Connection system and method for prefabricated volumetric construction modules
The invention provides a prefabricated volumetric construction module having connection mechanism for securing to other similar modules. A prefabricated volumetric construction module includes a self-supporting structure and pairs of corner castings arranged at least at the corners of the structure. During building construction, the modules are assembled and secured together using connection rods and interlocking plates to provide vertical securement between vertically adjoining modules and horizontal securement between horizontally adjoining modules.
1. A unitary structure defining a plurality of internal occupiable spaces, the unitary structure comprising:
a plurality of adjacent modules, each of the plurality of adjacent modules having at least one occupiable space;
at least one binding member arranged to span vertically across and couple vertically adjacent modules; and
an interlocking plate arranged to span horizontally across and couple horizontally adjacent modules,
wherein each of the plurality of adjacent modules further comprises a plurality of structural panels, each of the plurality of structural panels are assembled with adjacent structural panels by a plurality of mechanical connectors,
wherein at least one edge of one module is aligned with a corresponding edge of the adjacent modules and peripheral connection edges of the structural panels are shaped to allow a single positional engagement, held in place by connections having dowelling or bolts,
wherein the binding member comprises a first rod arranged to be inserted through at least one edge of a lower-level module, and a second rod arranged to be inserted through at least one edge of an upper-level module, the first and second rods comprise an internally threaded end and an externally threaded end, the internally threaded end and the externally threaded end are arranged to be complementary with each other, wherein the externally threaded end of the second rod is arranged to be inserted into the internally threaded end of the first rod, and
wherein the interlocking plate has at least one opening and at least one guide projection arranged at least partially around the at least one opening and interposed between the upper-level module and the adjoining lower-level module, wherein an internally threaded socket head of the second rod is fitted within the at least one opening, and wherein an upper portion and a lower portion of the guide projection are fitted within a lower corner casting of the upper-level module and an upper corner casting of the lower-level module respectively so as to guide the placement of the adjacent modules and prevent lateral or horizontal movement of the adjacent modules.
2. The unitary structure according to claim 1 , wherein the plurality of structural panels comprises at least a roof panel and a floor panel.
3. The unitary structure according to claim 2 , wherein the floor panel of an upper-level module is positioned on the roof panel of a lower-level module.
4. The unitary structure according to claim 3 , wherein the binding member is arranged to couple adjacent modules on the roof panel of the module.
5. The unitary structure according to claim 1 , wherein the plurality of mechanical connectors comprises a bolt and ferrule system.
6. The unitary structure according to claim 1 , wherein at least some of the plurality of structural panels comprise stepped peripheral edges to receive flush edges.