A frame includes a first frame assembly, where the first frame assembly includes an arm member having a first and second end, a leg member having a first and second end, a first fitting connecting the first end of the arm and leg members at an angle, and a flexible panel fastened to the arm and leg members. A method of building a frame includes assembling a first frame assembly by connecting a first end of an arm member having a first and second end with a first end of a leg member having a first and second end, at an angle using a first fitting, and fastening a first flexible panel to the arm and leg members.

What is presented is a unit cell comprising a cellular geometry that comprises cell walls and cell edges arranged into a combination of a cubic cell geometry and a tetrahedral cell geometry arranged to have a coincident central vertex. The cubic cell geometry comprises three orthogonal cell faces that intersect at its central vertex. The tetrahedral cell geometry comprises an arrangement of eight tetrahedral cells that share its central vertex such that each tetrahedral cell shares three coincident edges with three other tetrahedral cells in a cubically symmetric arrangement. The tetrahedral cell geometry is combined with the cubic cell geometry such that all vertices of the tetrahedral cell geometry are coincident with the vertices of the cubic cell geometry.

What is presented is a unit cell comprising a cellular geometry that comprises cell walls and cell edges arranged into a combination of a cubic cell geometry and a tetrahedral cell geometry arranged to have a coincident central vertex. The cubic cell geometry comprises three orthogonal cell faces that intersect at its central vertex. The tetrahedral cell geometry comprises an arrangement of eight tetrahedral cells that share its central vertex such that each tetrahedral cell shares three coincident edges with three other tetrahedral cells in a cubically symmetric arrangement. The tetrahedral cell geometry is combined with the cubic cell geometry such that all vertices of the tetrahedral cell geometry are coincident with the vertices of the cubic cell geometry.

A three-dimensional load bearing structure may include a plurality of load bearing members, or force members, that are joined at a plurality of nodes to define a load bearing structure. The structure may include a plurality of longitudinal members extending in parallel along a longitudinal length of the truss structure, and a plurality of transverse members, joined to the plurality of longitudinal members at nodes, and extending between the plurality of longitudinal members. The plurality of transverse members may provide buckling support to the plurality of longitudinal members, so that an axial load, or compressive load, or buckling load, may be effectively carried by the truss structure.

A three-dimensional load bearing structure may include a plurality of load bearing members, or force members, that are joined at a plurality of nodes to define a load bearing structure. The structure may include a plurality of longitudinal members extending in parallel along a longitudinal length of the truss structure, and a plurality of transverse members, joined to the plurality of longitudinal members at nodes, and extending between the plurality of longitudinal members. The plurality of transverse members may provide buckling support to the plurality of longitudinal members, so that an axial load, or compressive load, or buckling load, may be effectively carried by the truss structure.

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. Each secondary beam (11) includes, on two opposite faces, at least one projection leaving an opening to receive a folded edge of a flat facade element (3).

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. Each secondary beam (11) includes, on two opposite faces, at least one projection leaving an opening to receive a folded edge of a flat facade element (3).

A temporary shelter that is easy to assemble and disassemble and suitable for use in providing, for example, medical and healthcare services to patients having infectious diseases, as temporary drop-off testing facilities, and/or as emergency housing for the homeless. In one embodiment, the shelters are comprised of one or more modules, which, in turn, are comprised of a PVC pipe structure, a skin covering the structure, zipper doors, and a floor. The modules may be attached to pre-existing structures, attached to other modules to form a larger shelter, or left as a standalone shelter.

A construction system for a module of a dwelling the main elements of which are made of plastic material includes a set of hollow profiled beams (1, 1′) of elongate rectilinear shape of type 1 and of type 2. The beams (1, 1′) include at each end (5, 5′) a transverse passage opening (6, 6′). The transverse passage opening (6) of a beam (1) of type 1 comes to be nested with the transverse passage opening (6′) of a beam (1′) of type 2 when the two beams (1, 1′) are assembled end to end at a right angle leaving a passage opening (6, 6′) between the two ends (5, 5′) of the beams (1, 1′). Two beams (1) of type 1 can be assembled with two beams (1′) of type 2 to form a rectangular frame. The system further includes a set of corner assembly elements (2, 2′), each assembly element (2, 2′) including a body intended to pass through the transverse passage opening (6, 6′) of the beams (1, 1′) of type 1 and 2. The system also includes a set of plates (3) that can be assembled between two beams (1) of type 1 when assembled or two beams (1′) of type 2 when assembled to form a rectangular frame, and a set of posts (11) of hollow rectangular section the hollow ends of which come to be nested over a corner assembly element (2, 2′) of a rectangular frame formed of beams (1, 1′) of type 1 and of type 2 so as to form a three-dimensional framework. The posts (11) include longitudinal rails or grooves (8) on two adjacent surfaces to receive other plates (3′) between the posts (11) during assembly. Each hollow profile beam (1, 1′) including along an upper surface spaced rails or grooves (8) intended to receive said other plates (3′).

A construction system for a module of a dwelling the main elements of which are made of plastic material includes a set of hollow profiled beams (1, 1′) of elongate rectilinear shape of type 1 and of type 2. The beams (1, 1′) include at each end (5, 5′) a transverse passage opening (6, 6′). The transverse passage opening (6) of a beam (1) of type 1 comes to be nested with the transverse passage opening (6′) of a beam (1′) of type 2 when the two beams (1, 1′) are assembled end to end at a right angle leaving a passage opening (6, 6′) between the two ends (5, 5′) of the beams (1, 1′). Two beams (1) of type 1 can be assembled with two beams (1′) of type 2 to form a rectangular frame. The system further includes a set of corner assembly elements (2, 2′), each assembly element (2, 2′) including a body intended to pass through the transverse passage opening (6, 6′) of the beams (1, 1′) of type 1 and 2. The system also includes a set of plates (3) that can be assembled between two beams (1) of type 1 when assembled or two beams (1′) of type 2 when assembled to form a rectangular frame, and a set of posts (11) of hollow rectangular section the hollow ends of which come to be nested over a corner assembly element (2, 2′) of a rectangular frame formed of beams (1, 1′) of type 1 and of type 2 so as to form a three-dimensional framework. The posts (11) include longitudinal rails or grooves (8) on two adjacent surfaces to receive other plates (3′) between the posts (11) during assembly. Each hollow profile beam (1, 1′) including along an upper surface spaced rails or grooves (8) intended to receive said other plates (3′).