BTW, our frame layout (which we got from the manufacturer) does not have any of this on the plan. Shouldn't it be shown?? As well as spacing of the vertical studs?? It only shows where the frame goes (numbered pieces of wood), and doors and windows!!
Oh, and marks some wood as "B type cross", "A type angle" or "smart joist xyz", or "HBx" or "HAx" (where x,y,z are some numerics).
It also ignores the steel placement - or, does the frame plan refer to timber parts only?
Thanks!
Are you lining(plasterboard) all walls? If so then everywall is "braced"... Even plasterboard contributes to the wall bracing calculations, although minmal..
There are so many different types of bracing... Flat strap, angle brace, plywood... And alot of homes use many methods to achieve the required bracing kN... AS1684 details the calculations, the effectiveness, and types of bracing...
Yes, your top walls will also be braced... Or at least should be! There is all sorts of requirements in terms of distribution and location of bracing, % of each wall etc in AS1684...
Your frame layout won't have bracing details... Bracing details will need to come from your structural engineer! The frame is built with the bracing in mind because depending on what bracing is required they have to make the necessary allowances to studs if cutting for angle brace...
B type cross is a bracing type... Typically metal strapping... Cheap and effective...
A angle is as it suggests, angle brace, where the angle is notched into the studs and noggins... Still cheap and effective...
HA is plywood bracing with M12 rods at each end...
HB is plywood bracing without M12 rods...
Tyically the number after HA or B is the stress grade of the timber.. F8,11,14 etc...
All detailed in AS1684.2 which your structural engineer will have worked the calculation to...