|本期目录/Table of Contents|

[1]苑溦,刘振亮,宗莉娜,等.海洋环境下钢骨混凝土桥墩时变抗震性能分析[J].南京工业大学学报(自然科学版),2020,42(03):342-350.
 YUAN Wei,LIU Zhenliang,ZONG Lina,et al.Time-dependent seismic performance analysis of steel reinforced concrete bridge piers in the marine environment[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2020,42(03):342-350.
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海洋环境下钢骨混凝土桥墩时变抗震性能分析()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
42
期数:
2020年03期
页码:
342-350
栏目:
出版日期:
2020-05-20

文章信息/Info

Title:
Time-dependent seismic performance analysis of steel reinforced concrete bridge piers in the marine environment
文章编号:
1671-7627(2020)03-0342-09
作者:
苑溦1刘振亮2宗莉娜1于艳春1蔡忠奎3
1.江苏开放大学 建筑工程学院,江苏 南京 210036; 2.哈尔滨工业大学 土木工程学院,黑龙江 哈尔滨 150090; 3.南京工业大学 土木工程学院,江苏 南京 211800
Author(s):
YUAN Wei1 LIU Zhenliang2 ZONG Lina1 YU Yanchun1 CAI Zhongkui3
1. School of Civil Engineering and Architecture, Jiangsu Open University, Nanjing 210036, China; 2. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China; 3. College of Civil Engineering, Nanjing Tech University, Nanjing 211800, China
关键词:
钢骨混凝土桥墩 初始锈蚀时间 退化模型 抗震性能 全服役期 海浊环境
Keywords:
steel reinforced concrete bridge piers corrosion initiation time deterioration model seismic performance service life marine environment
分类号:
U443.22
文献标志码:
A
摘要:
借助有限差分法确定考虑多重环境因素影响的钢骨混凝土桥墩内置钢材初始锈蚀时间,基于海蚀环境中纵筋截面面积和屈服强度时变退化公式,建立钢骨混凝土桥墩内部型钢力学性能劣化表征方法,基于OpenSees软件建立考虑腐蚀损伤的钢骨混凝土桥墩全服役期内有限元纤维模型。通过滞回分析及延性分析,了解和掌握全寿命服役过程中钢骨混凝土桥墩的腐蚀损伤和性能劣化机制,探究腐蚀现象对于耗能能力、延性、强度和峰值位移反应的影响规律。结果表明:保护层厚度显著影响锈蚀初始发生时间,型钢腹板性能退化程度对构件性能的影响程度远远小于翼缘。翼缘锈蚀开始后,桥墩抗震性能出现明显的退化现象。
Abstract:
The corrosion initiation time of the steels in the steel reinforced concrete bridge piers was determined based on the finite difference method, with the consideration of multiple environmental factors. The method to describe the deterioration of mechanical property of steel was proposed based on the time-dependent sectional area and yield strength equations of the circular ribbed bars in the marine environment. Finite element models built by OpenSees were to consider the corrosion-induced damage in the whole service life. From hysteretic analysis and ductility analysis, the degradation mechanism, energy dissipation capacity, ductility, strength and peak displacement of steel reinforced concrete bridge piers were investigated. Results indicated that the corrosion initiation time was significantly affected by the cover depth, and the influence of deterioration of web plate on structural seismic performance was far less than the flange. The obvious deterioration of seismic performance was observed after the initiation of flange corrosion.

参考文献/References:

