A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Research on Deflection and Cracking of Prestressed Concrete Continuous Girder Bridge
Through the checking comparison of example bridge, to analysis the major causes of the cracking and too much deflection for prestressed concrete continuous box girder bridge. Calculated weak position and the current presence of cracks in the bridge position basically consistent, so cracks mainly caused by the prestress loss, concrete creep and the temperature effect, the structure stiffness weakened after cracking, then the actual mid-span deflection is greater than the calculated values bound. Therefore, the cracking and too much deflection appear simultaneous and mutual promote. The view that by improving the mechanical behavior of box girders, design parameters optimization, just the fundamental solution to cracking and too much deflection, also, several key issues need study to be addressed.
Research on Deflection and Cracking of Prestressed Concrete Continuous Girder Bridge
Through the checking comparison of example bridge, to analysis the major causes of the cracking and too much deflection for prestressed concrete continuous box girder bridge. Calculated weak position and the current presence of cracks in the bridge position basically consistent, so cracks mainly caused by the prestress loss, concrete creep and the temperature effect, the structure stiffness weakened after cracking, then the actual mid-span deflection is greater than the calculated values bound. Therefore, the cracking and too much deflection appear simultaneous and mutual promote. The view that by improving the mechanical behavior of box girders, design parameters optimization, just the fundamental solution to cracking and too much deflection, also, several key issues need study to be addressed.
Research on Deflection and Cracking of Prestressed Concrete Continuous Girder Bridge
Guo, Fan (author) / Yang, Yong-Qing (author) / Huang, Sheng-Qian (author)
2013
4 Seiten
Conference paper
English
Research on Deflection and Cracking of Prestressed Concrete Continuous Girder Bridge
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Research on Deflection and Cracking of Prestressed Concrete Continuous Girder Bridge
| Trans Tech Publications | 2013
Continuous prestressed concrete girder bridge in France
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