Static structures (e.g. – buildings) – Machine or implement
Patent
1973-10-02
1976-03-30
Ridgill, Jr., James L.
Static structures (e.g., buildings)
Machine or implement
52730, 29155R, E04C 330, B23P 1700
Patent
active
039465330
ABSTRACT:
A torsion resistant girder for supporting a crane rail in which the rail is supported on the top chord and the web of the girder includes an upper marginal portion formed integrally with the top chord by rolling or extrusion and the remainder of the web is a thinner plate welded at its upper edge to the depending free edge of the portion of the web plate formed integrally with the top chord member. This construction is designed to prevent failure of the girder along the line of junction between the web and the top chord. The web stiffening plates of the girder include wing plates connected to the outer free edges of the web stiffening plates and to the top chord. The wing plates and the upper portion of the web plate stiffening plates may be formed integrally by rolling or extrusion.
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Jones Larry C.
Raugh Donald D.
National Steel Corporation
Ridgill, Jr. James L.
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