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 a 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 yarn loops (4) are wrapping the system (400, 403), 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 when the wedge element (410, 413) is partially pulled out, forcing a distal end of each yarn loop (4) outward away from the continuous edge groove, which moves the distal end of a yarn loop of a first module away from a distal end of a yarn loop of an adjacent module, wherein each yarn loop is captive around a shell element and wedge, they cannot move away from each other, the yarn loops (4) 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).