Jack-up Scheme of Bearing Replacement Influence on the Structural Performance of Small Box Girder Bridge
[1]LI Jingbin,CHEN Huai,GE Sujuan.Jack-up Scheme of Bearing Replacement Influence on the Structural Performance of Small Box Girder Bridge[J].Journal of Zhengzhou University (Engineering Science),2010,31(01):43-.
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
31
Number of periods:
2010 01
Page number:
43-
Column:
Public date:
2010-01-30
- Title:
- Jack-up Scheme of Bearing Replacement Influence on the Structural Performance of Small Box Girder Bridge
- Keywords:
- bridge engineering; small box girder; finite element method; jack-up construction program; mechanical properties
- CLC:
- -
- DOI:
- -
- Abstract:
- The Zhenfengou Bridge is asupported-continuous prestressed concrete small box-girder bridge，which is bearing replacements after damaging，is taken as the object to study in this thesis．The finite elementsoftware MIDAS／Civil is applied to set up the bridge’S FEM model and the bridge is calculated during thewhole construction stages．Two kinds of jack—up construction programs are considered，one is the whole jack·up construction program and the other is the partial jack-up construction program．The shear forces of the piertop，the bending moments of the midspan and the bending moments of the pier top both in the two programsare compared．The calculation results show，the 8mm maximum jack-up route is rational．From the opinion ofthe bridge’8 superstructure load bearing reasonability，the whole jack·up construction program is better thanthe partial jack—up construction program．The calculation results can be a reference for the similar project．
- References:
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Last Update:
1900-01-01