Post tension and cantilever connection assembly for a modular construction
A vertical structural connection assembly allowing a modular construction to be made with a plurality of modular units without any required welding on-site. A pin on top of each column of the modular units allows construction crews to easily stack the units one on top of one another. A cantilever plate is included within the connection assembly which is configured to couple to a cantilever beam, thereby providing a means for a corridor, balcony, overhanging roof, or other construction element to be added to the modular construction. A tie connection attaches on the face of the modular units via a welded bolt or outrigger, and/or placed on adjacent connection assemblies between stacked modular units. The tie connection maintains the horizontal connection while allowing adjacent modular unit to move up and down independently, for example, during a seismic event, while still maintaining a horizontal distance there between.
1 . A modular construction comprising:
at least two modular units;
a connection assembly coupled to each of the at least two modular units; and
a tie connection coupled to each connection assembly coupled to each of at least two modular units,
where the at least two modular units are disposed horizontally adjacent to each other,
where the connection assembly coupled each of the at least two modular units comprises:
a side plate coupled to one of the at least two modular units;
a cantilever plate disposed on top of one of the at least two modular units;
a first plurality of fasteners configured to couple the cantilever plate to a cantilever beam;
an end plate coupled to the cantilever beam; and
a second plurality of fasteners configured to couple the end plate coupled to the cantilever beam to the side plate coupled to each of the at least two modular units, and
where the tie connection coupled to each connection assembly is coupled to the at least two of the second plurality of fasteners.
2 . The connection assembly of claim 1 where the side plate is coupled to a vertical surface of a column of a first modular unit of the at least two modular units, and where the cantilever plate is disposed over a top surface of the column of the first modular unit.
3 . The connection assembly of claim 1 where the end plate coupled to the cantilever beam is removably coupled to the side plate, and where the cantilever plate is removably coupled to the cantilever beam.
4 . The connection assembly of claim 1 where the cantilever plate disposed on top of one of the at least two modular units is disposed across a corresponding cross sectional area of a first column within a first modular unit of the at least two modular units.
5 . The connection assembly of claim 1 where the cantilever plate comprises:
at least one guide pin; and
a cable pin,
where the cable pin comprises a shaft defined through its vertical height.
6 . The modular construction of claim 1 where the tie connection is configured to rotate about the at least two of the second plurality of fasteners.
7 . The modular construction of claim 1 where the cantilever plate comprises:
at least one guide pin; and
a cable pin,
wherein the cable pin comprises a shaft defined through its vertical height.
8 . A method for constructing a modular construction, the method comprising:
disposing a first modular unit horizontally adjacent to a second modular unit, where the first and second modular units each comprise a connection assembly, where each connection assembly comprises:
a side plate coupled to one of the at least two modular units;
a cantilever plate disposed on top of one of the at least two modular units;
a first plurality of fasteners configured to couple the cantilever plate to a cantilever beam;
an end plate coupled to the cantilever beam; and
a second plurality of fasteners configured to couple the end plate coupled to the cantilever beam to the side plate coupled to each of the at least two modular units;
disposing a cantilever plate on a top surface of the first and second modular units;
stacking a third modular unit on top of the cantilever plate disposed on either the first or second modular unit; and
coupling a tie connector to each connection assembly of the first and second modular units,
where the tie connector coupled to each connection assembly is coupled to at least two of the second plurality of fasteners.
9 . The method of claim 8 further comprising disposing a compressible pad between the first and second modular units.
10 . The method of claim 8 further comprising:
coupling a cantilever beam to the cantilever plate disposed on either the first or second modular unit; and
coupling the cantilever beam to a side plate coupled to either the first or second modular unit.
11 . The method of claim 8 where stacking the third modular unit on top of the cantilever plate disposed on either the first or second modular unit comprises inserting at least one guide pin disposed on the cantilever plate into the third modular unit.
12 . The method of claim 8 where stacking the third modular unit on top of the cantilever plate disposed on either the first or second modular unit comprises:
inserting a cable pin disposed on the cantilever plate into the third modular unit; and
disposing a conduit within the third modular unit through a shaft defined through a vertical height of the cable pin and into either the first or second modular unit.
13 . The method of claim 8 further comprising compensating for relative vertical movement between the first and second modular units by rotating each lateral end of the tie connector about the at least one fastener disposed on the first modular unit and the at least one fastener disposed on the second modular unit, respectively.