A system for connecting textile-reinforced structural modules (72) along at least one connecting edge (76), wherein each structural module (72) has at least one continuous edge groove (74) having yarn loops (4) along at least the connecting edge (76), wherein the system (400, 403) comprises a wedge element (410, 413), has wedges (412) on at least one outer surface thereof and at least one shell element (420, 423) has surfaces corresponding to the wedges (412), wherein the wedge element (410, 413) and the at least one shell element (420, 423) are inserted into the at least two edge grooves (74) with the overlapping yarn loops (4) in a way that the wedges (412) and the corresponding surfaces face each other, wherein further the wedge element (410, 413) is provided for partial extension or insertion relative to the at least one shell element (420, 413), so that by means of wedge action between the wedges (412) and the corresponding surfaces the wedge element (410, 413) and the at least one shell element (420, 423) are spread apart from each other and the overlapping yarn loops (4) are pulled apart from each other, the system (400, 403) wrapping yarn loops are drawn towards each other at the same time, characterized in that the yarn loops (4) are part of the textile reinforcement of the structural modules (72), the wedge element (410, 413) and the at least one shell element (420, 423) follow the course thereof continuously over the entire length of the connecting edge (76).