Development of finite element computer code for thermal analysis of roller compacted concrete dams

Jaafar, Mohd Saleh; Bayagoob, Khaled Hamood; Noorzaei, J.; Thanoon, Waleed Abdulmalik

doi:10.1016/j.advengsoft.2006.08.040

Cited by 49 publications

(22 citation statements)

References 3 publications

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“…Jaafar et al developed a finite element based computer code for the determination of temperatures within the dam body. Based on the results obtained, it could be concluded that for a given roller compacted concrete dam, changing the placing schedule can optimize the locations of maximum temperature zones [3]. Thermal analysis of Kinta RCC dam was researched by Noorzaei et al [4].…”

Section: Introductionmentioning

confidence: 98%

Study on temperature distribution due to freezing and thawing at the Fengman concrete gravity dam

Liu

et al. 2011

Therm sci

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Freezing and thawing damage is one of the major problems of the Fengman concrete dam. Based on the temperature records of the dam, appropriate heat transfer boundary conditions in the dam body are suggested. A three-dimensional finite element model is used to determine annual variation of temperature field of the dam as a case study. The deterioration problem of concrete dam owing to freezing and thawing effect is investigated.

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Section: Introductionmentioning

confidence: 98%

Study on temperature distribution due to freezing and thawing at the Fengman concrete gravity dam

Liu

et al. 2011

Therm sci

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“…These equations describe thermal processes occurring inside massive concrete structures [8], equations of mechanics of a deformable medium, which make it possible to obtain a reliable picture of thermal stress fields in monolithic concrete structures, taking into account creep [9][10][11], and aging of the material [13]. There was a transition to a mathematical modeling of the thermally stressed state of concrete structures [14][15][16][17][18], which makes it possible to predict the potential appearance of temperature cracks.…”

Section: Introductionmentioning

confidence: 99%

Thermal cracking resistance of stacking concrete blocks

2018

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In massive concrete structures there is a danger of temperature cracks. One of the measures to get rid of these type of cracks is the breakdown of an array into concreting blocks. In this paper, we consider the provision of thermal crack resistance of a massive concrete structure during the construction period. A comparative analysis of the thermally stressed state of the structure erected by one and two blocks in height is carried out. The influence of the overlap intervals of the concrete block in the calculations of thermal crack resistance was evaluated. Thermal crack resistance is evaluated by the deformation criterion. The authors found that the breakdown of the concrete structure into concreting blocks reduces the elongation deformations by 37%. The results show that increasing the overlap interval of a concrete block more effectively ensures thermal crack resistance of the structure.

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“…In this study, adiabatic hydration model is used to simulate the heat of hydration generated during hardening of fresh concrete. When concrete is placed in adiabatic condition, the heat of hydration is completely converted into temperature and the adiabatic temperature rise of concrete is given by (Jafaar et al, 2007) …”

Section: Mathematical Model For Temperature Predictionmentioning

confidence: 99%

Numerical Prediction Model for Temperature Distributions in Concrete at Early Ages

Ali¹

2012

American Journal of Engineering and Applied Sciences

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A finite element-finite difference numerical model is developed for predicting non-uniform temperature development in hydrating concrete with respect to time and space. The results obtained from this model can be used by structural and construction engineers to predict critical thermal stresses induced due to differential temperatures between the core and the surface of the concrete at early ages and between the zero-stress temperatures and the minimum equilibrating ambient temperatures that the concrete experiences during its service life. The prediction of zero-stress temperatures also enables to quantify the extent of builtin curl developed in concrete structures. The finite element is used to space discretization while the finite difference is used to obtain transient solutions of the model. The numerical formulations are then programmed in Matlab. The numerical results were compared with experimental results found in literature and demonstrated very good agreement.

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Development of finite element computer code for thermal analysis of roller compacted concrete dams

Cited by 49 publications

References 3 publications

Study on temperature distribution due to freezing and thawing at the Fengman concrete gravity dam

Study on temperature distribution due to freezing and thawing at the Fengman concrete gravity dam

Thermal cracking resistance of stacking concrete blocks

Numerical Prediction Model for Temperature Distributions in Concrete at Early Ages

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