Jacking Technology for a Simply Supported Girder Bridge

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Numerous bridges have to be lifted to meet increased navigation capacity. However, no relevant technical standard for the jack-up technique is yet available. This paper presents a study on the integral lifting of simply supported girder bridge which implements the finite element method. Finite element analysis provides a reliable basis in controlling construction. Research shows that stress concentration is evident near support points in the lifting process. Thus, stress monitoring is necessary. These points should be near to the bridge web. Moreover, beam span and section rigidity should also be considered when jacking up a bridge. The value of allowable error in the jacking-up process decreases with increasing beam span or decreasing section stiffness. Therefore, jacking up a bridge will be safer when section rigidity is large enough and beam span is not extremely long. This paper offers tremendous reference value with regard to engineering projects.

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675-680

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December 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Chang-jie Xu, Lu-jun Guo, Gang Lin, Geng-geng Liu, Yu-quan Cao. Analysis on Integral Lifting Stress of Prestressed Concrete Bowstring Arched Bridge [J]. Urban Roads Bridge and Flood Control, 2010, (4): 50-53. (In Chinese).

Google Scholar

[2] Long Xiao, Qun-de Yue, Shi-hao Guo. Technical Research for Continuous beam jacking of Jinan Yanshan overpass [J]. Shanxi Architecture, 2009, 35(29): 293–294. (In Chinese).

Google Scholar

[3] Yang Zhao, Jin-feng Wang, Miao Pang. The integral lifting project of the Qifeng Bridge: Case study. J. Perform. Constr. Fac., 2012, 26(3): 353-361.

DOI: 10.1061/(asce)cf.1943-5509.0000211

Google Scholar

[4] Chao-liang Zhang, He-xin Zhang, Wei-liang Dong. Application of hydraulic synchronous jacking technology in bridge construction [J]. Chinese Hydraulics and Pneumatics, 2008(8): 65-68. (In Chinese).

Google Scholar

[5] Xin-min Wang. Numerical analysis of Engineering structure adopting to ANSYS [M]. Beijing: China Communications Press, 2007. (In Chinese).

Google Scholar

[6] Fiori C M, Daivd S A, Bridge Superstructure Lowering Operation U.S. 60 Widening, Mesa, Arizona [J]. Practice periodical On Structural Design And Construction, 2004, 9(2): 102–107.

DOI: 10.1061/(asce)1084-0680(2004)9:2(102)

Google Scholar