[1]金辉,淳庆,华一唯.民国钢筋混凝土历史建筑的锈胀开裂寿命预测方法[J].东南大学学报(自然科学版),2020,50(5):797-802.[doi:10.3969/j.issn.1001-0505.2020.05.001]
 Jin Hui,Chun Qing,Hua Yiwei.Life prediction method for corrosion-induced crack of historical reinforced concrete buildings built in the Republic of China[J].Journal of Southeast University (Natural Science Edition),2020,50(5):797-802.[doi:10.3969/j.issn.1001-0505.2020.05.001]
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民国钢筋混凝土历史建筑的锈胀开裂寿命预测方法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
50
期数:
2020年第5期
页码:
797-802
栏目:
土木工程
出版日期:
2020-09-20

文章信息/Info

Title:
Life prediction method for corrosion-induced crack of historical reinforced concrete buildings built in the Republic of China
作者:
金辉淳庆华一唯
东南大学建筑学院, 南京 210096
Author(s):
Jin Hui Chun Qing Hua Yiwei
School of Architecture, Southeast University, Nanjing 210096, China
关键词:
民国钢筋混凝土建筑 方形钢筋 碳化系数 锈胀开裂 寿命预测
Keywords:
reinforced concrete buildings in the Republic of China square-section rebar carbonization coefficient corrosion-induced crack life predication
分类号:
TU375
DOI:
10.3969/j.issn.1001-0505.2020.05.001
摘要:
为准确评估使用方形钢筋的民国钢筋混凝土历史建筑的耐久性,对其锈胀开裂寿命的预测方法进行研究.首先,对9个民国钢筋混凝土历史建筑的混凝土构件进行现场检测分析,获得混凝土的抗压强度、混凝土保护层厚度、混凝土的碳化深度等数据,并据此对原有的碳化系数计算公式进行修正.然后,对民国方形钢筋进行电化学加速锈蚀试验,测量其临界锈蚀深度.结果表明:计算民国时期钢筋混凝土的碳化系数时,需引入修正系数1.16;针对圆形钢筋的临界锈蚀深度计算方法不适用于方形钢筋.民国钢筋混凝土历史建筑的锈胀开裂寿命基本为55~80 a.
Abstract:
To accurately evaluate the durability of historical reinforced concrete(RC)buildings using square steel rebars in the Republic of China, the life prediction method for corrosion-induced crack was studied. First, the components of nine historical RC buildings in the Republic of China were tested and analyzed. The concrete compressive strength, the concrete cover thickness of square steel rebars and the carbonation depth of concrete were obtained, and the existed calculation formula of the carbonization coefficient were modified according to these data. Then, the accelerated electrochemical corrosion experiments were carried out for the real square steel rebars in the Republic of China, and the critical corrosion depth of rebars were measured. The results show that the modified coefficient of 1.16 should be used during the calculation of the carbonization coefficient of the RC structures in the Republic of China. The calculation method for the critical corrosion depth of circular steel bars is not suitable for square steel bars. The corrosion-induced cracking life of the historical RC buildings in the Republic of China era is 55 to 80 a.

参考文献/References:

