The ASCE/SEI 7-22 Minimum Design Loads and Associated Criteria for Buildings and Other Structures introduces significant updates from ASCE 7-16. The most notable changes impact wind and seismic provisions, along with new load combination rules that directly affect structural analysis and design.
With the release of RISA-3D v23, engineers can now take advantage of these updates directly within their workflows.
Why This Matters for Engineers?
The most impactful provisions of ASCE 7-22 — wind, seismic, and load combinations — are now supported in RISA-3D v23, ensuring your projects remain compliant with the latest building codes and IBC 2024 adoption.
Download the latest versions of RISA that supports ASCE 7-22 below.
1. Wind Provisions
Key changes in ASCE 7-22 affect wind speed maps, velocity pressure equations, and roof zone definitions.
| Topic | ASCE 7-16 | ASCE 7-22 | Design in RISA |
|---|---|---|---|
| Wind Speed Maps | Based on 2016 hurricane data | Updated hurricane & transition zone maps | RISA-3D generates wind loads per ASCE 7-22, reflecting updated maps |
| Velocity Pressure (Kd) | Included directionality factor | Kd removed | Automatically handled in RISA-3D wind load generation |
| Roof Zones | Based on h/B ratio for hip roofs | h/B removed; new GCp values and roof zoning | RISA-3D applies updated coefficients for accurate roof wind loads |
| Simplified Wind | Allowed for simple diaphragm buildings | Method removed | Not supported in RISA; engineers should use full wind load generation |
2. Seismic Provisions
ASCE 7-22 refines seismic response parameters and response spectra, aligning with new hazard data.
| Topic | ASCE 7-16 | ASCE 7-22 | Design in RISA |
|---|---|---|---|
| Response Spectra | Based on earlier hazard data | Revised design response spectra | RISA-3D v23 generates seismic loads and spectra per ASCE 7-22 |
| Amplification Factors | Previous coefficients | Adjusted amplification factors | Applied automatically in seismic load generation |
| Non-structural Components | Older provisions | Modified response coefficients | Not currently modeled in RISA products |
3. Load Combinations
ASCE 7-22 introduces new load combination rules that align with IBC 2024.
| Topic | ASCE 7-16 | ASCE 7-22 | Design in RISA |
|---|---|---|---|
| Strength & Service Combinations | Based on ASCE 7-16 | Updated to reflect ASCE 7-22 / IBC 2024 | RISA-3D v23 includes full ASCE 7-22 load combination generator |