TITLE:"system and method for the realization of the aggregation and rapid three-dimensional union of prefabricated modular elements in the shape of a cube or parallelepiped with a steel frame".

This invention has as its object a method and a system to achieve the rapid three-dimensional union of modules in the shape of a cube or parallelepiped consisting of frames with linear structural elements inserted on each side of the module, the union occurs by means of a circle consisting of flanges that symmetrically join each one or more beams in the same direction with one more pillars in a perpendicular direction. This system and method allow modular aggregations to be made quickly and economically for both two-dimensional and three- dimensional aggregations, without drilling on the modules. The current state of the art realizes the union of the described modules by welding or bolted unions with holes on the structural elements, or with mixed solutions between them, the rapid union exists only for individual elements mounted by hand to grow the structure and usually round section and not for whole modules already assembled and composed of several elements. Nowadays, in the building sector, there is an increasing demand for such modular realizations to be assembled in a short time both to solve housing emergencies and for normal building realizations, and to support them. With this invention you get the advantage of making aggregations of modules in a short time, without drilling on the structural parts and with cost savings for the realization of aggregations of modules of this type.

The characteristics and advantages of the present invention will be evident from the following description of its form of practical realization, illustrated in a non-exhaustive way in the united drawings, in which:

In accordance with the present invention, these and other purposes are achieved by a system for the realization of the three-dimensional union of the knots of prefabricated modular elements in the shape of a cube or parallelepiped fig. 1 with steel frame characterized by the fact that a set of individual modules fig. 2 is held together and solidified by the use of flanges made of shaped sheets joined together by bolting, the flanges are placed externally to the structural elements that form the modules so as to wrap both the beams and pillars, forming a union without holes on the structural elements of the modules, the knot consists of the union of eight modules fig. 2 particular (1 ) and fig. 4, is composed of flanges in shaped sheet metal of particular shape so that this shape follows the shape of the structural elements of the modules to be wrapped with the flanges as shown in fig. 3 with flanges n. (1 ), (2), (3), (4), (5), (6), (7), (16), the flanges to solidify the node of eight modules are of two types, equal for each type and mounted symmetrically and/or mirrored on the node, said flanges join without any holes the edges of the eight modules as shown in fig.3 where (12) and (13) are indicated the pillars of the modules and respectively with (9), (8), (13) and (14) are indicated the beams of the same modules, as in fig. 3 flange (2) is joined respectively by bolting with flange (1 ) opposite to beams (8) and with flange (3) opposite to pillars (12), flange (4) is coupled to flange (3) to join beams (14), in the same way beams (9) and pillars (13) are joined respectively by coupling flange (7) with flange (16) and flange (6) the latter joined with flange (5), the flanges are joined together by bolting (1 1 ) to join the node composed of eight modules in fig. 4;

the vertical wall knots are each made up of four modules as shown in fig. 2 and details (2) and fig. 6, in these knots the four modules that form each single wall knot are joined as shown in fig. 5 in which flange (6) is joined to flange (7) to join the beams (2), flange (6) is then joined to flange (10) to join the pillars (1 ), flange (5) is joined to flange (4) to join the beams (3) while flange (14) is joined to flange (5) to join the pillars (1 1 ) and to flange (9) to join the beams (12), all flanges are joined by bolting (13) and are shaped to follow the shape of the structural parts of the modules to be joined; the knots of the vertical edges of the set of modules mounted fig. 2 details (3) and fig. 8, are also joined by bolted flanges, the number two modules constituting each vertical node of the edge, are joined as shown in fig. 7 where flange (5) is joined to flange (7) to join the beams (2), flange (5) is then joined to flange (10) to join the beams (2) to join pillar (9), flange (6) is joined to flange (8) to join the beams (3), flange (6) is joined to flange (4) to join the beams (3) to join pillar (1 ), the flanges are joined by bolting (1 1 ); the horizontal corner knots fig. 2 details (4) and fig. 10, are individually joined as shown in fig. 9 in which flange (6) is joined to flange (10) and flange (7) in this way the pillars (14) are joined to the beams (12), flange (6) is also joined to flange (9) and flange (8) to join the beams (1 1 ) and (13) to the rest of the node, all the flanges making up the single horizontal corner node are joined by bolting (15); the vertex knots fig. 2. details (5) and fig. 1 1 , are individually joined as shown in fig. 12 by the union of flange (6) with flange (4) and (5) to join the beams (2) and (3), flange (6) is joined to flange (7) to join pillar (1 ), all flanges are joined by bolting (8); the horizontal wall knots fig. 2 detail (6) and fig. 13, are joined individually as shown in fig. 14 where flange (2) is joined to flange (3) and flange (6) to join the beams (9) and columns (1 ), flange (6) is joined to flange (7) to join the beams (1 1 ) and flanges (4) and (5) are joined respectively to flanges (6) and (2) to join the beams (10) and (8), all flanges are joined by bolting (12).

