| 摘要 |
A freight carrying railroad car comprising a body supported at each end by wheel-containing trucks; the body having a vertical center beam extending longitudinally the length of the car between bulkheads at each end of the car; the center beam comprising a center sill, a top sill parallel to and spaced above the center sill, and a plurality of vertical spaced apart columns rigidly connected at their lower ends to the center sill and at their upper ends to the top sill; and at each end of the car, a vertical plate extending from the center sill to the top sill, and from the bulkhead at that end inwardly along the center sill; the vertical plate being joined to the center sill, top sill, bulkhead and a plurality of said columns and having a width no more than about one-fifth of the distance between the bulkheads.
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