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US 2003/0115827 A1Published application
Reinforced steel beam and hybrid joist
OwnerJai Chul Sim, Jai Ho Siminventors
Life of this patent
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Abstract
The I-beam or joist is reinforced with corrugation on its web to form triangular pattern of trust structure. It can also reduce weight by punching holes in between corrugations. This not only reduce weight, but also provide space for utilities lines, which offer more overhead room, better architectural design, and lower construction cost. The reinforced metal web is further employed in metal-wood hybrid joist with wood flanges, which is light in weight, provides space for utility lines, and also other materials like panels can be nailed to the flanges.
Claims9
A structural member of beam, comprising;
- a pair of spaced flanges facing each other, connected with intervening web having substantially uniform thickness;
- repeating patterns of corrugation on the web intermediate the flanges in combination of angles which form triangular pattern of trust structure.
Dependencies are inferred from the claim text.