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Simulation Analysis of Mass Concrete Temperature Field CORE

Simulation Analysis of Mass Concrete Temperature Field CORE

Simulation Analysis of Mass Concrete Temperature Field

simulation analysis to the large-volume concrete temperature field and temperature stress. It can be divided into the following three procedures: 3.2.1.

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Simulation Analysis of Mass Concrete Temperature Field ...

Jan 01, 2012  It concludes that key to temperature control of mass concrete lies in the dual control of temperature and temperature stress. The simulation analysis of

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Simulation Analysis of Mass Concrete Temperature Field - CORE

In this paper, MIDAS finite element analytical software was used to simulate the temperature field of mass concrete in a certain high-rise building foundation

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(PDF) Simulation Analysis of Mass Concrete Temperature Field

Simulation Analysis of Mass Concrete Temperature Field ... used to simulate the temperature field of mass concrete in a certain high-rise building foundation

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Simulation Analysis of Mass Concrete Temperature Field - CORE

Simulation Analysis of Mass Concrete Temperature Field . By Zhou Yunchuan, Bai Liang, Yang Shengyuan and Chen Guting. Cite . BibTex; Full citation Publisher:

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Simulation Analysis of Mass Concrete Temperature Field ...

We are not allowed to display external PDFs yet. You will be redirected to the full text document in the repository in a few seconds, if not click here.click here.

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Precise simulation analysis of the thermal field in mass ...

Mar 05, 2015  Thermal analysis is one of the main components in the design and construction of mass concrete structures. A procedure for a heat-fluid coupling model (HFCM) is

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Simulation and analysis of large bridge Mass Concrete ...

Simulation and analysis of large bridge Mass Concrete Temperature Field. By 蔺吉秋, 常青 and 刘昌平. BibTex. Full citation. No static citation data. No static

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Simulation Analysis of Mass Concrete Temperature Field ...

adshelp[at]cfa.harvard The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A

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Simulation Analysis on Mass Concrete Temperature Field of ...

TY - CONF AU - Ke Jin AU - Hui Peng AU - Chen Wen AU - Fan Wu AU - Shaofei Yin PY - 2016/08 DA - 2016/08 TI - Simulation Analysis on Mass Concrete Temperature Field of Navigation Lock in Changsha Integrated Hub BT - Proceedings of the 2016 International Conference on Computer Science and Electronic Technology PB - Atlantis Press SP - 290 EP ...

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Simulation Analysis on Mass Concrete Temperature Field of ...

Download Citation On Sep 28, 2016, Chen Jianling and others published Simulation Analysis on Mass Concrete Temperature Field of Lock Floor Layered Pouring Find, read and cite all the research ...

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Investigation and Guidelines for Mass Concrete ...

and laboratory and field research of mass concrete cooling. The guideline can allow GDOT ... Experimental vs. modeled temperature history in the core of the specimen (sensor location T4) ... Figure 21. 1D simulation of actively cooled concrete, PEX tubing ..... 26 Figure 22. Midscale experiment with active cooling vs. 1D FTCS Python simulation of

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Numerical Simulation of Temperature Gradients for the

sing the temperature of mass concrete. Liu et al. (2015) established through simulation and monitoring of a mass concrete dam that the temperature of the concrete was re-duced nearby the cooling pipes. All the above researches has been shown to be useful for control of early cracking, and these methods can be employed for one-time conc-

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Thermal Stress Numerical Simulation on Concrete Hydration ...

The finite element analysis software, during the pouring of concrete for the temperature field and stress field in a numerical simulation analysis. Analysis showed that the concrete core temperature changes greater maximum thermal stress in mass concrete bottom and around the site and soil transfer, far less than the concrete tensile stress, the temperature will not crack.

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Predicting thermal performance of a mass concrete ...

Dec 01, 2019  1. Introduction. ACI 116R defines mass concrete as “any volume of concrete with dimensions large enough to require that measures be taken to cope with generation of heat from the hydration of cement and attendant volume change to minimize cracking” [].Generally, structural members with a least dimension greater than 1.22 m (4 ft.) fall into this category.

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A p-version embedded model for simulation of concrete ...

AbstractPipe cooling is an effective method of mass concrete temperature control, but its accurate and convenient numerical simulation is still a cumbersome problem. An improved embedded model, considering the water temperature variation along the pipe, was proposed for simulating the temperature field of early-age concrete structures ...

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(PDF) Research on hydration heat temperature field in mass ...

Analysis of Temperature Field and Thermal Stresses in Mass Concrete Mat Foundation Structures[J].Journal of Nanjing Architectural and Civil Engineering Institute, 1999,

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Experimental and Numerical Studies of Controlling Thermal ...

mass concrete in order to control thermal cracks in mass concrete. Some other studies [13–15] have investigated the use of phase change materials (PCM) to limit the rise in temperature of mass concrete. For the pre-buried cooling water pipe method, concrete should be embedded with a large number of pipelines; the process is complex and costly.

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Actual Temperature Evolution of Thick Raft Concrete ...

Jan 21, 2019  Heat of the hydration-induced temperature evolution of a 3.30 m thick raft concrete foundation for wind turbines at the early ages was monitored in situ through a temperature sensor testing system. The temperature variation patterns and risk of cracking were studied. Finite element analysis (FEA) conducted on the temperature fields determined the lower thickness threshold requiring temperature ...

