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....
The ANSI/AISC 360 Specification for Structural Steel Buildings is the cornerstone reference for structural steel design in the U.S. The transition from the 2016 edition (ANSI/AISC 360-16) to the 2022 edition (ANSI/AISC 360-22) reflects both advances in research and the need for closer alignment...
With the adoption of ASCE 7-22, the concept of a multi-period response spectrum has been added to seismic design requirements. While this provides more accurate hazard representation, it also means engineers need to generate and input additional site-specific data. This quick workflow shows how to...
While members (beams and columns) follow conventions tied to their local axes, interpreting results for wall panels, plate elements, and design strips requires a slightly different perspective. These elements deal with both in-plane and out-of-plane behavior, and the sign conventions can change...
RISA software products use different sign conventions depending on the product’s purpose and typical use case. While the conventions are logical within each program, they may appear inconsistent when moving between tools like RISA-3D, RISAFloor, RISAFoundation, and RISAConnection. This article...
Exploring a new structural design software purchase? If you’ve ever wondered how RISA’s software could fit into your structural design workflow, a RISA Software Tour is the fastest way to find out—no guesswork, no canned presentations. In this free, 1-hour session, you’ll meet 1-on-1 with a RISA...
When designing shear walls in RISA-3D, it’s common to add surface loads—whether to simulate lateral wind or seismic pressures, or even out-of-plane loads. But what happens when those loads intersect with openings in your wall panels? Let’s walk through exactly how RISA-3D handles this scenario...
When modeling plate elements alongside member elements in RISA, users may notice that member forces—such as bending moments or axial loads—are lower than expected. This behavior is often the result of how loads are shared between plates and members based on their relative stiffness. If the...
