Pressurized hopper car interior side and roof bracing support st

Details Pressurized hopper car interior side and roof bracing support st Pressurized hopper car interior side and roof bracing support st

1979-09-04

1981-09-01

Peters, Jr., Joseph F.

Railway rolling stock

Special car bodies

Dumping

105377, 105406R, 105411, 406119, B61D 704, B61D 1708, B61D 1712, B61D 4900

Patent

active

042865247

ABSTRACT:
In a pressurized railway hopper car vertical and horizontal reinforcement members are strategically located relative to the car side plate to counteract the moment M caused by the internal pressure applied to the side sheets and to the roof. The vertical reinforcement member is spaced inwardly from the shear center of the side plate a distance determined by dividing the value of the moment M by the vertical component of the membrane pressure loads applied to the roof and to the side sheet. Horizontally extending reinforcements are provided extending between the laterally spaced side plates which are attached to the side plates at approximately the shear center of the side plate. With the horizontal and vertical members thus located, the vertical and horizontal reinforcing members will carry substantially axial loads only, essentially eliminating bending, and thus may be of reduced size as compared to the size which would be required if these members also carried bending loads.

REFERENCES:
patent: 1810770 (1931-06-01), Kind
patent: 3269779 (1966-08-01), Rollins
patent: 3339499 (1967-09-01), Charles
patent: 3713399 (1977-01-01), Bembridge et al.
patent: 3995541 (1976-12-01), Coyle et al.
patent: 4016691 (1977-04-01), Cale

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