Analysis of an arch–gravity dam with a horizontal crack

Malla, Sujan; Wieland, Martin

doi:10.1016/s0045-7949(99)00033-4

Cited by 48 publications

(25 citation statements)

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“…However, because of the lack of experimental and practical results and also because of existing di erences between the results obtained from It was found that the main source of the cracking was the Alkali Aggregate Reaction (AAR) phenomenon. Also, it was shown that two-dimensional models were not able to show the behavior of the considered dam properly [25].…”

Section: Introductionmentioning

confidence: 99%

Non‐linear behavior of mass concrete in three‐dimensional problems using a smeared crack approach

Mirzabozorg

Ghaemian

2004

Earthq Engng Struct Dyn

108

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SUMMARYA smeared crack approach has been proposed to model the static and dynamic behavior of mass concrete in three-dimensional space. The proposed model simulates the tensile fracture on the mass concrete and contains pre-softening behavior, softening initiation, fracture energy conservation and strain rate e ects under dynamic loads. The validity of the proposed model has been checked using the available experimental results under static and dynamic loads. The direct and indirect displacement control algorithms have been employed under incremental increasing static loads. It was found that the proposed model gives excellent results and crack proÿles when compared with the available data under static loads. The Koyna Dam in India has been used to verify the dynamic behavior of the proposed model. It was found that the resulting crack proÿles were in good agreement with the available experimental results. Finally, the Morrow Point Dam was analyzed, including the dam-reservoir interaction e ects, to consider its non-linear seismic behavior. It was found that the resulting crack proÿles were in good agreement with the contour of maximum principal stresses and no numerical instability occurred during the analysis.

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Section: Introductionmentioning

confidence: 99%

Non‐linear behavior of mass concrete in three‐dimensional problems using a smeared crack approach

Mirzabozorg

Ghaemian

2004

Earthq Engng Struct Dyn

108

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“…For this purpose, the thermal coefficient of concrete was defined as input parmeter. The numerical results were compared with the in-situ deformation measurements of affected structures, as showed by Malla and Wieland (1999).…”

Section: Models Based On Concrete Expansionmentioning

confidence: 99%

Literature review of modelling approaches for ASR in concrete: a new perspective

Esposito

Hendriks

2017

European Journal of Environmental and Civil Engineering

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The assessment of concrete structures affected by alkali-silica reaction (ASR) is a complex problem due to the multiscale nature of this longterm phenomenon. The reaction starts within the concrete constituents and developed at aggregate level by inducing swelling and deterioration of concrete material, which eventually affect the capacity of the structure. Due to this multiscale nature of the phenomenon, the problem is studied by various researchers in numerous manners. In this paper, a literature review of the main modelling approaches for ASR in concrete is presented within a new perspective. The models are categorised on the basis of their input and output parameters, instead of adopting the classical classification on the base of the scale (e.g. micro, meso and macro). The main aim of the review is to understand to which extent the available models are able to describe the deteriorating impact induced by ASR in concrete material and if the approaches can ultimately be extended to structural analyses. ARTICLE HISTORY

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“…In the early proposal a thermal equivalence approach was adopted to model the concrete expansion (Malla and Wieland 1999) and the stress-induced anisotropic behaviour was obtained by considering the local principal stresses (Charlwood 1994). In a second stage the influence of the environmental conditions was accounted by Léger et al (1996) and Larive (1998) with phenomenological formulas.…”

Section: Modeling Asr In Concretementioning

confidence: 99%

Towards Structural Modelling of Alkali-Silica Reaction in Concrete

Esposito

Hendriks

2014

Durability of Reinforced Concrete From Composition to Protection

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Structures affected by Alkali-Silica Reaction (ASR) include large massive concrete dams and bridges, which are considered essential for the infrastructure system, and not easily replaceable. The main feature of this reaction is the creation of a hydrophobic expansive gel which causes internal damage in the concrete. This damage is strongly related to the macroscopic stress state. Vice versa, the caused damage can have macroscopic consequences. Therefore a structural model should be able to capture the chemo-mechanical coupling induced by the swelling. For this purpose a multiscale material model is chosen to represent the ASR-affected concrete behaviour in structures. In this paper the motivations which brought the authors to this choice are explained.

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Analysis of an arch–gravity dam with a horizontal crack

Cited by 48 publications

References 0 publications

Non‐linear behavior of mass concrete in three‐dimensional problems using a smeared crack approach

Non‐linear behavior of mass concrete in three‐dimensional problems using a smeared crack approach

Literature review of modelling approaches for ASR in concrete: a new perspective

Towards Structural Modelling of Alkali-Silica Reaction in Concrete

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