]. Besides, an implicit discrete element method was used to analyze the mechanical behavior of a standard arch bridge and a masonry stone bridge [14].…”

Section: Introductionmentioning

confidence: 99%

“…Nonlinear 3D finite element (FE) models, including arch-fill interaction effects and limit analysis models, were also developed [10,[18][19][20][21][22][23][24]. The arch in masonry arch bridges was analyzed as a two-phase material comprising bricks (or stones) and mortar [13,25]. An accurate mesoscale arch masonry model was also proposed [26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Study on the Restoration of a Masonry Arch Viaduct: Numerical Analysis and Lab Tests

et al. 2020

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This article presents an analysis of the load-carrying capacity of a historic masonry arch viaduct. The vault was made of bricks and lime-cement mortar. It was built in 1886 and, therefore, its historical character had to be included in the restoration project. The main task of the restoration was to bring the viaduct to a technical condition corresponding to the current requirements to allow normal (or limited) service. The strength of the brickwork and joints (mortar) was examined experimentally in the laboratory and on the viaduct. This paper presents numerical calculations for the masonry viaduct that were performed using two programs based on the finite element method. As the project documentation was unknown, two-and three-hinged models of the masonry arch were analyzed. The axial forces, shear forces, bending moments, displacement, normal stresses, and shear stresses generated from the numerical analysis have been discussed. The conditions of the load capacity of the arch viaduct due to compression and shearing have been met. The safety of a masonry arch of the viaduct was determined. Finally, the restoration scope of the masonry viaduct was proposed.

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2D-DEM modelling of the formwork removal of a rubble stone masonry bridge

Cited by 13 publications

References 14 publications

Modeling rammed earth wall using discrete element method

Modeling rammed earth wall using discrete element method

Seismic Performance of Historical Buildings Based on Discrete Element Method: An Adobe Church

Study on the Restoration of a Masonry Arch Viaduct: Numerical Analysis and Lab Tests

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