A complete laser scan of the interior and exterior of King’s College Chapel has been completed and registered into a single model. We are now progressing with discrete element modelling of portions of the chapel.
Dimitrakopoulos EG, DeJong MJ (2012). Revisiting the rocking block: Closed form solutions and similarity laws, Proceedings of the Royal Society A, 468(2144), 2294-2318 (doi:10.1098/rspa.2012.0026).
The paper presents closed form solutions and similarity laws for the rocking block subjected to impulse ground motion. Both overturning and maximum rocking spectra are considered.
Shake table test of two tile masonry vaults. The near vault is unreinforced while the far vault has a single layer of geogrid reinforcing. The large bricks on the extrados are not structural, but were necessary for appropriate mass scaling.
During high-frequency ground motion without large impulses, rocking collapse tends not to occur. Instead, hinging induces sliding within the joints over a long duration of loading.