The Structural Engineer > Archive > Volume 78 (2000) > Issues > Issue 5 > A Study of Scale Effects in Masonry Arch Bridges: is Testing of Large-Scale Structures Still Necessa
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A Study of Scale Effects in Masonry Arch Bridges: is Testing of Large-Scale Structures Still Necessary?

As part of a recent research project, one of the aims of which was to study the effects of repeated loading in masonry arch bridges, a series of eight model structures were tested to destruction. Prior to the testing, an analytical study of the scale effects involved in the modelling of masonry arch bridges was carried out. The results of this study showed that it is possible to accurately predict the capacity of large-scale structures using small-scale model tests. However, accurate modelling of deflection behaviour was not possible. Taking into account the expense of conducting full-size tests of structures such as masonry arches, the question arises as to whether sufficient information can be obtained from the results of small-scale testing. V. Hogg and B.S. Choo