New space truss system—from concept to implementation

In 1993, and following years of research on the behaviour and economics of space structures, researchers at Dundee University developed a new space truss system called Catrus. The main features of Catrus are its continuous chord members, simple jointing system and ability to work compositely with concrete slabs and timber boards. An extensive research programme over 3 years studied the behaviour of the new system and the effect of the simplifications adopted in forming the joints and connecting the members. Overall, the results obtained indicated a reliable and robust structural behaviour. This paper reports on Catrus, from its development stages to its industrial exploitation.