Wind load for fabric building

[bmagdalena]

I have fabric building that I have to tie down to the foundation due to overturning.
Any idea which method to use to calculate wind load? Should I treat it as regular gable roof?

 

[frv]

There are special provisions for domed roofs in ASCE-7; that would probably be the closest.

 

[bmagdalena]

I looked at that but, my building has rectangular footprint 50ftx75ft.
Domed roofs refers to round footprint.

 

[hokie66]

That's not a dome, it's an arch.

 

[msquared48]

Quonset shape would be appropriate.

Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask

 

[IJR]

I agree with hokie66.

ASCE-7 on arches rising straight from ground should be appropriate for proportioning frame members. You are going to have plenty of uplift

The fabric is usually taut and can be considered just as rigid as normal cladding. The guys who design the fabric usually ensure it is taut enough not to bulge with wind or snow. I have seen designs that even eliminate purlins because the fabric guys can prestress the fabric to span between frames. Talk to a fabric designer too.

respects
ijr

 

[bmagdalena]

I just found in ASCE7-05 figure 6-8 for arched roofs. thanks

 

[JLNJ]

Be careful and read the thread on the Dallas Cowboy practice facility!