Viewpoint: To BIM or not to be?

This month's letters scrutinise the President's views on site supervision, raise some interesting questions in the aftermath of the Grenfell Tower fire, discuss the benefits and drawbacks of BIM, as well as commenting on concrete design to the Eurocodes and British Standards, fracking and various other topics.

Alastair Hughes makes a case for revision of the Eurocodes to harmonise the load factors for permanent and variable actions, or dead and live loads.

This month, Hugh Morrison MIStructE poses a question on bending and deflection for a steel floor beam.