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 rectangular box. A first pair of metallic stringers is welded in a spaced-apart relationship within the first C-shaped member. The first pair of metallic stringers extends the length of the first C-shaped member. A second pair of metallic stringers is welded in a spaced-apart relationship within the second C-shaped member and extends the length of the second C-shaped member. A pair of first, metallic, transverse connectors is welded within the first C-shaped member between the first pair of metallic stringers. The first, metallic, transverse connectors radiate outwardly from a common point of contact at an angle. A pair of second, metallic, transverse connectors is welded within the second C-shaped member between the second pair of metallic stringers. The second, metallic transverse connectors radiate outwardly from a common point of contact at an angle.

1 . A reinforced girder, comprising:
 a first C-shaped member being formed of sheet metal;   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;   a first pair of metallic stringers being welded in a spaced-apart relationship within said first C-shaped member, said first pair of metallic stringers extending the length of said first C-shaped member;   a second pair of metallic stringers being welded in a spaced-apart relationship within said second C-shaped member, said second pair of stringers extending the length of said second C-shaped member;   a pair of first, metallic, transverse connectors being welded within said first C-shaped member between said first pair of metallic stringers, said first, metallic, transverse connectors radiating outwardly from a common point of contact at an angle; and,   a pair of second, metallic, transverse connectors being welded within said second C-shaped member between said second pair of metallic stringers, said second, metallic, transverse connectors radiating outwardly from a common point of contact at an angle.   
     
     
         2 . A reinforced girder, comprising:
 a first C-shaped member including:
 a first intermediate wall; 
 a first pair of end walls being affixed to said first intermediate wall and extending at right angles therefrom; and, 
 a first pair of flanges being affixed to said first pair of end walls and extending at right angles therefrom in a common plane parallel to said first intermediate wall; 
   a first pair of metallic stringers being respectively welded within said first C-shaped member at the junctions of said first pair of end walls with said first intermediate wall;   a pair of first, metallic, transverse connectors being welded to said first intermediate wall between said first pair of metallic stringers, said first, metallic, transverse connectors radiating outwardly from a common point of contact at an acute angle;   a second C-shaped member being welded to said first C-shaped member so as to form a box, said second C-shaped member including:
 a second intermediate wall; 
 a second pair of end walls being affixed to said second intermediate wall and extending at right angles therefrom; and, 
 a second pair of flanges being affixed to said second pair of end walls and extending at right angles therefrom in a common plane parallel to said second intermediate wall, said second pair of flanges being in abutment with said first pair of flanges; 
   a second pair of metallic stringers being respectively welded within said second C-shaped member at the junctions of said second pair of end walls with said second intermediate wall; and,   a pair of second, metallic, transverse connectors being welded in a spaced-apart relationship to said second intermediate wall between said second pair of metallic stringers, said second, metallic, transverse connectors radiating outwardly from a common point of contact at an acute angle.   
     
     
         3 . A reinforced girder, comprising:
 a first C-shaped member being formed of sheet metal;   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;   a first pair of metallic stringers being welded in a spaced-apart relationship within said first C-shaped member, said first pair of metallic stringers extending the length of said first C-shaped member;   a second pair of metallic stringers being welded in a spaced-apart relationship within said second C-shaped member, said second pair of stringers extending the length of said second C-shaped member;   a pair of first, metallic, transverse connectors being welded within said first C-shaped member between said first pair of metallic stringers, said first, metallic, transverse connectors radiating outwardly from a first, common point of contact at an angle, and said first, common point of contact being located at the midpoint of said first C-shaped member; and,   a pair of second, metallic, transverse connectors being welded within said second C-shaped member between said second pair of metallic stringers, said second, metallic, transverse connectors radiating outwardly from a second, common point of contact at an angle, and said second, common point of contact being located at the midpoint of said second C-shaped member.