Abstract: This paper describes further field measurements of the impact fraction,

Abstract: Earlier impact studies on a small‐span bridge under service loads gave impact fractions much higher than, those specified by AASHTO. This paper represents the first stage of a program to identify the high‐impact vehicles. ...

Abstract: Laboratory tests are described that explore the validity of using bridge measurements to determine not only equivalent static wheel loads but also their dynamic variation with time. A 12.2‐m span composite girder was loaded ...

Abstract: This paper suggests a simple vehicle model that may be used to estimate impact in highway bridges. In this model each axle load consists of a constant load together with a sinusoidally varying dynamic component with a ...