Technical Guidance Note (Level 1, No. 10): Principles of lateral stability

Once the concept and scheme design has been determined, initial sizing of elements commences. This note shows how to size elements, prior to detailed design. This process allows the engineer to gain an appreciation of structural form.

This note is an introduction to the assessment of floor vibrations - a frequently overlooked aspect of the design process. Floor vibrations can lead to expensive remedial works, as occupants complain of discomfort due to excessive movement. Updated October 2016.

It is essential for structural engineers to be able to express their ideas clearly through their designs. This note describes two common techniques used to draw in three dimensions.