[1]赵娟,李倍.温湿-氯离子耦合渗透跨海大桥寿命预测模型[J].深圳大学学报理工版,2015,32(6):632-637.[doi:10.3724/SP.J.1249.2015.06632]
 Zhao Juan and Li Bei.Life prediction model of cross-sea bridge considering chloride ion penetration coupled with temperature and moisture transfer[J].Journal of Shenzhen University Science and Engineering,2015,32(6):632-637.[doi:10.3724/SP.J.1249.2015.06632]
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温湿-氯离子耦合渗透跨海大桥寿命预测模型()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第32卷
期数:
2015年第6期
页码:
632-637
栏目:
土木建筑工程
出版日期:
2015-11-23

文章信息/Info

Title:
Life prediction model of cross-sea bridge considering chloride ion penetration coupled with temperature and moisture transfer
文章编号:
201506011
作者:
赵娟李倍
上海应用技术学院城市建设与安全工程学院,上海 201418
Author(s):
Zhao Juan and Li Bei
concrete; chloride ion penetration; temperature-moisture transfer; cross-sea bridge; life prediction; durability
关键词:
混凝土氯离子渗透温湿传导跨海大桥寿命预测耐久性
Keywords:
concrete chloride ion penetration temperature-moisture transfer cross-sea bridge life cycle prediction durability
分类号:
TU 502.6
DOI:
10.3724/SP.J.1249.2015.06632
文献标志码:
A
摘要:
考虑氯离子渗透过程中同时发生的温湿耦合传导问题,完善温湿-氯离子耦合传导过程的控制方程及相关参数,提出综合考虑温湿耦合传导影响的氯离子渗透数值模型.将该综合模型应用于在建的全球最长跨海大桥——港珠澳大桥,预测了该大桥不同部位构件进入钢筋腐蚀状态的临界时间,系统分析了不同边界环境下影响腐蚀临界时间的关键因素.研究表明,处于潮汐影响区的混凝土是遭受氯离子侵蚀最显著的部位,混凝土水灰比以及保护层厚度是影响构件抗氯离子腐蚀寿命的控制因素.
Abstract:
Considering conduction problems coupled with temperature and moisture simultaneously in chloride penetration process, we propose a chloride penetration numerical model coupled with temperature and moisture transfer by improving equations and parameters of the coupled conduction process. The model is applied to the world’s longest under construction cross-sea bridge—Hong Kong-Zhuhai-Macao Bridge for prediction of the initial critical time of steel corrosion in the different parts of the bridge, and the systematical analysis of the key factors affecting the corrosion critical time in different boundary environment. Results show that the tidal zone exposure of concrete results in a more severe attack on the reinforcement, and the concrete water-cement ratio and cover thickness as controlling factors in affecting concrete anti-chloride corrosion life should be prevented especially.

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备注/Memo

备注/Memo:
Received:2015-05-01;Accepted:2015-08-15
Foundation:National Natural Science Foundation of China (51408361); The Fund for Scientific Research and Innovation Supported by Shanghai Municipal Education Commission (14YZ142)
Corresponding author:Associate professor Zhao Juan. E-mail: zhaojuan_sit@163.com
Citation:Zhao Juan, Li Bei. Life prediction model of cross-sea bridge considering chloride ion penetration coupled with temperature and moisture transfer[J]. Journal of Shenzhen University Science and Engineering, 2015, 32(6): 632-637.(in Chinese)
基金项目:国家自然科学基金资助项目(51408361);上海市教委创新项目(14YZ142)
作者简介:赵娟(1977—),女(汉族),河南省开封市人,上海应用技术学院副教授、博士. E-mail:zhaojuan_sit@163.com
引文:赵娟,李倍. 温湿-氯离子耦合渗透跨海大桥寿命预测模型[J]. 深圳大学学报理工版,2015,32(6):632-637.
更新日期/Last Update: 2015-11-06