RC构件Cl^-二维扩散计算方法研究  

RESEARCH ON TWO-DIMENSION DIFFUSION MECHANISM OF CHLORIDE ION OF RC RECTANGULAR MEMBERS

作　　者：刘金铃 

机构地区：[1]福建省教育建筑设计院,福州350001

出　　处：《建筑技术开发》2009年第6期43-47,共5页Building Technology Development

摘　　要：总结现有氯离子(Cl^-)在混凝土构件中一维扩散机理及其模型的主要特征和适用性,针对实际工程中混凝土构件的具体情况,通过深入分析扩散系数D、扩散时间T、钢筋位置、Cl^-边界浓度和构件截面尺寸b×h等因素的影响,剖析Cl^-在混凝土构件中的实际扩散方式与途径,提出适用于实际构件的Cl^-二维扩散模型及其解析解法。该方法概念清楚、物理意义明确、思路清晰、计算简便,适应性强。具有理论意义和工程应用价值。The characteristics and the applicability of the one - dimension diffusion mechanism of chloride ion are summarized. By thoroughly studying the influences of the diffusion coefficient D, the diffusion time T, the position of steel bars, the boundary concentration of chloride ion and the dimensions of concrete members according to the circumstances of the practical RC members, the two - dimension diffusion mechanism of chloride ion suitable for engineering is analyzed. The model and the analytic solution of two - dimension diffusion of chloride ion are advanced correspondingly which have the advantages of explicit concepts, definite physical meanings, clear thoughts, convenient methods and applicability.

关 键 词：矩形截面构件 Cl^-二维扩散机理 影响因素 扩散模型 解析解法 

分 类 号：TU528.7[建筑科学—建筑技术科学]