Abstract
The fluid force and the pressure acting on the model bridge deck with the concave cross-section are measured in a two-dimensional wave flume. The magnitude of the maximum pressure acting on the underside of the model bridge deck with the concave cross-section depends on the occurrence of the wave breaking in front of the model bridge. Bagnold-Mitsuyasu model is applied to estimating the maximum pressure in the case where the air under the model bridge deck is compressed. The magnitude of the maximum pressure acting on the seaward side of the model bridge deck with the concave cross-section is similar to that of the model bridge deck with the rectangular cross-section.
