| 混凝土早期弹模反应动力学模型及其应用 |
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| 引用本文： | 张国新,刘毅,张冲,吴龙坤.混凝土早期弹模反应动力学模型及其应用[J].水利水电技术,2011,42(3). |
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| 作者姓名： | 张国新 刘毅 张冲 吴龙坤 |
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| 作者单位： | 1. 中国水利水电科学研究院结构材料研究所,北京,100038
2. 中国水电工程顾问集团成都勘测设计研究院,四川成都,610072 |
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| 基金项目： | 国家科技支撑计划项目，国家自然科学基金项目，水利部行业公益科研专项，中国水利水电科学研究院科研专项 |
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| 摘 要： | 本文阐述了混凝土早期硬化的简单规律,并据此提出了混凝土早期弹模发展的反应动力学模型.将这一模型应用于南水北调工程某引水方涵洞结构,工程实例证明,本文模型能很好地模拟夏天温度高混凝土早期弹模发展快、冬天温度低早期弹模发展慢这一事实,很好地解释了方涵洞中部裂缝发展成因,证明了本文模型的可靠性与适用性.
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| 关 键 词： | 混凝土早期弹模 温度相关 反应动力学模型 |
Dynamic model for concrete early-age response of elastic modulus and its application |
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| ZHANG Guoxin,LIU Yi,ZHANG Chong,WU Longshen.Dynamic model for concrete early-age response of elastic modulus and its application[J].Water Resources and Hydropower Engineering,2011,42(3). |
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| Authors: | ZHANG Guoxin LIU Yi ZHANG Chong WU Longshen |
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| Affiliation: | ZHANG Guoxin1,LIU Yi1,ZHANG Chong2,WU Longshen1(1.Department of Structures and Materials,China Institutes of Water Resources and Hydropower Research,Beijing 100038,China,2.Hydrochina Chengdu Engineering Corporation,Chengdu 610072,Sichuan,China) |
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| Abstract: | The general law of concrete early-age hardening is expatiated,and based on this,a kinetic model for the early-age development response of elastic modulus is put forward herein,and then,this model is applied to the simulation analysis of a square culvert structure within the South-to-North Water Transfer Project.The engineering actual case shows that the fact of the early-age development of the concrete elastic modulus during the high temperature of summer is faster than that during the low temperature of wi... |
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| Keywords: | concrete early-age elastic modulus temperature correlation kinetic model |
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