Volume 9 Issue 2
. 
Turn off MathJax
Article Contents
Article Navigation >  Journal of Traffic and Transportation Engineering  > 2009  >  9(2): 39-44
Next Previous
ZHOU Xu-hong, QIAO Peng, DI Jin, LU: Zhong-da, CUI Ting. Shrinkage and creep effects of long-span simple-supported-to-continuous box girder bridge[J]. Journal of Traffic and Transportation Engineering, 2009, 9(2): 39-44. doi: 10.19818/j.cnki.1671-1637.2009.02.008
Citation: ZHOU Xu-hong, QIAO Peng, DI Jin, LU: Zhong-da, CUI Ting. Shrinkage and creep effects of long-span simple-supported-to-continuous box girder bridge[J]. Journal of Traffic and Transportation Engineering, 2009, 9(2): 39-44. doi: 10.19818/j.cnki.1671-1637.2009.02.008
shu

Shrinkage and creep effects of long-span simple-supported-to-continuous box girder bridge

doi: 10.19818/j.cnki.1671-1637.2009.02.008
  • 1.

    School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, Gansu, China

  • 2.

    School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China

More Information
  • Author Bio:

    ZHOU Xu-hong(1956-), male, professor, PhD, +86-29-82334828, zxh@gfscw.cnzxh@gfscw.cn

  • Received Date: 2008-12-25
  • Publish Date: 2009-04-25
    Abstract
  • The stress distributions and deformations of long-span simple-supported-to-continuous box girder bridge during different construction stages were calculated by bar finite element models. The influence of prestressed bar's second-time stretching on shrinkage and creep effects was studied. Taking the 6×70 m continuous box girder bridge as an example, according to different types of calculating methods, including the original algorithm of aging theory, the modified algorithm of aging theory, the algorithm in the annex of JTJ 023—85 Code and the algorithm in the annex of JTG D62—2004 Code, the influences of shrinkage and creep effects on the stresses and deformations of box girders during simple-supported stage and continuous stage were compared. Computational result shows that the maximum influencing discrepancies of stresses at mid spans and supporting points are within 15%, and the maximum influencing discrepancies of deflections at the mid-sections of end span, side span and midspan are separately 36%, 79% and 54%. The deflection calculated by the algorithm in the annex of JTJ 023—85 Code is smallest, while that calculated by the algorithm in the annex of JTG D62—2004 Code is biggest and also is closest to the actual measured value. It's confirmed that the theoretic analysis of shrinkage and creep effects is reliable.

     

    • FullText(HTML)
  • loading
    • References(10)
  • [1]
    WANG Jian, FANG Zhi. Analysis and field measurement of concrete box girder bridges for shrinkage and creep effects[J]. China Civil EngineeringJournal, 2008, 41(1): 70-81. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-TMGC200801013.htm
    [2]
    HE Yi-bin. Study on post creep deformation of long-span concrete continuous bridge with ballastless tracks[J]. Journal of the China Rail way Society, 2008, 30(4): 120-124. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-TDXB200804024.htm
    [3]
    YAN Dong-huang, TI AN Zhong-chu, LI Xue-wen, et al. Finite element method and application for the shrinkage[J]. China Journal of Highway and Transport, 2004, 17(2): 55-58. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL200402012.htm
    [4]
    QI N Shi-hong, DI NG Zhi-chao, HE Xiong. Experi ment on shrinkage and creep of prestressed steel reinforced concrete member[J]. China Journal of Highway and Transport, 2008, 21(4): 74-80. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL200804012.htm
    [5]
    WANG Hua, XUE Wei-chen. Deflections of steel-concrete composite beams due to shrinkage and creep[J]. Journal of Chang an University: Natural Science Edition, 2004, 24(1): 56-60. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200401014.htm
    [6]
    LEI Zi-xue, YAN Xing-wei, DONG San-sheng. Effect of shrinkage and creep of concrete on curved steel-concrete composite box girder bridges[J]. Journal of Chang an University: Natural Science Edition, 2008, 28(5): 77-80. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200805019.htm
    [7]
    CAO Guo-hui, FANG Zhi. Experi mental study on the long-term behavior of concrete continuous box girders[J]. China Civil Engineering Journal, 2008, 41(9): 83-89. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-TMGC200809014.htm
    [8]
    BAZANT Z P. Prediction of concrete creep effects using ageadjusted effective modulus method[J]. ACI Journal, 1972, 69(4): 212-217.
    [9]
    CHEN Tai-cong, SU Cheng, HAN Da-jian. Si mulation calculation of creep and shrinkage effects of concrete during segmental construction of bridges[J]. China Journal of Highway and Transport, 2003, 16(4): 55-58. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL200304012.htm
    [10]
    XIANG Mu-sheng, ZHANG Shi-biao, ZHANG Kai-yin, et al. Control technique for construction of long span prestressed concrete bridge[J]. China Journal of Highway and Transport, 2002, 15(4): 38-42. (in Chinese) http://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL200204011.htm
    • Relative Articles
    • Supplements(0)
    • Cited By

Catalog

    Get Citation
    PDF
    XML

    Article Metrics

    Article views (1635) PDF downloads(1068) Cited by()
    Related

    Website copyright Journal of Traffic and Transportation Engineering Editorial Department陕ICP备05001904号-1

    Address ：Editorial Department of Journal of Traffic and Transportation Engineering, Chang'an University, Middle Section of South 2nd Ring Road, Xi'an, China（710064） Tel：029-82334388 Email：jygc@gfscw.cn

    All visit:Today's visit:

    Supported by: Beijing Renhe Information Technology Co. Ltd    

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return