抄録
Many viaducts and bridges have been aging in Japan and various types of damage are reported. In order to maintain them properly, we have to have a FEM model which predicts traffic-induced response accurately. For this purpose, extensive measurement of traffic-induced response such as accelerations and strains was carried in 6 spans of the viaducts in Tokyo Metropolitan Expressway. This paper describes the results of this measurement and the individual difference of the responses among the spans is also discussed. The responses under a 25-tonsf truck computed by a FEM model using the measure road roughness is provided and some discussions on the predictability are made.