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Case study on ventilation and cooling control technology ...

Aug 01, 2021  Through the analysis of the flow field temperature nephogram after 300s of simulation calculation, it can be seen that the overall temperature of the flow field increases by 2 K at least, and the ambient temperature of the concrete pouring position increases by 3.6 K as a whole. Over time, the flow field temperature continues to rise.

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A new method solving the temperature field of concrete ...

When using the conventional finite element method, a great number of grid nodes are necessary to describe the large and uneven temperature gradients in the concrete around cooling pipes when calculating the temperature field of mass concrete with cooling pipes. In this paper, the temperature gradient properties of the concrete around a pipe were studied.

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Thermal Stress Numerical Simulation on Concrete Hydration ...

The finite element analysis software, during the pouring of concrete for the temperature field and stress field in a numerical simulation analysis. Analysis showed that the concrete core ...

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Simulation Analysis on Mass Concrete Temperature Field of ...

Simulation Analysis on Mass Concrete Temperature Field of Lock Floor Layered Pouring. Full-Text PDF XML 512 Views. ... (APDL) compilation command on the finite element program ANSAYS platforms to simulate the temperature field of the layered pouring process about the lower lock head.

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Composite element algorithm for the thermal analysis of ...

May 17, 2011  – Pipe cooling is an important measure for controlling the temperature in mass concrete. Since the temperature field in mass concrete containing cooling pipes is unsteady and three‐dimensional, and there are huge quantities of the cooling pipes in the concrete, the study of efficient and reliable algorithm is crucial. The purpose of this paper is to develop the composite

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Monitoring Concrete Temperature in Extreme Weather Conditions

Mar 23, 2018  Additionally, high temperature issues are of concern, especially in mass concrete pours, where the core temperature can be very high due to the mass effect, while the surface temperature is lower. This causes a temperature gradient between the surface and the core, if this differential in temperature is too large it will cause thermal cracking.

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A new method solving the temperature field of concrete ...

When using the conventional finite element method, a great number of grid nodes are necessary to describe the large and uneven temperature gradients in the concrete around cooling pipes when calculating the temperature field of mass concrete with cooling pipes. In this paper, the temperature gradient properties of the concrete around a pipe were studied.

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Numerical simulation analysis of flow and heat transfer of ...

Y. Shouguang et al.: Numerical Simulation Analysis of Flow and Heat Transfer of Supercritical LNG in the IFV Condenser 125 entrance on the inlet velocity, mass flow inlet was selected as inlet boundary condition, and the inlet temperature was 111.15 K [9]. Because the pressure and temperature at the outlet were unknown, the

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(PDF) Simulation Analysis of Thermal Stress of CFST Arch ...

The temperature field during cement hydration, and the shrinkage of the core concrete in high performance concrete-filled steel tubes are experimentally studied in this paper.

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A Simplified Method for Real-Time Prediction of ...

Temperature in Mass Concrete at Early Age Guo An 1 , Ning Yang 2 , Qingbin Li 1 , Yu Hu 1, * and Huiting Yang 1 1 State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic ...

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Mathematical Modeling and Numerical Analysis of Thermal ...

L. Yangbo, H. Dahai, and O. Jianshu, “Fast algorithms of the simulation analysis of the thermal stresses on concrete dams during construction periods,” Physics Procedia, vol.

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Some Numerical Methods for Temperature and Mass

the simulation of temperature and moisture distributions inside the herbs material during dehydration potential of herbs in a slab-shaped solid. Mathematical modeling presents the exchange of heat and mass transfer between material and drying air. Finite-difference method (FDM) based on Crank-Nicolson was used to discretise a parabolic type partial

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Effect of Thermal Parameters on Hydration Heat Temperature ...

To study the influence of concrete thermal parameters on hydration heat temperature and thermal stress of mass concrete, a three-dimensional finite element model of the dam foundation is established. 3.1. Finite Element Model. The highest foundation dam section with the size of 30 m (length) 20 m (width) 3 m (height) is chosen as the study ...

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Numerical simulations of concrete flow: A benchmark ...

Jan 01, 2016  1. Introduction. The first use of numerical simulations of concrete flow by Mori and Tanigawa traces back to 1992 .Since then, the increasing use of Self Compacting Concrete (SCC) and the growing interest for rheology and processing has led to a very strong increase in the academic activity in this field along with an increasing number of publications dealing with concrete flow simulations ...

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Numerical simulation and measurement analysis of the ...

Feb 19, 2019  Targeting the challenging analysis of the temperature field of the artificial freezing shaft sinking projects in Cretaceous strata, this study used the Hongqinghe air shaft freezing project as an example to perform a numerical simulation and measurement analysis of the temperature field of shaft sinking via the artificial freezing method in Cretaceous strata.

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Analytical calculation of temperature‐induced strain of ...

Jun 16, 2021  Based on the simulated temperature field, the temperature-induced strain is calculated from Equation 11 and then compared with the strain calculated by the FE thermal-structure coupling analysis. As shown in Figure 3 , the generalised cantilever model is in a rectangular cross section with the dimensions of 0.9 m × 1.8 m × 4.5 m.

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Curing parameters’ influences of early-age temperature ...

In order to study the variation law of the early-age temperature field of the box girder concrete and to seek the method to control the variation of the temperature field of the box girder concrete, the No.0 box segment with the most complex structure and the largest volume in

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