Abstract: The invention proposes a system for constructing a module of a building, including core construction elements (1) that are surrounded by the surrounding construction elements (2A, 2B). The core construction elements (1) each include, in section, a cross including two main arms (6) of equal length which intersect at mid-length at right angle. Each core construction element (1) has a plane of symmetry about the axes of the arms. The main arms (6) of the cross terminate, at the ends thereof, with transverse portions (7). Each surrounding construction element (2A, 2B) is composed of four partial surrounding parts (2A, 2B, 2A?, 2B?) of a generally triangular shape which are assembled around a core element (1). Construction elements forming junction parts (4A, 4B) allow assembling panels (4A, 4B) to form a module of a building in the form of a rectangular parallelepiped volume comprising four corners.

Abstract: The present invention concerns a construction system for a building module, whose main elements are made of plastic material, providing a robust construction in an easy and quick manner. The system includes a set of main beams (1) adapted to be assembled end-to-end to form an open structure in the shape of a 3-dimensional rectangular frame. The system further includes secondary beams (11), adapted to be assembled between parallel and opposite main beams, and flat facade elements (3) insertable against each other between two adjacent parallel beams. Each facade element (3) includes a rectangular flat plate provided with two folded opposite edges (3A) intended to be hooked with adjacent parallel beams. Each main beam has a rectangular cross-section including, on the four sides thereof, a projection (21) parallel to the side and spaced therefrom leaving an opening to receive a folded edge of a flat facade element.