wood roof trusses
wood roof trusses
(OP)
I do not know where to post this but. How far can one span using 2x4 trusses system without a center support wall
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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RE: wood roof trusses
The manufacturers of prefab roof trusses publish span and load capacity information for their trusses. I suggest that you contact the manufacturers.
RE: wood roof trusses
RE: wood roof trusses
RE: wood roof trusses
RE: wood roof trusses
just analyse axial loads as a truss and be sure to add in local bending effects on top & bottom chords.
RE: wood roof trusses
Check your applicable Code book, they all have snow and wind loads. SBCCI has a map of the code areas at their website. BOCA does also but it's in the "Members Only" section.
RE: wood roof trusses
http://www.sbcci.org/influence.htm
That'll give you a start as to which code to use.
RE: wood roof trusses
Trying to design your own trusses is pretty much a waste of time, unless youre going to build them yourself. Prefab truss manufacturers will provide sealed designs as part of the service, and have some fairly sophisticated software to determine wind and snow loads over the roof system. The standard for lightweight trusses is ANSI TPI 1- 1995, and any fabricator has to conform to this.