Research on the Effect of Width-Span Ratio on the Bridge Impact Coefficient

Abstract:

In this paper, the bridge impact coefficient was researched under conditions of the same section form and different width-span ratio. Five bridge models were set up based on the finite element method. Static and dynamic load simulation analysis for the same form of bridge was conducted firstly. Then the impact coefficient was calculated. Finally, According to the variation of impact coefficient along with the bridge width-span ratio, the method of probabilistic statistical regression analysis is applied to analyze the changing rule of the impact coefficient change with width-span ratio. Results showed that the influence of width-span ratio on impact coefficient should considered preferably for ordinary highway bridges with its width-span ratio less than 1. But for taxiway bridges which the width-span ratio is generally between 2 to 3, the influence of width-span ratio on impact coefficient can be ignored.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 1670-1673
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.1670
• Online since: September 2013
• Authors: Chun Xiang Qi, Yu Huan Gao, Qing Zhang An
• Keywords: Dynamic Analysis, Impact Coefficient, Reinforced Concrete (RC) Beam, Static Analysis, Width-Span Ratio

References

[1] Ministry of communications of the people's Republic of China. JTG D 60-2004 General Code for Design of Highway Bridges and Culverts [s]. Beijing : People's transportation press , 2004.

[2] Wang Haicheng, Shi Shangwei . Analysis of Bridge Impact Coefficient Influence Factor and the Deviation Formation[J]. Journal of Chongqing Jiaotong University ( Natural Science Edition ) , 2007, 26(5): 25－28.

[3] Wang Xiejun, Zhang Wei. The Analysis of Dynamic Impact Coefficient of Bridge under car load [J] . Journal of Vibration and Shock , 2007，26(6)：125－128.

[4] Li Longhai, Zhang Xianmin. Experimentation Analysis of Relation Between Impact Factor and Bridge Floor Roughness [J] . Journal of Civil Aviation University of China , 2009，27(1)：14－18.

[5] Wang Guichun, Pan Wenwu. The Analysis of Coordination Conditions in Railway Bridge and Vehicle Dynamic Interaction[J] . Railway Construction , 2006(12)：1－3.