Case Study of the Failure of a Cross Vault: Church of Holyrood Abbey

Abstract

The church of Holyrood Abbey, in Edinburgh, collapsed in 1768 after an inappropriate intervention in the nave vaults. This resulted in excessive lateral thrusts, which could not be contained by the existing buttressing systems, causing progressive instability of the lateral walls. This effect was studied on a lateral cross vault of the church. A replica in 1:4 scale was built and tested initially under service loads and subsequently until collapse due to movement of the two front abutments. Analysis of the model was carried out with the finite-element program