Study on Precast Concrete Beams on the Longitudinal Bearings

Abstract:

A method of prefabricating beam on bridge floor is sometimes employed in mountain difficult terrain. Four forms of longitudinal pedestal layout and three analysis cases obtained by orthogonal analysis method were drawn up, the mechanical behavior of the tool girder were studied by the finite element software and the role of deck pavement for tool girder was discussed. The results show that when the end of pedestal was situated in mid-span, the tool girder will reach the most disadvantageous status. Moreover, reinforced concrete deck pavement not only can improve the stiffness and integrity of the tool girder, but also can effectively decrease internal forces and deformations of the tool girder.

• Periodical: Advanced Materials Research (Volume 676)
• Pages: 76-79
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.676.76
• Online since: March 2013
• Authors: Juan Juan Wen, Li Yun Yi
• Keywords: Beam Prefabrication on Bridge Floor, Deck Pavement, Pedestal Arrangement, Tool Girder

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