Coil railcar with floating floor sheet

1. A transverse trough coil car body including a plurality of transverse troughs along the car body, comprising:

a center sill extending substantially the longitudinal length of the car body;

a pair of side walls extending the longitudinal length of the car body on opposed sides of the car, each side wall including a side sill, top chord and side plate extending between the top chord and the side sill; and

a plurality of trough forming assemblies, with each trough forming assembly including at least one floating floor sheet configured to allow for thermal expansion of the floor sheet in at least one of a longitudinal direction and a direction transverse to the longitudinal direction.

2. The transverse trough coil car body according to claim 1 wherein in at least a plurality of the trough forming assemblies a plurality of floor plate supporting gussets are positioned substantially parallel to each other and with a longitudinal axis of the car body.

3. The transverse trough coil car body according to claim 1 wherein in each trough forming assembly includes at least one base member and one ridge member extending across the car body.

4. The transverse trough coil car body according to claim 3 wherein in each floating floor sheet includes a pair of clips at opposed ends of the sheet for coupling the floor sheet to the trough forming assembly and allowing for thermal expansion.

5. The transverse trough coil car body according to claim 4 wherein each trough forming assembly is bolted to each side wall.

6. The transverse trough coil car body according to claim 1 wherein a plurality of trough forming assemblies include two floating floor plates.

7. The transverse trough coil car body according to claim 1 further including at least one trough floor pan extending between adjacent trough forming assemblies.

8. A transverse trough coil car body including a plurality of transverse troughs along the car body, comprising:

a pair of side walls extending the longitudinal length of the car body on opposed sides of the car, each side wall including a side sill, top chord and side plate extending between the top chord and the side sill; and

a plurality of trough forming assemblies, with each trough forming assembly including at least one floating floor sheet which is coupled to the trough forming assembly configured to allow thermal expansion of the floor sheet in a first direction along a longitudinal axis of the car body and in a second direction transverse to the longitudinal axis of the car body.

9. The transverse trough coil car body according to claim 8 , wherein each floating floor sheet extends from a base member of the trough forming assembly to a ridge member of the trough forming assembly.

10. The transverse trough coil car body according to claim 9 , wherein each trough forming assembly includes a plurality of spaced frame supports extending between at least one base member thereof and the ridge member thereof.

11. The transverse trough coil car body according to claim 10 , wherein each trough forming assembly includes a plurality of spaced gussets with each gusset positioned at a location of one of the frame supports, and wherein the gussets extend generally along the longitudinal axis of the car body.

12. The transverse trough coil car body according to claim 11 , wherein each floating floor sheet includes a series of stops coupled to the sheet and wherein each floor sheet is supported on the base member via the series of stops which allow for thermal expansion of the floor sheet.

13. The transverse trough coil car body according to claim 12 , wherein expansion room for each floating floor sheet is provided under the ridge member, and wherein the ridge member overlaps the floating floor sheet and allows for expansion of the floating floor sheet in the first direction along a longitudinal axis of the car body.

14. The transverse trough coil car body according to claim 13 , wherein each floating floor sheet includes clips configured to engage a plurality of frame members which allow for thermal expansion of the floor sheet.

15. The transverse trough coil car body according to claim 14 , wherein each floating floor sheet engage with the frame members in a manner configured to support and retain the floating floor sheets and allow expansion in the second direction transverse to the longitudinal axis of the car body.

16. The transverse trough coil car body according to claim 15 , wherein a plurality of the trough forming assemblies include a triangular frame in which the apexes of which are generally formed by two of the base members and the ridge member.

17. The transverse trough coil car body according to claim 16 , further including trough floor pans extending between adjacent trough forming assemblies.

18. The transverse trough coil car body according to claim 17 , wherein each floating floor sheet is formed from ⅝″ ASTM A-572 Grade 60 plate product.

19. The transverse trough coil car body according to claim 18 , wherein each trough assembly is bolted to the sidewalls.

20. A transverse trough coil car comprising:

At least two spaced trucks;

A car body supported on the trucks and including a plurality of transverse troughs along the car body, the car body including:

i) a center sill extending substantially the longitudinal length of the car body,

ii) a pair of side walls extending the longitudinal length of the car body on opposed sides of the car, each side wall including a side sill, top chord and side plate extending between the top chord and the side sill; and

iii) a plurality of trough forming assemblies, with each trough forming assembly including at least one floating floor sheet which is coupled to trough forming assembly and structured to allow for thermal expansion in a first direction along a longitudinal axis of the car body and in a second direction transverse to the longitudinal axis of the car body.