THEORY FOR VEHICLE-BRIDGE COUPLING VIBRATION OF STEEL-CONCRETE COMPOSITE GIRDERS WITH HPC PRECAST PANELS

Author(s): Yiqiang Xiang, Zheng Qiu, Sheng Zhu and Bishnu Gupt Gautam
Paper category: Proceedings
Book title: Proceedings of the 2nd International Conference on UHPC Materials and Structures (UHPC2018-China)
Editor(s): Caijun Shi and Baochun Chen
ISBN: 978-2-35158-219-0
e-ISBN: 978-2-35158-220-6
Publisher: RILEM Publications SARL
Publication year: 2018
Pages: 648-664
Total Pages: 17
Language : English

Abstract: This article simplifies a vehicle to an in-plane three-axis vehicle model with five degrees of
freedom. Aiming at simulating the dynamic characteristics of the steel-concrete composite
girder (SCCG) with high-performance concrete (HPC) precast panels connected by group
studs, the differential equations of vehicle and girder vibration are established by considering
mass, stiffness and damping of the different vehicle axles and road surface roughness of the
vehicle-bridge coupling model. The theoretical method of analyzing the SCCG with HPC
precast panels is proposed by considering compatibility conditions between wheels and panels.
At the same time, combining a theoretical model of the vehicle with a FEM numerical model
of the SCCG with slippage between steel beams and HPC precast panels, the corresponding
analysis application software is programmed on Matlab and ANSYS platform. Compared
with the existing results gained by the coupling vehicle-bridge vibration effects of a simply
supported beam bridge without slippage, the correctness and validity of the proposed method
is verified. On this basis, comparison of dynamic responses of a simply supported SCCG with
and without slippage is made, and the results indicate that the vertical deflection and the
principal stress with slip effect are increased by 6.83% and 4.44% than that without slip effect.
So, when calculating the dynamic response of SCCG with HPC precast panels connected by
group studs, slip effects between concrete panels and steel girders are not negligible.

Online publication : 2018
Publication type : full_text
Public price (Euros) : 0.00