[1] 刘先觉. 中国近代建筑总览·南京篇[M]. 北京: 中国建筑工业出版社, 1992.
[2] Chun Q,Balen K, Pan J W. Experimental research on physical and mechanical performance of steel rebars in Chinese modern reinforced concrete buildings built during the Republic of China era from 1912 to 1949[J]. Materials and Structures, 2016, 49(9): 3679-3692. DOI:10.1617/s11527-015-0748-6.
[3] Liu Y,Weyers R E. Modeling the time-to-corrosion cracking in chloride contaminated reinforced concrete structures[J]. ACI Materials Journal, 1998, 95(6): 675-681. DOI:10.14359/410.
[4] Vu K, Stewart M G,Mullard J A. Corrosion-induced cracking: Experimental data and predictive models[J]. Aci Structural Journal, 2005, 102(5): 719-726. DOI:10.14359/14667.
[5] 牛荻涛. 混凝土结构耐久性与寿命预测[M]. 北京: 科学出版社, 2003: 10-23.
[6] 赵羽习. 钢筋锈蚀引起混凝土结构锈裂综述[J]. 东南大学学报(自然科学版), 2013, 43(5): 1122-1134.
  Zhao Y X. State-of-art of corrosion-induced cracking of reinforced concrete structures[J].Journal of Southeast University(Natural Science Edition), 2013, 43(5): 1122-1134.(in Chinese)
[7] Andrade C, Alonso C, Molina F J. Cover cracking as a function of bar corrosion: Part Ⅰ—Experimental test[J]. Materials and Structures, 1993, 26(8): 453-464. DOI:10.1007/bf02472805.
[8] Lu C H, Yuan S Q, Liu R G. Experimental and probabilistic analysis of time to corrosion-induced cover cracking for marine reinforced concrete structures[J].Corrosion Engineering Science and Technology, 2017, 52(2): 124-133. DOI:10.1080/1478422X.2016.1213082.
[9] Maaddawy T E, Soudki K. A model for prediction of time from corrosion initiation to corrosion cracking[J]. Cement & Concrete Composites, 2007, 29(3): 168-175. DOI:10.1016/j.cemconcomp.2006.11.004.
[10] 陆春华, 赵羽习, 金伟良. 锈蚀钢筋混凝土保护层锈胀开裂时间的预测模型[J]. 建筑结构学报, 2010, 31(2): 85-92.
  Lu C H, Zhao Y X, Jin W L.Modeling of time to corrosion-induced cover cracking in reinforced concrete structures[J]. Journal of Building Structures, 2010, 31(2): 85-92.(in Chinese)
[11] Rodriguez J, Ortega L M, Casal J, et al. Corrosion of reinforcement and service life of concrete structures [J]. Durability of Building Materials and Components, 1996(1): 117-126.
[12] 张伟平. 混凝土结构的钢筋锈蚀损伤预测及其耐久性评估[D]. 上海:同济大学, 1999.
[13] 中华人民共和国住房和城乡建设部. 既有混凝土结构耐久性评定标准:GB/T 51355—2019 [S]. 北京:中国建筑工业出版社, 2019.
[14] 淳庆, 潘建伍. 民国江浙地区钢筋混凝土结构寿命预测计算方法研究[J]. 文物保护与考古科学, 2014, 26(1): 29-33. DOI: 10.16334/j.cnki.cn31-1652/k.2014.01.006.
Chun Q, Pan J W. Research on the methods for calculation and prediction of the service life of reinforced concrete buildings built during the period of the Republic of China in Jiangsu and Zhejiang provinces [J].Sciences of Conservation and Archaeology, 2014, 26(1): 29-33. DOI:10.16334/j.cnki.cn31-1652/k.2014.01.006. (in Chinese)
[15] Chun Q, Koenraad V B, Han Y D. Comparison study on calculation methods of bending behaviour of Chinese reinforced concrete beams from 1912 to 1949 [J]. Journal of Southeast University(English Edition), 2015, 31(4): 529-534. DOI: 10.3969/j. issn.1003-7985.2015.04.017.
[16] 董运宏, 淳庆, 许先宝, 等. 民国建筑锈胀开裂时的临界锈蚀深度[J]. 浙江大学学报(工学版), 2017, 51(1): 27-37. DOI: 10.3785/j.issn.1008-973X.2017.01.004.
Dong Y H, Chun Q, Xu X B, et al. Critical corrosion depth of rebar of Republican Period reinforced concrete structures [J]. Journal of Zhejiang University(Engineering Science), 2017, 51(1): 27-37. DOI:10.3785/j.issn.1008-973X.2017.01.004. (in Chinese)
[17] 陈瑜, 吕德鹏, 杨放. 江苏美术馆旧址的安全评估与抗震鉴定[J]. 建筑科学, 2013, 29(3): 103-106. DOI: 10.13614/j.cnki.11-1962/tu.2013.03.006.
Chen Y, Lü D P, Yang F. Safety appraisal and seismic evaluation of old Jiangsu Provincial Art Museum [J]. Building Science, 2013, 29(3): 103-106. DOI:10.13614/j.cnki.11-1962/tu.2013.03.006. (in Chinese)
[18] 淳庆, 潘建伍. 民国钢筋混凝土建筑遗产的结构构造设计方法研究[J]. 中国文物科学研究, 2015(2): 85-90. DOI: 10.3969/j.issn.1674-9677.2015.02.017.
Chun Q, Pan J W. Research on structural configuration design of Chinese modern reinforced concrete buildings [J]. China Cultural Heritage Scientific Research, 2015(2): 85-90. DOI:10.3969/j.issn.1674-9677.2015.02.017. (in Chinese)
[19] 张嘉荪. 简明钢骨混凝土术[M]. 上海: 世界书局, 1948:71.
[20] Lu C H, Jin W L, Liu R G. Reinforcement corrosion-induced cover cracking and its time prediction for reinforced concrete structures[J]. Corrosion Science, 2011, 53(4): 1337-1347. DOI:10.1016/j.corsci.2010.12.026.
[21] 王雪松, 金贤玉, 田野, 等. 开裂混凝土中钢筋加速锈蚀方法适用性[J]. 浙江大学学报(工学版), 2013, 47(4): 565-574, 580. DOI: 10.3785/j.issn.1008-973X.2013.04.001.
Wang X S, Jin X Y, Tian Y, et al. Applicability of accelerated corrosion method of steel bars in cracked concrete structure [J]. Journal of Zhejiang University(Engineering Science), 2013, 47(4): 565-574, 580. DOI:10.3785/j.issn.1008-973X.2013.04.001. (in Chinese)
[22] Webster M P, Clark L A. The structural effect of corrosion-an overview of the mechanism [C]// Proceedings of 2000 Concrete Communication. Birmingham, UK, 2000:409-421.
[23] Legeron F, Paultre P. Prediction of modulus of rupture of concrete [J]. ACI Materials Journal, 2000, 97(2): 193-200. DOI:10.14359/823.
[24] 喻孟雄, 李少龙, 张少华, 等. 基于锈胀裂缝宽度的钢筋锈蚀深度计算模型[J]. 混凝土, 2014(11): 11-14, 23. DOI: 10.3969/j.issn.1002-3550.2014.11.003.
Yu M X, Li S L, Zhang S H, et al. Model for calculating the steel corrosion depth based on crack width[J].Concrete, 2014(11): 11-14, 23. DOI:10.3969/j.issn.1002-3550.2014.11.003. (in Chinese)

备注/Memo

备注/Memo:
收稿日期: 2019-03-18.
作者简介: 金辉(1993—), 男, 博士生; 淳庆(联系人), 男,博士,教授,博士生导师,cqnj1979@163.com.
基金项目: 国家自然科学基金资助项目(51778123)、江苏省重点研发计划资助项目(BE2017717)、江苏省文物局科研课题资助项目(2017SK02).
引用本文: 金辉,淳庆,华一唯.民国钢筋混凝土历史建筑的锈胀开裂寿命预测方法[J].东南大学学报(自然科学版),2020,50(5):797-802. DOI:10.3969/j.issn.1001-0505.2020.05.001.
更新日期/Last Update: 2020-09-20