Joining a rail member to a composite trailer structure

1. A cargo vehicle comprising:

a composite floor assembly configured to support cargo, the composite floor assembly comprising a front end, a rear end, a left side, a right side, a longitudinal axis extending between the left and right sides from the front end to the rear end, and a plurality of composite support beams extending perpendicular to the longitudinal axis, the plurality of composite support beams being spaced apart to define a plurality of recessed areas between adjacent composite support beams;

a rail extending along the left side or the right side of the composite floor assembly;

a first mounting plate coupled to a front surface of one of the composite support beams, the first mounting plate comprising at least one protrusion positioned adjacent at least one edge of an inner surface of the mounting plate, the at least one protrusion configured to abut the front surface of the corresponding composite support beam to define a gap therebetween, the first mounting plate further defining a port positioned laterally inward of the protrusion, the port configured to receive an adhesive in the gap between the inner surface of the first mounting plate and the front surface of the corresponding composite support beam to permanently couple the first mounting plate to the front surface of the corresponding composite support beam;

a second mounting plate permanently coupled to a rear surface of one of the composite support beams;

a third mounting plate positioned against the rail and extending parallel to the longitudinal axis and perpendicular to the first and second mounting plates; and

at least one mechanical fastener coupling the third mounting plate to the rail, at least a portion of the at least one mechanical fastener located in one of the recessed areas of the composite floor assembly.

2. The cargo vehicle of claim 1 , wherein:

the first mounting plate is coupled to the front surface of a rearward composite support beam;

the second mounting plate is coupled to the rear surface of a forward composite support beam; and

the third mounting plate and the at least one mechanical fastener are located between the first and second mounting plates and in the recessed area between the rearward and forward composite support beams.

3. The cargo vehicle of claim 2 , wherein the first, second, and third mounting plates form a single mounting member.

4. The cargo vehicle of claim 1 , wherein the first and second mounting plates are coupled to front and rear surfaces of the same composite support beam.

5. The cargo vehicle of claim 4 , wherein:

the first mounting plate and the third mounting plate form a first mounting member located forward of the composite support beam; and

the second mounting plate and a fourth mounting plate form a second mounting member located rearward of the composite support beam.

6. The cargo vehicle of claim 1 , wherein:

the first mounting plate is adhered to the front surface of the corresponding composite support beam; and

the second mounting plate is adhered to the rear surface of the corresponding composite support beam.

7. The cargo vehicle of claim 6 , wherein:

an inner surface of the first mounting plate includes a plurality of protrusions configured to abut the front surface of the corresponding composite support beam; and

an inner surface of the second mounting plate includes a plurality of protrusions configured to abut the rear surface of the corresponding composite support beam, the protrusions defining a second gap between the inner surface of the second mounting plate and the rear surface of the corresponding composite support beam.

8. The cargo vehicle of claim 7 , wherein:

the second mounting plate includes a second port configured to receive an adhesive in the second gap between the inner surface of the second mounting plate and the rear surface of the corresponding composite support beam.

9. The cargo vehicle of claim 1 , wherein each composite support beam includes a foam core surrounded by a fiberglass and polymeric skin.

10. The cargo vehicle of claim 1 , wherein the composite floor assembly is a flat-bed floor assembly.

11. The cargo vehicle of claim 10 , wherein the rail includes at least one channel configured to receive a retaining member for securing cargo to the flat-bed floor assembly.

12. The cargo vehicle of claim 11 , wherein the at least one channel is a winch track.

13. The cargo vehicle of claim 10 , wherein the rail is configured to receive a nail strip for securing cargo to the flat-bed floor assembly.

14. The cargo vehicle of claim 1 , wherein:

the front end of the composite floor assembly is coupled to a front wall;

the left side of the composite floor assembly is coupled to a left side wall; and

the right side of the composite floor assembly is coupled to a right side wall.

15. The cargo vehicle of claim 14 , wherein the rail couples one of the left and right sides of the composite floor assembly to the corresponding left or right side wall.

16. A cargo vehicle comprising:

a composite floor assembly configured to support cargo, the composite floor assembly comprising a front end, a rear end, a left side, a right side, a longitudinal axis extending between the left and right sides from the front end to the rear end, and composite support beam extending perpendicular to the longitudinal axis, the composite support beam having a front surface that faces a front recessed area and a rear surface that faces a rear recessed area;

a rail extending along the left side or the right side of the composite floor assembly;

a first mounting plate coupled to the front surface of the composite support beam, the first mounting plate comprising at least one protrusion positioned adjacent at least one edge of an inner surface of the first mounting plate, the at least one protrusion configured to abut the front surface of the corresponding composite support beam to define a gap therebetween, the first mounting plate further defining a port positioned laterally inward of the protrusion, the port configured to receive an adhesive in the gap between the inner surface of the first mounting plate and the front surface of the corresponding composite support beam to permanently couple the first mounting plate to the front surface of the corresponding composite support beam;

a second mounting plate coupled to the rear surface of the composite support beam, the second mounting plate comprising at least one protrusion positioned adjacent at least one edge of a second inner surface of the second mounting plate, the at least one protrusion configured to abut the rear surface of the corresponding composite support beam to define a second gap therebetween, the second mounting plate further defining a second port positioned laterally inward of the at least one protrusion, the second port configured to receive an adhesive in the second gap between the second inner surface of the second mounting plate and the rear surface of the corresponding composite support beam to permanently couple the second mounting plate to the rear surface of the corresponding composite support beam;

a third mounting plate positioned against the rail and extending forwardly from the first mounting plate through the front recessed area;

a fourth mounting plate positioned against the rail and extending rearwardly from the second mounting plate through the rear recessed area;

at least one front mechanical fastener coupling the third mounting plate to the rail; and

at least one rear mechanical fastener coupling the fourth mounting plate to the rail.

17. The cargo vehicle of claim 16 , wherein:

the first mounting plate and the third mounting plate form a first mounting member located forward of the composite support beam; and

the second mounting plate and a fourth mounting plate form a second mounting member located rearward of the composite support beam.

18. The cargo vehicle of claim 16 , wherein the third mounting plate and the fourth mounting plate are each removably coupled to the rail.

19. The cargo vehicle of claim 8 , wherein the third mounting plate includes a port to receive a mechanical fastener.

20. The cargo vehicle of claim 1 , wherein the third mounting plate is removably coupled to the rail.

21. The cargo vehicle of claim 1 , wherein the plurality of composite support beams support a platform or panel so that each of the plurality of recessed areas comprise three walls.

22. The cargo vehicle of claim 21 , wherein each of the first mounting plate, the second mounting plate, and the third mounting plate are positioned completely within a corresponding recessed area.