FOS overturning check - uneven roof lengths
FOS overturning check - uneven roof lengths
(OP)
I have just started in timber house design & havent come across the case below yet, but it has puzzled me a fair bit. Does anyone has some ideas? -
Consider a standard timber frame duopitch house where the rear roof is much longer than the front roof:
Building height to ridge = 8m
Height of front wall = 5m
Height of rear wall = 2m
How is the overturning & restoring moment calculated in this case? This would be for the usual FOS vs overturning calc.
Consider a standard timber frame duopitch house where the rear roof is much longer than the front roof:
Building height to ridge = 8m
Height of front wall = 5m
Height of rear wall = 2m
How is the overturning & restoring moment calculated in this case? This would be for the usual FOS vs overturning calc.





RE: FOS overturning check - uneven roof lengths
Are you asking this because your roof suction is causing it to sway into the wind?
If so, then I have come across this before, I took the wall loads only and calculated the overturning based on that (if this is worse). Otherwise neglect the wind on the rear cantilever and take that as your overturning.
csd
RE: FOS overturning check - uneven roof lengths
RE: FOS overturning check - uneven roof lengths
Other than that, I cant help much as it has been a while since I have used a BSI standard.
csd