Volume 7 Issue 6
. 
Turn off MathJax
Article Contents
Article Navigation >  Journal of Traffic and Transportation Engineering  > 2007  >  7(6): 90-95
WEN Qing-jie, YE Jian-shu. Long-term effect analysis of widening for concrete T-girder bridge[J]. Journal of Traffic and Transportation Engineering, 2007, 7(6): 90-95.
Citation: WEN Qing-jie, YE Jian-shu. Long-term effect analysis of widening for concrete T-girder bridge[J]. Journal of Traffic and Transportation Engineering, 2007, 7(6): 90-95.
shu

Long-term effect analysis of widening for concrete T-girder bridge

  • School of Transportation, Southeast University, Nanjing 210096, Jiangsu, China

More Information
  • Author Bio:

    Wen Qing-jie(1978-), male, doctoral student of engineering, + 86-25-83794206, wenqj-1@tom.com

    Ye Jian-shu(1948-), male, professor, +86-25-83794206, yejianshu@seu.edu.cn

  • Received Date: 2007-02-05
  • Publish Date: 2007-12-25
    Abstract
  • In order to analyze the long-term effect of widening for concrete T-girder bridge, the continuous change of stress resulted from the shrinkage and elastic modulus change of concrete in each period of time were studied, the basic formulas of shrinkage and creep were derived by using displacement method based on energy principle, the strain change of creep was analyzed by using incremental method, and corresponding calculation program was compiled.For testing the program, the calculation result of test pieces was compared with their measure result.Their relative error is 10% at the joint of new and old concretes, so the computation precision of the program is higher compared with algebraic method.The tensile stress at flange plate of new girder is 2.67 MPa under creep effect aroused by shrinkage stress and self-weight stress of new girder in 3 a, which may lead to concrete crack.For reducing the effect of shrinkage and creep, it is suggested that bridge should be widened after new girder is placed at least 6 months.

     

    • FullText(HTML)
  • loading
    • References(11)
  • [1]
    温庆杰, 叶见曙. 新旧钢筋混凝土梁横向拼接的收缩徐变效应分析[J]. 东南大学学报: 自然科学版, 2006, 36 (4): 596-600. doi: 10.3321/j.issn:1001-0505.2006.04.021

    Wen Qing-jie, Ye Jian-shu. Analysis of shrinkage and creepeffects in widening reinforced concrete girder[J]. Journal ofSoutheast University: Natural Science Edition, 2006, 36 (4): 596-600. (in Chinese) doi: 10.3321/j.issn:1001-0505.2006.04.021
    [2]
    Echigo S, Tachibana Y, Kitaji ma A. Newtype hybrid structureand practical analysis method of creep and shrinkage[J]. Con-struction and Building Materials, 1998, 12 (2/3): 93-103.
    [3]
    陈太聪, 苏成, 韩大建. 桥梁节段施工过程中混凝土收缩徐变效应仿真计算[J]. 中国公路学报, 2003, 16 (4): 55-58. doi: 10.3321/j.issn:1001-7372.2003.04.012

    Chen Tai-cong, Su Cheng, Han Da-jian. Si mulation calcula-tion of creep and shrinkage effects of concrete during segmen-tal construction of bridges[J]. China Journal of Highway andTransport, 2003, 16 (4): 55-58. (in Chinese) doi: 10.3321/j.issn:1001-7372.2003.04.012
    [4]
    Gardner N J, Zhao J W. Creep and shrinkage revised[J]. ACI Materials Journal, 1993, 90 (3): 236-246.
    [5]
    余报楚, 张哲, 李生勇, 等. 一种混凝土桥梁徐变的有效计算方法[J]. 哈尔滨工业大学学报, 2006, 38 (6): 994-996. doi: 10.3321/j.issn:0367-6234.2006.06.047

    Yu Bao-chu, Zhang Zhe, Li Sheng-yong, et al. Accuratemethod of calculating creep deformation andinternal force forconcrete bridge[J]. Journal of Harbin Institute of Technolo-gy, 2006, 38 (6): 994-996. (in Chinese) doi: 10.3321/j.issn:0367-6234.2006.06.047
    [6]
    张丽芳, 汪洁. 徐变计算理论及其在软件开发中的应用[J]. 西安建筑科技大学学报: 自然科学版, 2005, 37 (4): 509-513. https://www.cnki.com.cn/Article/CJFDTOTAL-XAJZ200504014.htm

    Zhang Li-fang, Wang Jie. Creep theory and its application in software development[J]. Journal of Xi an University of Ar-chitecture and Technology: Natural Science Edition, 2005, 37 (4): 509-513. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-XAJZ200504014.htm
    [7]
    范立础, 杜国华, 鲍卫刚. 桥梁结构徐变次内力分析[J]. 同济大学学报: 自然科学版, 1991, 19 (1): 23-32. https://www.cnki.com.cn/Article/CJFDTOTAL-TJDZ199101004.htm

    Fan Li-chu, Du Guo-hua, Bao Wei-gang. Analysis of con-crete bridges for secondaryinner force of creep[J]. Journal ofTongji University: Natural Science, 1991, 19 (1): 23-32. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TJDZ199101004.htm
    [8]
    颜东煌, 田仲初, 李学文, 等. 混凝土桥梁收缩徐变计算的有限元方法与应用[J]. 中国公路学报, 2004, 17 (2): 55-58. doi: 10.3321/j.issn:1001-7372.2004.02.012

    Yan Dong-huang, Tian Zhong-chu, Li Xue-wen, et al. Finiteelement method and applicationfor the shrinkage and creep ofconcrete bridges[J]. China Journal of Highway and Trans-port, 2004, 17 (2): 55-58. (in Chinese) doi: 10.3321/j.issn:1001-7372.2004.02.012
    [9]
    Bazant Z P. Prediction of concrete creep effects using age-ad-justed effective modulus method[J]. ACI Journal, 1972, 69 (4): 212-217.
    [10]
    王勋文, 潘家英. 按龄期调整有效模量法中老化系数x的取值问题[J]. 中国铁道科学, 1996, 17 (3): 12-23. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK603.001.htm

    Wang Xun-wen, Pan Jia-ying. Evaluating aging coefficientxin age-adjusted effective modulus method[J]. China Rail wayScience, 1996, 17 (3): 12-23. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGTK603.001.htm
    [11]
    刘健, 赵国藩. 新老混凝土粘结收缩性能研究[J]. 大连理工大学学报, 2001, 41 (3): 339-342. doi: 10.3321/j.issn:1000-8608.2001.03.019

    Liu Jian, Zhao Guo-fan. Study of shrinkage performance ofadherence of young on old concrete[J]. Journal of DalianUniversity of Technology, 2001, 41 (3): 339-342. (in Chinese) doi: 10.3321/j.issn:1000-8608.2001.03.019
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF
    XML

    Article Metrics

    Article views (446) PDF downloads(284) Cited by()
    Proportional views
    Related

    Copyright《Journal of Traffic and Transportation Engineering》编辑部陕ICP备05001904号-1

    Address ：Editorial Department of Journal of Traffic and Transportation Engineering, Chang 'an University, Middle Section of South Second Ring Road, Xi 'an, Shaanxi（710064） Tel：029-82334388 Email：jygc@chd.edu.cn

    All visit:Today's visit:

    Supported by: Beijing Renhe Information Technology Co. Ltd    

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return