Reinforced girder

Abstract

A reinforced girder including a first C-shaped member formed of sheet metal. A second C-shaped member, formed of sheet metal, is welded to the first C-shaped member to form a box. A first pair of metallic stringer assemblies is welded in a spaced-apart relationship within the first C-shaped member. The first pair of metallic stringer assemblies extends the length of the first C-shaped member. A second pair of metallic stringer assemblies is welded in a spaced-apart relationship within the second C-shaped member and extends the length of the second C-shaped member. A first pair of transverse connector assemblies is welded into the ends of the first C-shaped member between the first pair of stringer assemblies. A second pair of transverse connector assemblies is welded into the ends of the second C-shaped member between the second pair of stringer assemblies.

1 . A reinforced girder, comprising:
 a first C-shaped member being formed of sheet metal and having first opposed ends;   a second C-shaped member being formed of sheet metal and being welded to said first C-shaped member so as to form a rectangular box, and said second C-shaped member having second opposed ends;   a first pair of stringer assemblies being welded in a spaced-apart relationship within said first C-shaped member, said first pair of stringer assemblies extending the length of said first C-shaped member, each of said first pair of stringer assemblies including:
 a first central rod having first opposite ends; and, 
 a first pair of lateral rods, each being respectively affixed to one of the first opposite ends of said first central rod, each of said first pair of lateral rods having a smaller diameter than said first central rod; 
   a second pair of stringer assemblies being welded in a spaced-apart relationship within said second C-shaped member, said second pair of stringer assemblies extending the length of said second C-shaped member, each of said second pair of stringer assemblies including:
 a second central rod having second opposite ends; and, 
 a second pair of lateral rods, each being respectively affixed to one of the second opposite ends of said second central rod, each of said second pair of lateral rods having a smaller diameter than said second central rod; 
   a first pair of transverse connector assemblies being welded in a spaced-apart relationship within said first C-shaped member between said first pair of stringer assemblies; each of said first pair of connector assemblies being located at a respective one of said first opposed ends; and each of said first pair of connector assemblies having a plurality of first, transverse connectors being oriented parallel to one another and at right angles to said first pair of lateral rods; and,   a second pair of transverse connector assemblies being welded in a spaced-apart relationship within said second C-shaped member between said second pair of metallic stringer assemblies; each of said second pair of transverse connector assemblies being located at a respective one of said second opposed ends; and each of said second pair of transverse connector assemblies having a plurality of second, transverse connectors being oriented parallel to one another and at right angles to said second pair of lateral rods.