Analysis of the Influence of Transverse Cracks of Bottom Slab for Box GirderStrength and Stiffness
[1]ZHANG Zhao-ning,HE Shuan-hai,ZHAO Yu.Analysis of the Influence of Transverse Cracks of Bottom Slab for Box GirderStrength and Stiffness[J].Journal of Zhengzhou University (Engineering Science),2011,32(06):18-21.
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
32
Number of periods:
2011 06
Page number:
18-21
Column:
Public date:
2011-11-10
- Title:
- Analysis of the Influence of Transverse Cracks of Bottom Slab for Box GirderStrength and Stiffness
- Keywords:
- box girder; crack; simulation; strength; stiffness
- CLC:
- TU448.23
- DOI:
- -
- Abstract:
- Cracks and other damage problem are often found in some parts of pre-stressed concrete continuousbox girder bridge,which has a direct iMPact on the usability,durability and security of the bridge. In order tofind out the change regularity of the strength and stiffness for the damaged bridge and provide the basis for thesafely assessment,repair and reinforcement of damaged bridge, the paper establishes the finite element modeland analyzes the strength and stiffness condition under different parameters,such as cracks width,cracksheight and cracks number of the bottom slab of a pre-stressed concrete continuous rigid frame bridge. The a-nalysis result shows that the bearing capacity of the damaged bridge decreases with the increase of crackswidth,cracks height and cracks number. Among parameters of cracks,more cracks width than other two pa-rameters has an effect on the strength and stiffness of the damaged bridge.Cracks height and number affect thebearing capacity of the damaged bridge equally.
- References:
- -
- Similar References:
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Last Update:
1900-01-01