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Title: A new bridge-vehicle system part II : parametric study
Authors: Chan, THT
Yu, L
Yung, TH
Chan, JHF
Keywords: Axle spacing parameter
Bridge-vehicle interaction
Dynamic transverse load distribution
Frequency ratio
Impact factor
Mass ratio
Speed parameter
Transverse impact factor
Issue Date: 2003
Publisher: Techno Press
Source: Structural engineering and mechanics, 2003, v. 15, no. 1, p. 21-38 How to cite?
Journal: Structural engineering and mechanics 
Abstract: The formulation of a new bridge-vehicle system using shell with eccentric beam elements has been introduced in a companion paper (Part I). The new system takes into account of the contribution of the twisting and pitching modes of vehicles to the bridge responses. It can also be used to study the dynamic transverse load distribution of a bridge. This paper presents a parametric study on the impact induced by one vehicle or multi-vehicle running across a bridge using the proposed model. Several parameters were considered as variables including the mass ratio, the speed parameter, the frequency ratio and the axle spacing parameter to investigate their effects on the impact factor. A total number of 189 cases were carried out in this parametric study. Within the realistic range of vehicle considered, the maximum impact factors could be 2.24, 1.78 and 1.49 for bridges with spans 10m, 20m and 30m respectively.
ISSN: 1225-4568
EISSN: 1598-6217
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