Numerical Study on the Vibrational Serviceability of Flexible Singel Span Bridges with different Structural Systems under Traffic Load

Bridge vibration is the major focus of environmental issues, especially in urban areas where the ground is soft. The structural system of the bridge greatly influences the ergonomic serviceability of the bridge, infrasound and ground vibration by vehicular live load. This paper discusses the vibrational serviceability of bridges, considering the interaction between vehicular live load and the structural systems of the bridge. The numerical approach with Finite Element Analysis was conducted to understand and evaluate the fundamental dynamic behaviour of flexible single span bridges under vehicular live load for four types of different structural systems, including the adjacent approach parts of the bridges.