Connection assembly

摘要

A connection assembly of first and second elements. The first element has a receiving opening through which the second element is passed and penetrates the first element. The first element is connected to the second element at one or more positions in the region of their intersection. At least one of the first and second elements have ridges arranged to lie adjacent the opposing elements. A plurality of the elongate elements can be interconnected in a plurality of connection assemblies to form a grid structure.