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Joist girders |
A Canam joist girder is a primary structural component of a building. Generally, it supports floor or roof joists in simple span conditions or other secondary elements (purlins, wood trusses, etc.) evenly spaced along the length of the joist girder. The loads applied to a spandrel joist girder come from only one side; on an inside bay, the loads are applied on either side of the joist girder.
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| Simple beam | |  |
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| Gerber system | |  |
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| Canam joist girder | |  |
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