Dissertation > Transportation > Road transport > Bridges and Culverts > Structural principles, structural mechanics

Research on the Key Technique for Large Span Continuous Rigid Frame Bridge with High Piers

Author ChenMi
Tutor TangJiShun
School Southwest Jiaotong University
Course Bridge and Tunnel Engineering
Keywords Continuous Rigid Frame Bridge High pier Internal forces Temperature effect Stability
CLC U441
Type Master's thesis
Year 2005
Downloads 339
Quotes 12
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With the development of the cause of the bridge construction , continuous rigid frame bridge is also widely used and developed , and gradually to the large cross , gentle direction , so that the structural stability and temperature issues have become increasingly prominent , therefore , - span continuous the study of mechanical properties of rigid frame remained very necessary . The Chongqing in Fengjie Mugua River Bridge engineering background , combined with the characteristics of the design of Bridge Pier , comparative analysis of the case of different lengths with single box pier and double limb thin-walled pier 11 different types of piers of a bridge structure various mechanical properties . First calculate 11 different piers bending stiffness and the stiffness of the anti- push , on this basis , Chapter 3 different types of piers of a bridge structure in the largest stages of internal forces and deformation of the cantilever and the use of stage constant live load due to internal forces and deformation , and the form of a chart comparing the calculation results of the key sections and concluded ; Chapter 4 different types of piers bridge span structures by internal forces and deformation the nonlinear variable temperature after the pier with the longest cantilever stage , as well as the use of phase pier internal forces , and by the uniform temperature change and non-linear temperature change through the form of a chart comparing the calculation results of some of the key sections and concluded ; Chapter 5 different types of piers in the largest cantilever concluded by comparing different types of piers bridge across a first-order structural instability critical factor and different instability modes , stability and use phases . Concluded that the existing problems and the future development direction .

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