Volume 27 Issue 增刊I
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ZENG Qing-xiang, . A REVIEW OF CRACK PREVENTION IN PRESTRESSED CONCRETE BOX GIRDER BRIDGES[J]. Engineering Mechanics, 2010, 27(增刊I): 184-188.
Citation: ZENG Qing-xiang, . A REVIEW OF CRACK PREVENTION IN PRESTRESSED CONCRETE BOX GIRDER BRIDGES[J]. Engineering Mechanics, 2010, 27(增刊I): 184-188.
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A REVIEW OF CRACK PREVENTION IN PRESTRESSED CONCRETE BOX GIRDER BRIDGES

  • (1. State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou, Guangdong 510640, China; 2. School of Civil Engineering & Architecture, Wuyi University, Jiangmen, Guangdong 529020, China)

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  • Received Date: December 31, 1899
  • Revised Date: December 31, 1899
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    • Abstract
  • Prestressed concrete box girder is widely applied in bridge structures for its favorable mechanical performance. The cracking prevention in concrete box girder bridges is universally concerned in the stages of structural design, construction and service. Cracks in prestressed concrete box girder are classified into two categories, load-related cracks and load-unrelated cracks. The formation mechanism, properties and the main influential factors of cracks are analyzed. The major crack prevention measures are also discussed. In conclusion, many crucial problems about crack prevention research in prestressed concrete box girders are pointed out from the aspects of design theory, prestress loss evaluation of strands and experimental investigation. Some new suggestions are given for the further study of crack prevention in prestressed concrete box girder bridges.
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