[1]刘金亮,贾艳敏,王佳伟,等.季冻区盐冻作用下结构氯离子侵蚀耐久寿命预测[J].哈尔滨工程大学学报,2018,39(10):1625-1632.[doi:10.11990/jheu.201704079]
 LIU Jinliang,JIA Yanmin,WANG Jiawei,et al.Prediction of the durable life of prestressed concrete structures eroded by chloride ions under salt freezing in seasonally frozen areas[J].hebgcdxxb,2018,39(10):1625-1632.[doi:10.11990/jheu.201704079]
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
39
期数:
2018年10期
页码:
1625-1632
栏目:
出版日期:
2018-10-05

文章信息/Info

Title:
Prediction of the durable life of prestressed concrete structures eroded by chloride ions under salt freezing in seasonally frozen areas
作者:
刘金亮1 贾艳敏1 王佳伟12 于广龙1
1. 东北林业大学 土木工程学院, 黑龙江 哈尔滨 150040;
2. 辽宁省交通规划设计院有限责任公司, 辽宁 沈阳 110001
Author(s):
LIU Jinliang1 JIA Yanmin1 WANG Jiawei12 YU Guanglong1
1. School of Civil Engineering, Northeast Forestry University, Harbin 150040, China;
2. Liaoning Communication Planning and Design Institute Co., Ltd., Shenyang 110001, China
关键词:
预应力混凝土结构季冻区盐冻冻融损伤氯离子侵蚀时变可靠度寿命预测
分类号:
U444
DOI:
10.11990/jheu.201704079
文献标志码:
A
摘要:
为了预测季冻区盐冻作用对预应力混凝土结构耐久性的影响,本文进行了混凝土盐冻损伤、氯离子扩散系数和结构耐久寿命的研究。根据中国季冻区主要城市的环境温湿度和混凝土冻融试验数据,分析了混凝土在盐冻环境下的损伤度;考虑混凝土盐冻循环损伤的影响,建立了预应力混凝土结构中氯离子时变扩散系数模型;采用Monte Carlo模拟分析了四个参数对预应力混凝土结构盐冻环境下氯离子侵蚀耐久寿命的敏感性;使用Matlab中JC算法,预测了盐冻作用下氯离子侵蚀预应力混凝土结构耐久寿命。结果表明:中国华北季冻区结构氯离子侵蚀耐久寿命最短,且混凝土表面氯离子浓度是影响耐久寿命的最敏感参数。

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备注/Memo

备注/Memo:
收稿日期:2017-04-24。
基金项目:中央高校基本科研业务费专项资金项目(2572017AB01,2572015BB20);黑龙江省自然科学基金项目(E2017003);辽宁省交通厅科技项目(201512);辽宁省交通厅科技项目(201513).
作者简介:刘金亮(1991-),男,博士研究生;贾艳敏(1962-),女,教授,博士生导师.
通讯作者:贾艳敏,E-mail:yanminjia2008@126.com.
更新日期/Last Update: 2018-10-10