Thermal analysis of hydration heat in concrete structures with pipe-cooling system

Kim, Jin Keun; Kim, Kook Han; Yang, Joo Kyoung

doi:10.1016/s0045-7949(00)00128-0

Cited by 86 publications

(51 citation statements)

References 1 publication

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“…Then, some calculation methods based on heat transfer by heat balance principle is developed, such as Jin Keun Kim method [16]. The water temperature distribution along the pipe can be calculated using these methods, and the boundary conditions of the atmosphere can also be applied.…”

Section: The Principle Of Finite Element Methods For Three Dimensmentioning

confidence: 99%

Inversion and Feedback Research on the Temperature Control and Crack Prevention for Concrete Crane Beam on Rock Wall

Zhang¹,

Shen²

2011

IJIGSP

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Abstract-Concrete crane beam on a rock wall on a new structure used in underground building has become more common in recent year. But the concrete beam cracking problem always perplexes scientists and engineers. In order to solve this, the construction information inversion and feedback analysis method is applied. A beam section was taken as a prototype experiment. The temperature and construction data was collected to inverse some necessary thermal parameters. According to the characteristics of concrete temperature field, the basic accelerating genetic algorithm was improved. The improved accelerating genetic algorithm has the merits of high precision and fast calculation. With this algorithm, the calculation temperature and measured value are very close, which shows the method is efficiency. Then inversed parameters were applied in the feedback simulation. According to the simulation results, the proper temperature control method was suggested. By this way, the concrete temperature was controlled well and the beams appear no crack in recent two year. The successful application shows that the inversion and feedback analysis of concrete temperature field can reflect the factual performance of concrete and give important direction to engineering construction.Index Terms-inversion, genetic algorithm, feedback analysis, crane beam on rock wall, temperature field

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Section: The Principle Of Finite Element Methods For Three Dimensmentioning

confidence: 99%

Inversion and Feedback Research on the Temperature Control and Crack Prevention for Concrete Crane Beam on Rock Wall

Zhang¹,

Shen²

2011

IJIGSP

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“…The equivalent equation is widely used in practical engineering projects [7,8]. Kim et al [9] implemented a line element for the precise modeling of the cooling pipe and applied internal flow theory to thermally analyze concrete structures with pipe cooling. However, the requirement that the line element for pipe modeling must be located at an edge of or run across a solid concrete element may lead to inconveniences in the model preprocessing.…”

Section: Introductionmentioning

confidence: 99%

Precise simulation analysis of the thermal field in mass concrete with a pipe water cooling system

Liu

Zhang

Chang

et al. 2015

Applied Thermal Engineering

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“…An accurate temperature profile history prediction is needed for the thermal stress prediction and to evaluate the cracking risks. Due to the complexity of non-uniform thermal loading from heat of hydration as well as nonuniform temperature-dependent concrete material properties at early age, numerical approaches such as finite element method (Bombich et al [1]; Kishi and Maekawa [2], Kim et al [3]; Waller et al [4]) or finite difference method (Ballim [5]) have been widely used for thermal analysis of early-age concrete. Al-Manaseer and Elias [6] created a finite element model using ABAQUS to simulate heat transfer process within early-age concrete; however, constant concrete thermal properties and uniform thermal loading were assumed during hydration, and the external surface temperature was inaccurately assumed to be the same as the ambient temperature for simplification.…”

Section: Introductionmentioning

confidence: 99%

Thermal analysis and adiabatic calorimetry for early-age concrete members

Lin

Chen

2015

J Therm Anal Calorim

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This paper describes a procedure for thermal analysis on early-age concrete structures with experimentally obtained concrete adiabatic temperature rise and interface conductance between steel formwork and concrete. During hydration, concrete is considered in the analysis as non-homogeneous and the degree of hydration is dependent on both thermal loading and thermal properties development. A thermal convection model was implemented to simulate the external heat loss. Experimentally, two 1.2-m concrete cubes were constructed with embedded temperature sensors. The measured temperature time histories correlate well with the calculated values using a finite element model developed for this study. The modeling method and the experimental procedures developed are able to accurately predict the temperature evolution within an early-age concrete structure.

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Thermal analysis of hydration heat in concrete structures with pipe-cooling system

Cited by 86 publications

References 1 publication

Inversion and Feedback Research on the Temperature Control and Crack Prevention for Concrete Crane Beam on Rock Wall

Inversion and Feedback Research on the Temperature Control and Crack Prevention for Concrete Crane Beam on Rock Wall

Precise simulation analysis of the thermal field in mass concrete with a pipe water cooling system

Thermal analysis and adiabatic calorimetry for early-age concrete members

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