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US 10,240,341 B2Granted
Fire-resistant wooden I-joist
AssigneePinkwood Ltd.
InventorRichard Dettbarn
Life of this patent
Estimating the term…
Abstract
This application relates to I-joists which are configured to resist fire damage. Specifically, the present application relates to reinforcing I-joists with reinforcing members configured to provide structural support and/or to provide a physical barrier to fire. This may help the I-joists to maintain structural integrity during a fire and so help improve safety during evacuation of a building and during fire-fighting operations.
Claims22
A wooden I-joist comprising:
- a first flange;
- a second flange positioned opposite to the first flange;
- a continuous web spanning between the first flange and the second flange, such that each of the first and second flanges protrude laterally away from the web;
- multiple pairs of spaced-apart reinforcing members positioned along the length of the continuous web, wherein each reinforcing member is a single planar sheet of oriented strand board configured to span between facing surfaces of the first and second flanges, and enclose at least a portion of the outer surface of the web;
- a height of each reinforcing member being no greater than a distance between the facing surfaces of the first and second flanges;
- and
- a combined thickness of each pair of reinforcing members and the web enclosed therebetween being less than a width of the first and second flanges.
4 more elements
A kit of parts comprising:
- a first flange;
- a second flange positionable opposite to the first flange;
- a continuous web configured to span between the first flange and the second flange such that each of the first and second flanges protrude laterally away from the web;
- and
- multiple pairs of spaced-apart reinforcing members positionable along the length of the continuous web, wherein each reinforcing member is a single planar sheet of oriented strand board configured to span between facing surfaces of the first and second flanges, and enclose at least a portion of the outer surface of the web;
- a height of each reinforcing member being no greater than a distance between the facing surfaces of the first and second flanges;
- and
- a combined thickness of each pair of reinforcing members and the web enclosed therebetween being less than a width of the first and second flanges.
5 more elements
A method of manufacture comprising:
- inserting a I-joist into a building under construction, the I-joist comprising:
- a first flange;
- a second flange positioned opposite to the first flange;
- a continuous web configured to span between the first flange and the second flange, such that each of the first and second flanges protrude laterally away from the web;
- and
- thereafter connecting multiple pairs of spaced-apart reinforcing members positioned along the length of the continuous web, such that each reinforcing member is a single planar sheet of oriented strand board configured to span between facing surfaces of the first and second flanges, and encloses at least a portion of the outer surface of the continuous web;
- a height of each reinforcing member being no greater than a distance between the facing surfaces of the first and second flanges;
- and
- a combined thickness of each pair of reinforcing members and the web enclosed therebetween being less than a width of the first and second flanges.
6 more elements
Dependencies are inferred from the claim text.