General building info
Confirm the inputs for this model. Values tagged auto are filled from the model or the ASCE hazard report — you can override any of them. Wind pressures (MWFRS + C&C) and snow distribution are computed from these.
General Building Info
Drives the ASCE hazard lookup (wind, snow, seismic).
From model geometry.
atan(dz/dx). Confirm units — see note below.
Detected from model / diaphragm extents.
Detected from model / diaphragm extents.
Gabled roofs only.
Dead & Live Loads
Seismic
0.2 s spectral response · from ASCE report.
1 s spectral response · from ASCE report.
Provided by geotechnical engineer.
Long-period transition · from ASCE report.
Short-period site coefficient · from Sₛ + site class.
1 s-period site coefficient · from S₁ + site class.
e.g. A2 = ordinary reinforced, A6 = ordinary precast, B3 = steel ordinary concentrically braced frame.
Response modification · set from system.
Overstrength · set from system.
Deflection amplification · set from system.
Wind
From ASCE report · Fig 26.5-1.
Directional factor · 0.85 for typical buildings.
Topographic factor · 1.0 for no hill.
Snow
From ASCE report · watch case-study (CS) areas.
Exposure factor.
Thermal factor.
Wind pressures (MWFRS & C&C) and snow loads are computed on our servers per ASCE 7. You review the full model before any analysis runs.