A system for connecting a center sill to a draft sill in a railcar includes a center sill portion that includes a center sill portion top plate, a draft sill portion that includes a draft sill top plate, the draft sill portion having a draft sill cross-section larger than a center sill cross-section of the center sill portion. The system further includes a transition portion between the center sill portion and the draft sill portion, the transition portion includes a transition portion top plate, wherein the transition portion top plate is the same plate as at least one of the center sill portion top plate and the draft sill portion top plate. A method for connecting the center sill to the draft sill in a railcar includes forming the transition portion between the center sill portion and the draft sill portion.

A system for connecting a center sill to a draft sill in a railcar includes a center sill portion that includes a center sill portion top plate, a draft sill portion that includes a draft sill top plate, the draft sill portion having a draft sill cross-section larger than a center sill cross-section of the center sill portion. The system further includes a transition portion between the center sill portion and the draft sill portion, the transition portion includes a transition portion top plate, wherein the transition portion top plate is the same plate as at least one of the center sill portion top plate and the draft sill portion top plate. A method for connecting the center sill to the draft sill in a railcar includes forming the transition portion between the center sill portion and the draft sill portion.

A cold formed center sill configured for extending substantially the length of a railcar, wherein said center sill includes a top wall, a pair of side sections joined to the top wall by a pair of upper curved sections, bottom sections coupled to the side sections through curved connecting sections, wherein the center sill includes an upwardly extending stiffening longitudinal rib centered within the top wall.

A cold formed center sill configured for extending substantially the length of a railcar, wherein said center sill includes a top wall, a pair of side sections joined to the top wall by a pair of upper curved sections, bottom sections coupled to the side sections through curved connecting sections, wherein the center sill includes an upwardly extending stiffening longitudinal rib centered within the top wall.

A railcar includes a floor structure including: an underframe including a pair of side sills and a plurality of cross beams arranged between the pair of side sills; a plurality of floor panel receivers located above the cross beams, arranged with gaps in a car width direction, extending along the cross beams, and fixed to the cross beams; one or more seat receivers extending through the gaps in a car longitudinal direction and fixed to the cross beams; and floor panels covering substantially entire surfaces of upper portions of the floor panel receivers and an upper portion(s) of the one or more seat receivers from above and supported by the cross beams through the floor panel receivers and the one or more seat receivers.

A railcar includes a floor structure including: an underframe including a pair of side sills and a plurality of cross beams arranged between the pair of side sills; a plurality of floor panel receivers located above the cross beams, arranged with gaps in a car width direction, extending along the cross beams, and fixed to the cross beams; one or more seat receivers extending through the gaps in a car longitudinal direction and fixed to the cross beams; and floor panels covering substantially entire surfaces of upper portions of the floor panel receivers and an upper portion(s) of the one or more seat receivers from above and supported by the cross beams through the floor panel receivers and the one or more seat receivers.

Some embodiments of the present disclosure provide a chassis component of a railway vehicle, and a railway vehicle. The chassis component includes two lower boundary beams provided at an interval and a sleeper beam provided between the two lower boundary beams. The sleeper beam includes: a web structure; a center pin, connected with a bogie of a railway vehicle; and a mounting frame, connected with the web structure, the center pin being provided on the mounting frame, the mounting frame including a plurality of vertical plates, and the plurality of vertical plates being provided at an interval along an outer wall surface of the center pin. The technical solution of the present disclosure can solve the problem in the related art of insufficient connecting strength of a center pin and a web structure of a sleeper beam.

An open top gondola car includes top chord sections; a pair of end walls and side walls coupled to the top chord structure, wherein each sidewall includes a side sheet a plurality of side stakes and side sill; and an underframe construction including a center sill running the length of the car, bolsters configured to be above truck assemblies and coupled to the center sill and a plurality of lateral I-Beam cross bearers that extend from the center sill toward and stopping short of the inside of the side sheet, and wherein the cross bearers include vertical connection plates configures for coupling to side stakes which are positioned between the bolsters.

An open top gondola car includes top chord sections; a pair of end walls and side walls coupled to the top chord structure, wherein each sidewall includes a side sheet a plurality of side stakes and side sill; and an underframe construction including a center sill running the length of the car, bolsters configured to be above truck assemblies and coupled to the center sill and a plurality of lateral I-Beam cross bearers that extend from the center sill toward and stopping short of the inside of the side sheet, and wherein the cross bearers include vertical connection plates configures for coupling to side stakes which are positioned between the bolsters.

A gondola car includes top chord sections; a pair of end walls and sidewalls coupled to the top chord structure, wherein each sidewall includes at least one side sheet a plurality of side stakes and side sill; and an underframe construction including a center sill running the length of the car, bolsters configured to be above truck assemblies and coupled to the center sill and a plurality of lateral I-Beam cross bearers that extend from the center sill toward and stopping short of the inside of the side sheet, and wherein the cross bearers include vertical connection plates configures for coupling to side stakes which are positioned between the bolsters, and longitudinal stringers extending from select ones of the cross bearers to one of the bolsters and longitudinal stringers extending from each bolster to one end wall structure of the pair of end walls.