会议专题

Studies on Mechanical Model of Geometrically Pre-eccentric Optimization Based on a Small Radius Ramp Curved Bridge with Single Column in City

  Under the coupling action of bending and torsion are there such complex mechanical characteristics in a small radius ramp curved bridge with single column in city.Based on Midas/Civil software, a small radius ramp curved bridge with single column is studied in this paper.Under the combined action of the first phase of dead weight, the temperature gradient, the system temperature, the second phase of dead weight and vehicle load, the mechanical properties of a ramp curved beam bridge have been studied in detail for different pre-eccentricity.Then, it is under different eccentric actions that different results with the changes of such variations as support reaction, displacement, shear force, bending moment, torque moment and torsion deformation are discussed.Our investigation shows that reasonable pre-eccentric setting could greatly reduce internal force in the bridge and improve the torque distribution so as to optimize the distribution of internal force in bridge.

Pre-eccentric support Single column Small radius Optimization Internal forces

Zhigang Qi Jun Dong Dan Hu

School of Civil Engineering and Traffic Engineering,Beijing University of Civil Engineering and Architecture,Beijing,100044,China

国际会议

the 2012 International Conference on Vibration, Structural Engineering and Measurement (2012年振动、结构工程与测量国际会议(ICVSEM2012))

上海

英文

1618-1621

2012-10-19(万方平台首次上网日期,不代表论文的发表时间)