|本期目录/Table of Contents|

[1]陆春华,袁思奇.基于时变可靠度的锈蚀混凝土结构全寿命成本模型[J].建筑科学与工程学报,2017,34(02):71-78.
　LU Chun-hua,YUAN Si-qi.Life-cycle Cost Model of Corroded Concrete Structures Based on Time-varying Reliability[J].Journal of Architecture and Civil Engineering,2017,34(02):71-78.
点击复制

基于时变可靠度的锈蚀混凝土结构全寿命成本模型(PDF)
分享到：

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
34卷
期数:
2017年02期
页码:
71-78
栏目:
出版日期:
2017-03-30

文章信息/Info

Title:
Life-cycle Cost Model of Corroded Concrete Structures Based on Time-varying Reliability
作者:
陆春华，袁思奇
江苏大学土木工程与力学学院
Author(s):
LU Chun-hua, YUAN Si-qi
Faculty of Civil Engineering and Mechanics, Jiangsu University
关键词:
混凝土结构; 氯盐侵蚀; 锈胀裂缝宽度; 时变可靠度; 全寿命成本
Keywords:
concrete structure;  chloride erosion;  corrosion crack width;  time-varying reliability;  life-cycle cost
分类号:
-
DOI:
-
文献标志码:
A
摘要:
为了分析混凝土结构在氯盐环境下的全寿命周期成本，基于现有氯离子扩散模型和裂缝宽度预测模型，采用MATLAB软件进行Monte-Carlo抽样模拟，建立结构失效概率与可靠度指标的拟合公式。通过研究维护-加固措施对可靠度指标的影响，建立全寿命周期内维护-加固费用计算评估方法，并以混凝土桥梁结构为例计算了全寿命周期维护-加固成本。结果表明：失效概率与可靠度指标可用以失效概率等于0.1为界的分段函数进行描述；维护-加固效果持续时间对结构构件服役年限延长的影响最显著；当保护层厚度取60 mm时，维护-加固阶段费用有明显下降，较保护层厚度取40 mm时减少25%~50%。
Abstract:
In order to analyze the life-cycle cost of concrete structures in chloride environment, the existing chloride diffusion model and crack width prediction model were used, Monte-Carlo sampling simulation was carried out using MATLAB software, and the fitting formula of structural failure probability and reliability index was established. The calculation method of maintenance-reinforcement cost in the whole life cycle was established combining the influence of maintenance-reinforcement measures on reliability index, and the life-cycle maintenance-reinforcement cost was calculated by taking concrete bridge structure as an example. The results show that the failure probability and reliability index can be described by piecewise function with failure probabilities being 0.1 as boundary. The duration of maintenance-reinforcement effect has the most obvious effect on service life extension of structural members. When the thickness of protective layer is 60 mm, the maintenance-reinforcement cost decreases obviously, and is reduced by 25%50% compared with the thickness of protective layer 40 mm.

参考文献/References:

相似文献/References:

[1]曹 杨,孙千伟,宫文军,等.新型装配式混凝土框架型钢节点试验[J].建筑科学与工程学报,2016,33(02):15.
　CAO Yang,SUN Qian-wei,GONG Wen-jun,et al.Experiment on New Section Steel Joints for Prefabricated Concrete Frame[J].Journal of Architecture and Civil Engineering,2016,33(02):15.
[2]何化南,冯 叶,张冠华,等.考虑表面氯离子质量分数的沿海混凝土桥梁氯离子扩散修正模型[J].建筑科学与工程学报,2017,34(04):57.
　HE Hua-nan,FENG Ye,ZHANG Guan-hua,et al.Revised Chloride Ion Diffusion Models of Concrete Bridges Near Coastal Areas Considering Surface Chloride Ion Concentration[J].Journal of Architecture and Civil Engineering,2017,34(02):57.
[3]陈曦,梁剑青.混凝土结构周期比分析[J].建筑科学与工程学报,2009,26(03):117.
　CHEN Xi,LIANG Jian-qing.Analysis of Period Ratio of Concrete Structure[J].Journal of Architecture and Civil Engineering,2009,26(02):117.
[4]马昆林,谢友均,龙广成.氯盐环境下桥梁混凝土结构的腐蚀行为及破坏机理[J].建筑科学与工程学报,2008,25(03):32.
　MA Kun-lin,XIE You-jun,LONG Guang-cheng.Corrosion Behavior and Destructive Mechanism of Bridge Concrete Structure Under Chloride Salt Environment[J].Journal of Architecture and Civil Engineering,2008,25(02):32.
[5]肖建庄,陈立浩,叶建军,等.混凝土结构拆除技术与绿色化发展[J].建筑科学与工程学报,2019,36(05):1.
　XIAO Jian-zhuang,CHEN Li-hao,YE Jian-jun,et al.Technology and Green Development of Demolition for Concrete Structures[J].Journal of Architecture and Civil Engineering,2019,36(02):1.
[6]陈 琳,屈文俊,朱 鹏,等.混凝土结构等耐久性设计方法[J].建筑科学与工程学报,2020,37(02):81.[doi:10.19815/j.jace.2019.03059]
　CHEN Lin,QU Wen-jun,ZHU Peng,et al.Equal Durability Design Method for Concrete Structure[J].Journal of Architecture and Civil Engineering,2020,37(02):81.[doi:10.19815/j.jace.2019.03059]
[7]丁 威,马亥波,舒江鹏,等.基于残差网络的混凝土结构病害分类识别研究[J].建筑科学与工程学报,2022,39(04):127.[doi:10.19815/j.jace.2021.10112]
　DING Wei,MA Hai-bo,SHU Jiang-peng,et al.Research on Classification and Recognition of Concrete Structure Diseases Based on Residual Network[J].Journal of Architecture and Civil Engineering,2022,39(02):127.[doi:10.19815/j.jace.2021.10112]
[8]任 伟,李敬泉,李晓路.带翼缘截面混凝土受压区等效应力图系数研究[J].建筑科学与工程学报,2022,39(06):87.[doi:10.19815/j.jace.2021.09078]
　REN Wei,LI Jing-quan,LI Xiao-lu.Study on Equivalent Stress Diagram Coefficient of Concrete Compression Zone with Flange Section[J].Journal of Architecture and Civil Engineering,2022,39(02):87.[doi:10.19815/j.jace.2021.09078]
[9]金伟良,刘振东,张 军.基于修正力磁模型的混凝土结构压磁疲劳模拟[J].建筑科学与工程学报,2024,41(04):1.[doi:10.19815/j.jace.2023.03071]
　JIN Weiliang,LIU Zhendong,ZHANG Jun.Piezomagnetic fatigue simulation of concrete structures based on modified magneto-mechanical model[J].Journal of Architecture and Civil Engineering,2024,41(02):1.[doi:10.19815/j.jace.2023.03071]

备注/Memo

备注/Memo:
更新日期/Last Update: 2017-03-30