Enhancements to the resisting moment of unreinforced masonry walls due to shifts in the neutral axis position

This issue's letters cover BS 8666, computer storage requirements, graduate training and much more.

Readers respond to a paper on the Tate Modern project, presented at a meeting of the Institution of Structural Engineers on 23 March 2000 and published in The Structural Engineer in Volume 78, no. 4, 15 February 2000.

This paper describes a study of tunnelling-induced settlement damage to masonry buildings, using a numerical model, in which interaction is included. 2-dimensional finite elements (FEs) are used with non-linear material models for the soil and for a masonry facade.