LargeDeflections
Structural
- Oct 16, 2015
- 4
This is a bit of a fun one:
What's the largest force coefficient that you can create with your national code? I'm using ASCE 10 for reference.
We'll say you have a short building perched on top of a 2d ridge with a sawtooth roof and is fully enclosed. (GCp = 4.1 near corners, GCpi = 0.18)
The hill is very large such that H/Lh is at least 0.5, x/Lh is ~0 and z/Lh is ~0. (Kzt = 2.96)
Somehow the exposure is D and the building is considered a critical structure (Kz = 1.03, Kd = 1.0, I = 1.25)
Also, we're in Guam so the basic wind speed is 160 mph.
qh = 0.00256(1.03)(1.0)(2.96)(1.25)(160)^2 = 249 psf.
p = qh(GCp - GCpi) = 979psf uplift on the corners. Or, basically, the multiplier used on the roof overhang is 14.94.
What other ridiculous force scenarios can you create with the code?
What's the largest force coefficient that you can create with your national code? I'm using ASCE 10 for reference.
We'll say you have a short building perched on top of a 2d ridge with a sawtooth roof and is fully enclosed. (GCp = 4.1 near corners, GCpi = 0.18)
The hill is very large such that H/Lh is at least 0.5, x/Lh is ~0 and z/Lh is ~0. (Kzt = 2.96)
Somehow the exposure is D and the building is considered a critical structure (Kz = 1.03, Kd = 1.0, I = 1.25)
Also, we're in Guam so the basic wind speed is 160 mph.
qh = 0.00256(1.03)(1.0)(2.96)(1.25)(160)^2 = 249 psf.
p = qh(GCp - GCpi) = 979psf uplift on the corners. Or, basically, the multiplier used on the roof overhang is 14.94.
What other ridiculous force scenarios can you create with the code?