These purposes are also achieved by a method for the realization of the three-dimensional union of the knots of prefabricated modular elements in the shape of a cube or parallelepiped with a steel frame characterized by the fact of including a first phase of positioning of at least four modules side by side and adjacent on the sides to form multiple sides in plan of the sides of the single module fig. 1 ; a second phase of positioning of at least four other modules above the first modules previously positioned and recalculating both the perimeter and the position of each module placed above the one below; a third phase in which the central barycentric node is joined by solidifying the eight modules that make up the node with the use of flanges of such a particular shape as to wrap beams and pillars without drilling them, these flanges are joined by bolting, in this phase as in Fig. 3 flange (2) is joined with flange (3) and with flange (1 ) to obtain the solidarization between them of the beams (8) and at the same time with the pillars (12), then flange (4) is connected to flange (3) to obtain the solidarization of the beams (14) with the parts of the modules previously solidarized, then flange (7) is joined with flange (6) to join the columns (13), finally flange (8) is joined to flange (7) and flange (5) to flange (6), obtaining the complete solidification of the central barycentric node with respect to the set of modules; then there is a fourth phase in which all the nodes placed on the walls are solidarized as shown in the fig. 2 details (2) and fig. 6, in this phase as in fig. 5 is joined, for each node of the wall, flange (6) with flange (10) and with flange (7) to obtain the solidarisation of pillars (1 ) with beams (2), then flange (14) with flange (5) and flange (12) with flange (9) are joined, then flange (4) with flange (5) is joined to obtain the complete solidarisation of the single wall node, all flanges are joined by bolting (13), the operation is then repeated for all wall nodes; in the following fifth phase the nodes on the horizontal edges are solidarised as shown in fig . 2, details (4) and fig. 10 always with the use of flanges joined by bolting (15), each single corner knot is solidified as shown in Fig. 9 where plate (6) is joined with plates (7), (8), (9) and (10) to obtain complete solidarisation of the beams (1 1 ), (12) and (13) and of the pillars (14) of the single knot of horizontal edge, the operation is then repeated for all the single knots of horizontal edge; in the following sixth phase the knots placed at the edges of the vertical sides of the union of the modules are solidarised as shown in fig. 2. details (3) and fig. 8, as shown in fig. 7 on the single vertical edge node flange (5) is joined with flange (10) and flange (7), then flange (6) is joined with flange (4) and flange (8), thus obtaining the solidarization of the single horizontal edge node, this operation is repeated for all vertical edge nodes, all flanges are joined by bolting (1 1 ); in the seventh phase the nodes placed at the four vertices are solidarized as indicated in fig. 2 details (5) and fig. 1 1 , as in fig. 12 in this phase every single vertex node is solidarized by joining the flange (6) to the flanges )5), (4) and (7), in this way the single vertex node is completely solidarized, the operation is repeated for every single vertex node, the flanges are joined by bolting (8); with the eighth phase the nodes placed on the horizontal wall are solidarized fig. 2 particular (6) and fig. 13, each single vertical wall node is joined as shown in fig. 14 plate (6) is joined with plate (2) solidifying the pillars (1 ), plate (6) and plate (2) are joined with plates (4) and (5) solidifying the beams (8) and (10), plate (2) is joined with plate (3) and plate (6) is joined with plate (7) solidifying the remaining parts of the node, all the flanges are joined by bolting (12).

The characteristics and advantages of the present invention will be evident from the following description of its form of practical realization, illustrated to not limitative title in the united drawings, in which:

Figure 1 shows schematically a module according to a first form of realization in which the sections of the elements are square and rectangular.

Fig. 2 shows a schematic aggregation of the modules of the type of fig. 1 in which the numbers from (1 ) to (6) indicate the various nodes. The following figures from (3) to (1 1 ) show in a schematic way one of the forms of realization, in these figures are individually illustrated the various types of nodes components of the structure of fig. 2 indicated with the numbers (1 ), (2), (3), (4), (5), (6), in figg. 4, 6, 8, 10 and 12 are represented the single nodes complete with mounted brackets, while in figg. 3, 5, 7, 9 and 1 1 are represented the single types of knots with exploded drawings in which the relative brackets are represented before the assembly by bolting with an indication of where they must be placed on beams and pillar of the aggregation of modules as can be seen from figures 3, 5, 7, 9 and 1 1 , the assembly is simplified and therefore quick, where once the brackets are tightened together you get the perfect solidification of the knots and the correct positioning of beams and pillars.