[1] CORONELLI D,GAMBAROVA P.Structural assessment of corroded reinforced concrete beams:modeling guidelines[J].Journal of Structural Engineering-ASCE,2004,130(8):1214.
[2] OU Y C,FAN H D,NGUYEN N D.Long-term seismic performance of reinforced concrete bridges under steel reinforcement corrosion due to chloride attack[J].Earthquake Engineering and Structural Dynamics,2013,42(14):2113.
[3] ALIPOUR A,SHAFEI B,SHINOZUKA M.Performance evaluation of deteriorating highway bridges located in high seismic areas[J].Journal of Bridge Engineering,2010,16(5):597.
[4] 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.
[5] FU X,CHUNG D D L.Effect of corrosion on the bond between concrete and steel rebar[J].Cement and Concrete Research,1997,27(12):1811.
[6] 李超,李宏男.考虑氯离子腐蚀作用的近海桥梁结构全寿命抗震性能评价[J].振动与冲击,2014,33(11):70.
[7] 谷音,李晓芳.考虑氯离子侵蚀的近海桥梁结构地震易损性分析[J].应用基础与工程科学学报,2019,27(5):109.
[8] 张龙建,方从启,张俊萌,等.受腐蚀钢筋混凝土桥墩抗震性能研究[J].工程抗震与加固改造,2014,36(4):67.
[9] 张菊辉,凌晓政,梁磊,等.氯盐侵蚀下的钢筋均匀与非均匀锈蚀研究进展[J].混凝土,2016(10):25.
[10] ZANINI M A,PELLEGRINO C,MORBIN R,et al.Seismic vulnerability of bridges in transport networks subjected to environmental deterioration[J].Bulletin of Earthquake Engineering,2013,11(2):561.
[11] ESTES A C,FRANGOPOL D M.Bridge lifetime system reliability under multiple limit states[J].Journal of Bridge Engineering,2001,6(6):523.
[12] MARTIN-PEREZ B,ZIBARA H,HOOTON R D,et al.A study of the effect of chloride binding on service life predictions[J].Cement and Concrete Research,2000,30(8):1215.
[13] 金伟良,赵羽习.混凝土结构耐久性研究的回顾与展望[J].浙江大学学报(工学版),2002,36(4):371.
[14] BIONDINI F,CAMNASIO E,PALERMO A.Lifetime seismic performance of concrete bridges exposed to corrosion[J].Structure and Infrastructure Engineering,2014,10(7):880.
[15] CHOE D E,GARDONI P,ROSOWSKY D,et al.Probabilistic capacity models and seismic fragility estimates for RC columns subject to corrosion[J].Reliability Engineering & System Safety,2008,93(3):383.
[16] DU Y G,CLARK L A,CHAN A H C.Residual capacity of corroded reinforcing bars[J].Magazine of Concrete Research,2005,57(3):135.
[17] 李立峰,吴文朋,胡思聪,等.考虑氯离子侵蚀的高墩桥梁时变地震易损性分析[J].工程力学,2016,33(1); 163.
[18] 刘志杰.钢筋混凝土桥梁耐久性设计探讨[D].呼和浩特:内蒙古农业大学,2009.
[19] RODRIGUEZ J,ANDRADE C.A validated user’s manual for assessing the residual service life of concrete structures[R].Madrid:DG Enterprise,2001.
[20] MAZZONI S,MCKENNA F,SCOTT M H,et al.Opensees command language manual[M].Berkeley:Pacific Earthquake Engineering Research Center,2007.
[21] YUAN W,GUO A X,LI H.Seismic failure mode of coastal bridge piers considering the effects of corrosion-induced damage[J].Soil Dynamics and Earthquake Engineering,2017,93:135.
[22] 张大长,孙伟民,陆伟东.RC结构二维非线性有限元分析模型的探讨[J].南京工业大学学报(自然科学版),2005,27(4):1.

备注/Memo

备注/Memo:
收稿日期:2019-11-17
基金项目:国家自然科学基金(51908251,51908283); 江苏省高等学校自然科学研究面上项目(19KJB560002,19KJB560013)
作者简介:苑溦(1988—),女,讲师,E-mail:13b933008@hit.edu.cn; 蔡忠奎(联系人),讲师,E-mail:zhongkuicai@njtech.edu.cn.
引用格式:苑溦,刘振亮,宗莉娜,等.海洋环境下钢骨混凝土桥墩时变抗震性能分析[J].南京工业大学学报(自然科学版),2020,42(3):342-350.
YUAN Wei, LIU Zhenliang, ZONG Lina, et al. Time-dependent seismic performance analysis of steel reinforced concrete bridge piers in the marine environment[J].Journal of Nanjing Tech University(Natural Science Edition),2020,42(3):342-350..
更新日期/Last Update: 2020-05-31