Modular building structure

1. A connector assembly, comprising:

a first connector, wherein the first connector comprises

a frame and a complementary column affixing pressure plate for coupling to the frame, the frame and the complementary column affixing pressure plate together forming a hollow body upon coupling, the hollow body having a top end having an opening, a bottom end and side faces;

the frame and complementary column affixing pressure plate having complementary apertures for receiving fasteners for affixing a column receivable within the hollow body upon insertion into the opening from the top end; and

a joist plate coupled to the frame and a joist affixing pressure plate adapted for coupling to the joist plate, the joist plate and the joist affixing pressure plate having complementary apertures for receiving additional fasteners for affixing a joist;

a second module connector; and

a gusset plate sandwiched between the first connector and the second module connector.

2. The connector according to claim 1 , wherein the joist plate and the joist affixing pressure plate have a generally U-shaped cross-section.

3. The connector according to claim 1 , wherein the frame and a pair of joist plates together have a generally W-shaped cross-section.

4. The connector assembly according to claim 1 , wherein the joist affixing pressure plate has a toothed face.

5. The connector according to claim 1 , further comprising a reinforcing rib engaging the side faces of the frame and positioned at a top end of the joist plate.

6. The connector according to claim 1 , further comprising a bottom plate and a compression transmitting angle or tube, the compression transmitting angle or tube positioned between the rib and the bottom plate.

7. The connector according to claim 6 , wherein the compression transmitting angle or tube is an L-shaped angle that engages the frame at one end and the joist plate at another end.

8. The connector according to claim 1 , further comprising arms coupled to the frame with the joist plate extending from the arms.

9. The connector assembly of claim 1 , wherein the gusset plate has holes for receiving coupling means or fastening means to couple the first connector and the second module connector.

10. The connector assembly of claim 1 , further comprising a locating pin positioned on a first face of the gusset plate for engaging a locating pin receiving aperture on the first connector for positioning the first connector on the gusset plate.

11. A liftable frame assembly, comprising:

at least a pair of beams having an upper end and a lower end;

struts coupled to the at least pair of beams forming a liftable frame structure;

a plurality of first hoist blocks releasably affixed to the upper ends of the beams and slidably moveable from a first position to a second position on the beams when released;

load bearing cables coupled to the plurality of first hoist blocks;

a plurality of second hoist blocks releasably affixed to the lower end of the beams and slidably moveable from the first position to the second position of the beams when released; and

a connector assembly as defined in claim 1 , coupled to the plurality of second hoist blocks on one end of the lifting connector assembly and to a modular frame unit on another end of the lifting connector assembly.

12. A system of modular frame units for forming a modular building, comprising:

a first module frame unit having a first end coupled to a first connector;

a second module frame unit having a first end coupled to a second connector; and

the first connector and the second connector being coupled and sandwiching a gusset plate,

wherein the first connector is as defined in claim 1 .

13. A system for vertically and horizontally joining modular frame units for forming a modular building, comprising the system as defined in claims 11 or 12 .

14. A system for coupling adjacent modular frame units for forming a modular building, comprising:

a first module frame unit having a first module frame unit first end coupled to a first module frame unit connector;

a second module frame unit positioned adjacent to the first module frame unit and having a second module frame unit first end having a second module frame unit connector; and

a floor section having pedestals coupled to a slab, the pedestals having an opening adapted for coupling the pedestals to the first and second module frame unit connectors; and

wherein the first module frame unit connector is the connector as defined in claim 1 , and having a bore in the hollow body adapted for receiving and coupling the pedestals.

15. A method for coupling modular frame units for forming a modular building, comprising:

coupling a first connector to a first end of first module frame unit;

coupling a second connector to a first end of second module frame unit; and

sandwiching a gusset plate and coupling the first connector and the second connector to form modular frame units, wherein the first connector is defined in claim 1 .

16. A module frame unit comprising a connector assembly as defined in claim 1 .

17. A building comprising the module frame unit of claim 16 .

18. A building comprising the connector as defined in claim 1 .

19. A building comprising the connector assembly as defined in claim 1 .