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The Study of the Influence on Structural Behavior of Curved Box Girder Bridge Caused by Temperature Field and Temperature Stress

Author: SuDan
Tutor: LuWenLiang
School: Beijing Jiaotong University
Course: Bridge and Tunnel Engineering
Keywords: Temperature field Temperature stress Geometric parameters Curved Box Girder Bridge Force performance
CLC: U441.5
Type: Master's thesis
Year: 2008
Downloads: 110
Quote: 1
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Abstract


Curved Box Girder Bridge is an important bridge type in modern traffic engineering . Cloverleaf highways and city roads , mountain highway route designing exhibition line curved girder bridges , you can greatly reduce , if necessary lots curved girder bridge is a necessary means of transport links in all directions ; length, with considerable economic benefits . However , some of the reinforced concrete curved box girder bridges in the operations process beam radially outwardly even more apparent rotation overturning trend . The study shows that the temperature change is the cause of this phenomenon . Qinhuangdao-Shenyang line Liaohe Bridge 32m concrete box girder and the Lok Ma Bridge , Quzhou City , Zhejiang Province , the temperature measured data , this thesis is based on the use of finite element analysis software ANSYS to analyze the temperature field of the two box girder bridge verify the ANSYS temperature field analysis of the correctness of the results ; thus calculated using ANSYS software curved box girder bridges temperature field of the different geometric parameters , derived the different box girder geometric parameters of the curved box girder bridges temperature field investigated . The basis for the calculation of the temperature field with ANSYS to calculate the temperature stress of the curved box girder bridges , analyze the impact of different factors on temperature effects , and from the design and construction of proposed measures and recommendations . I hope this thesis curved box girder bridges temperature gradient provides temperature field , the temperature effect factors and prevent beam produced large radial displacement of the reality reference . Curved box girder structure of the state-of-the-art technology , safe, reliable, durable applies to certain theoretical significance and practical value .

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CLC: > Transportation > Road transport > Bridges and Culverts > Structural principles, structural mechanics > Stress analysis, thermal stress
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