Small scale modelling of brickwork arch bridges using a centrifuge

This paper contains the results of a recent study undertaken to assess the viability of modelling soil-brickwork structure interaction problems, at small scale, using a centrifuge. A series of tests is reported that simulates the behaviour of a previously tested 3 m span brickwork arch bridge, at 1/6 full scale, at an elevated gravity equivalent to 6 g. The results show that not only are the overall mechanisms of failure correctly modelled but that the influence of both brickwork and soil strength can be properly investigated. The results are compared to predictions made using the current UK masonry arch assessment methods with particular consideration given to the influence of soil and masonry strength.