Brakes for buildings: the new frontier of friction dampers

This article examines the various methods for the design and construction of concrete arches, frames, tunnels and jacked boxes, which cover the whole range of bridges from the smallest culverts to the largest concrete spans in the world.

This article discusses connection behaviour, design methodology and the classifications given in BS EN 1993-1-8. Connection design for structural integrity and the use of preloaded assemblies are introduced. Challenges connected with multi-member or unorthodox connections are also discussed.

Letters this month include discussion on: Late payment of fees, the CM exam pass mark, the recruitment market and the Institution's Structural Awards 2014 event.