SEGJ Technical Conference

Prediction and verification of ground and building shaking accompanying a vehicles run of an elevated bridge

Abstract About the No.4 Tokai line (elevated bridge road) of the Nagoya highway, prediction of the ground shaking which occurs by run of vehicles was performed in advance of construction. This time, with completion of an elevated bridge, field experiment was carried out and the vibration prediction technique of a past year and the prediction result were verified. As a result, although the equivalent excitation force by a level difference driving experiment was about of value presumed from the experiment of past year 1/2, the predicted value in a building was almost in agreement with the predicted value of a past year. Level difference vibration is greatly reduced at the time of transfer in a building, and 20 Hz etc. excels in a building. On the other hand, it was the same distribution when the transfer function of the 20-Hz foundation of a past year and the current fiscal year was compared. This is considered to be the key factor which became almost equivalent.