| Risk Category | Description | Importance Factor ($I$) | | :--- | :--- | :--- | | | Low hazard to human life (Ag, Storage) | 0.87 (Wind), 1.0 (Seismic) | | II | Standard Occupancy (Residential, Office) | 1.00 | | III | High Occupancy (Schools, Civic) | 1.15 (Wind), 1.25 (Seismic) | | IV | Essential Facilities (Hospitals, EOC) | 1.15 (Wind), 1.50 (Seismic) |
ASCE 7-22 refines Exposure B, C, and D. For a portable building placed in a field (Exposure C) for three months, you cannot legally design for Exposure B just because you plan to put it in a city later. asce 7 22 portable
To dive deeper into ASCE 7-22 and design loads for portable or mobile structures, I recommend: | Risk Category | Description | Importance Factor