Impacting Factor Caused by Highway Bridge Deck Roughness
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Détails bibliographiques
| Auteur(s): |
Yifan Song
Rongfeng Chen Shuanhai He |
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | 17th IABSE Congress: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, Chicago, USA, 17-19 September 2008 | ||||
| Publié dans: | IABSE Congress Chicago 2008 | ||||
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| Page(s): | 494-495 | ||||
| Nombre total de pages (du PDF): | 7 | ||||
| Année: | 2008 | ||||
| DOI: | 10.2749/222137908796293686 | ||||
| Abstrait: |
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. |
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