Techno Press


Structural Engineering and Mechanics   Volume 15, Number 1, January 2003, pages 1-19
DOI: http://dx.doi.org/10.12989/sem.2003.15.1.001
 
A new bridge-vehicle system part I: Formulation and validation
Tommy H.T. Chan, Ling Yu, T.H. Yung and Jeffrey H.F. Chan

 
Abstract     [Full Text]
    This paper presents the formulation of a new bridge-vehicle system with validation using the field data. Both pitching and twisting modes of the vehicle are considered in the contribution of the dynamic effects in the bridge responses. A heavy vehicle was hired as a control vehicle with known axle weight, axle spacing and spring coefficients. The measured responses were generated from the control
vehicle running at a particular speed at a test span at Ma Tau Wai Flyover. The measured responses were acquired using strain gauges installed beneath the girder beams of the test bridge. The simulated responses were generated using BRVEAN that is a self-developed program based on the proposed bridge-vehicle
system. The validation shows that the bridge model is valid for representing the test bridge and the governing equations are valid for representing the motion of moving vehicles.
 
Key Words
    bridge-vehicle interaction; dynamic responses; eccentric beam model; Fast Fourier Transform; field test; impact on bridges; surface roughness; tire-suspension system.
 
Address
Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hunghom, Kolwoon, Hong Kong
Blasting and Vibration Research Department, Yangtze River Scientific Research Institute, 23 Huangpu Street, Wuhan, Hubei, 430010, P.R. China
T.Y. Lin, Hong Kong, Consulting Engineers Ltd., Hong Kong
Wong and Ouyang (Civil & Structural Engineering) Ltd., Hong Kong
 

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