Numerical Analysis of Reasonable Diaphragm Section Size of Concrete T Girder
[1]TANG Xianxi,XU Yue.Numerical Analysis of Reasonable Diaphragm Section Size of Concrete T Girder[J].Journal of Zhengzhou University (Engineering Science),2010,31(01):39-.
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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:
39-
Column:
Public date:
2010-01-30
- Title:
- Numerical Analysis of Reasonable Diaphragm Section Size of Concrete T Girder
- Keywords:
- bridge engineering; concrete T girder; diaphragm; reasonable section size; deflection; tensilestress of reinforcement
- CLC:
- -
- DOI:
- -
- Abstract:
- In order to study the reasonable diaphragm height and thickness of concrete T girder bridge，56group ANSYS finite element models of concrete simply supported girders were built，stress performance ofmodels have been analyzed under the centre load and side load．The analysis result indicates that some aspectsof girders and diaphragms stress performance achieved suitable values when the diaphragm height within limitsof 54％一8 l％of the girder rib height and the thickness of diaphragm is less than 20 cm．these aspects include：the mid span deflection of girders，the maximum longitudinal tensile stress of reinforcements in the midspan，and the transverse tensile stress of reinforcements at the bottom of intermediate diaphragm central position．Therefore．the reasonable values of diaphragm height should be taken during 54％一8 l％of girder ribheight，and the reasonable values of diaphragm thickness should be taken during 1 2 cm一20 cm，specific values should be taken according to the practice of engineering during these ranges．
- References:
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Last Update:
1900-01-01