Wind Pressure on Closed Pitched Free Roof
Wind Pressure on Closed Pitched Free Roof
(OP)
How would you apply wind pressures on the attached roof shape using ASCE-7 ? Or even if the shape was turned upside down.
It is a canopy structure so it is open below the bottom of the roof.
Basically it is a structure very similar to the shapes given for Pitched Free Roofs, however the bottom is closed not open. Would you apply pressures using the Open - Pitched Free Roof, then apply a pressure to the flat top surface as well (also internal pressure)?
Thanks for any comments.
https://dl.dropboxusercontent.com/u/65240332/Eng-T...
It is a canopy structure so it is open below the bottom of the roof.
Basically it is a structure very similar to the shapes given for Pitched Free Roofs, however the bottom is closed not open. Would you apply pressures using the Open - Pitched Free Roof, then apply a pressure to the flat top surface as well (also internal pressure)?
Thanks for any comments.
https://dl.dropboxusercontent.com/u/65240332/Eng-T...






RE: Wind Pressure on Closed Pitched Free Roof
for me its an open canopy - I mean no cover on sides. that is ,you will two cases: net upward case and net downward case.
RE: Wind Pressure on Closed Pitched Free Roof
EIT
www.HowToEngineer.com
RE: Wind Pressure on Closed Pitched Free Roof
RE: Wind Pressure on Closed Pitched Free Roof
the canopy may be on one column, if so, you have two things to check:
1-frequency is more than 1hZ
2-you have to take an eccentric load this is according, somehow, to the EC
I once designed a canopy on one column, the column was torsionally weak , the canopy kept moving in a twisting form almost in no wind situation