Abstract
The present paper concerns the road-traffic induced vibration from a viaduct and in the nearby soil. The procedure is to take a hybrid technique utilizing the field measurement data with the FEM analysis for the vibration prediction. The vibration measurements are conducted for test-runs of a 20tf-truck and for the ordinary traffic flows. The investigation is made on the dynamic behavior of the viaduct and the wave propagation at site in view of the involved state-of-the-arts. The low frequency around 3Hz from the structural vibration modes are pointed out to be transmitted from the foundation toward far distance with less damping. The present simulation predicts the concerned ground vibrations with good accuracy and works for checking the validity of the measures at the structural side and for developing the mitigation measure by use of WIB (Wave Impeding Barrier) in ground.
