What type of structural system consists of trusses interconnected at their joints in two dimensions?

The concept of a structural system consisting of trusses interconnected at their joints in two dimensions is best captured by the definition of a space frame. A space frame is a three-dimensional structure made up of interconnected elements that distribute load across the framework. However, when focused specifically on two dimensions, the term highlights the framework's behaviour and design at a planar level.

Space frames utilize geometry and the method of triangulation, making them highly efficient in terms of material usage while being capable of spanning large areas without significant supports. The interconnected trusses at their joints distribute loads evenly and contribute to overall stability and strength.

In this context, a space frame can represent configurations of trusses in two dimensions while maintaining strength and efficiency. This structural approach is commonly employed in various architectural applications where large, open interior spaces are desired, highlighting the need for innovative and robust structural systems in architecture.