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New numerical procedure for the prediction of temperature development in early age concrete structures

机译:预测早期混凝土结构温度发展的新数值程序

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摘要

A new numerical model for the prediction of temperature development in young concrete structures is briefly presented. With the pre-program. adiabatic hydration curves, which are used to determine the internal heat generation, are calculated. An artificial neural networks approach is used for this purpose. Adiabatic hydration curves, which were included in the learning set, were determined by our own experiments, using the adiabatic calorimeter which uses air as the coupling media. The main program is implemented in the finite element code. This program allows concrete structure designers and contractors to quantify and evaluate the effects of some concrete initial parameters on the adiabatic hydration curves and corresponding temperature development at an arbitrary point in the concrete element. Some examples are also presented and discussed. (C) 2009 Elsevier B.V. All rights reserved
机译:简要介绍了一种预测年轻混凝土结构温度发展的新数值模型。随着预程序。计算了用于确定内部热量产生的绝热水化曲线。为此,使用了人工神经网络方法。通过我们自己的实验,使用以空气为耦合介质的绝热热量计,确定了学习集中包含的绝热水合曲线。主程序以有限元代码实现。该程序使混凝土结构设计者和承包商可以量化和评估一些混凝土初始参数对绝热水化曲线和混凝土单元中任意点处相应温度发展的影响。还提供并讨论了一些示例。 (C)2009 Elsevier B.V.保留所有权利

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