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ZHONG Xingu. ANALYSIS AND PREVENTION OF THE CRACKS IN CONTINUOUS PRESTRESSED CONCRETE BOX-GIRDER BRIDGES[J]. Engineering Mechanics, 2004, 21(S1): 221-230.
Citation: ZHONG Xingu. ANALYSIS AND PREVENTION OF THE CRACKS IN CONTINUOUS PRESTRESSED CONCRETE BOX-GIRDER BRIDGES[J]. Engineering Mechanics, 2004, 21(S1): 221-230.
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ANALYSIS AND PREVENTION OF THE CRACKS IN CONTINUOUS PRESTRESSED CONCRETE BOX-GIRDER BRIDGES

  • School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China

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  • Received Date: December 31, 1899
  • Revised Date: December 31, 1899
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  • In this paper, based on the analysis of the characters of continuous prestressed concrete Box-girder bridges and the reasons of cracking, cracks in them are classified into 9 types. Then a U.L formula of space analysis for variable cross-section beams is deduced, based on the theory of continuous medium, which can generally consider the secondary stress caused by distortion, lateral load distribution and warping. A program is also edited to do the liner & nonlinear analysis for concrete multi-cell box beams conveniently, the tension and the cracking regions deduced by which is consistent with that of survey on Huangpenxi Bridge.
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