It is a significant factor to predict the temperature stress and gradient of concrete structure during pouring. In this paper, the Computational Fluid Dynamics (CFD) and Finite Element Method (FEM) were used to analyze the temperature and stress generated by temperature gradient of mass cap ...
Freshly placed concrete exerts pressure on formwork during the placing operation. It is influenced by the rate of placing and the air temperature. For instance, if the concrete pouring rate is too slow, setting of concrete starts to take place. As a result, the concrete at the...
(B) to reduce the pressure temperature change on closure section of concrete, concrete pouring time choose the day when the minimum temperature of cast, after the strength of the concrete strength meet the design requirements, symmetrical stretching and Grouting in sequence. Tension after Grouting c...
摘要: KSCE Journal of Civil Engineering - Concrete inevitably gets subjected to the effects of atmospheric wind during pouring. It is a significant factor to predict the temperature stress and gradient...关键词: Hydration heat Fluid-solid coupling Computational fluid dynamics (CFD) Finite element ...
By closely monitoring temperature variances in your concrete element during curing you will ensure that the strength, quality, and durability of your structure is acceptable. The heat produced by concrete during curing is called heat of hydration. This exothermic reaction occurs when water and cement...
2.Temperature Control on Concrete Pouring of Longkou Water Control Project龙口水利枢纽工程混凝土浇筑温度控制 3.Linear Accelerator Machine Room Pouring of Mass Concrete Temperature Control and Analysis直线加速器机房大体积混凝土浇筑温度控制与分析 4.MONITORING OF TEMPERATURE STRAIN DURING CONTINUOUS POURING CONC...
1.3.1 The Variation of Temperature of Mass Concrete with Time Because of the large size, the variation of temperature in a mass concrete structure is shown in Figure 1.3; the placing temperature Tp is the concrete temperature just after pouring. If the concrete cannot be completely cooled, it...
In order to reduce the surface temperature of the concrete cracks, concrete slab foundation and expand the use of continuous casting method of slope-style thin pouring over each layer thickness control in less than 40cm in order to take full advantage of cooling the concrete level. 翻译结果2复...
concrete temperature control is to ensure that a large volume of concrete pouring pile quality of the key factors.In order to better understand large volumes of concrete pile stress cracks due to temperature reasons,according to the highway bridge concrete construction massive pile of practice,...
11.The temperature cracks are calculated by use of a crack band model, and the stress and cracking of the concrete wall are computed by using the half-analytical iteration method.采用裂缝带模型计算温度裂缝,用半解析迭代法进行了混凝土墙的温度应力和开裂计算。