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Impacting Factor Caused by Highway Bridge Deck Roughness

 Impacting Factor Caused by Highway Bridge Deck Roughness
Author(s): , ,
Presented at 17th IABSE Congress: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, Chicago, USA, 17-19 September 2008, published in , pp. 494-495
DOI: 10.2749/222137908796293686
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In order to analyse the interaction of highway bridge and vehicle, an analysis method of couple vibration between 1/2-four degree vehicle model and highway bridge is presented. According to the roa...
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Bibliographic Details

Author(s):


Medium: conference paper
Language(s): English
Conference: 17th IABSE Congress: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, Chicago, USA, 17-19 September 2008
Published in:
Page(s): 494-495 Total no. of pages: 7
Page(s): 494-495
Total no. of pages: 7
Year: 2008
DOI: 10.2749/222137908796293686
Abstract:

In order to analyse the interaction of highway bridge and vehicle, an analysis method of couple vibration between 1/2-four degree vehicle model and highway bridge is presented. According to the road power spectral density(PSD) function advised by GB/T 7031-1986(China Standard), the coefficients of different bridge deck roughness are obtained, which are taken as the inputting excitation of 1/2 vertical model for vehicle dynamics. The dynamic response of maximum moment and vertical displacement for the simply-supported beam and the continuous beam under different bridge deck roughness is analyzed by numerical simulation, and the variety rule of impacting factor is obtained. The result shows that the impacting factor increases non-linearly along with the grade of bridge deck roughness. The grade of bridge deck roughness is the most remarkable factor for the vehicle-bridge dynamic interaction.

Keywords:
dynamic response bridge engineering bridge deck roughness couple vibrations of vehicle-bridge impacting factor