Understanding Sign Conventions for Wall Panels & Plates Across RISA Software
September 4, 2025

Understanding Sign Conventions for Wall Panels & Plates Across RISA Software

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...

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Understanding Sign Conventions for Members Across RISA Software
September 4, 2025

Understanding Sign Conventions for Members Across RISA Software

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...

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Slab vs. Spread Footing in RISAFoundation: What's the Difference?
July 29, 2025

Slab vs. Spread Footing in RISAFoundation: What's the Difference?

We often get asked: “Should I model my foundation as a slab or a spread footing in RISAFoundation?” While both are valid options, they use very different analysis methods, and the results can vary accordingly. In this article, we’ll walk through a side-by-side comparison, using the same modeled...

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Designing Light-Framed Structures: Tips for Wood & CFS
July 22, 2025

Designing Light-Framed Structures: Tips for Wood & CFS

Light-framed construction has become increasingly prevalent in mid-rise and modular development, driven by its cost-efficiency, speed of construction, and adaptability. But with flexibility comes complexity. Engineers designing with wood and cold-formed steel (CFS) must navigate a unique set of...

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How RISA-3D Handles Wall Surface Loads at Openings
July 17, 2025

How RISA-3D Handles Wall Surface Loads at Openings

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...

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RISAConnection in Practice
July 15, 2025

RISAConnection in Practice

Steel buildings are rarely simple—and the connections that tie them together often present some of the biggest design and coordination challenges. For engineers in the field, tools like RISAConnection aren’t just software—they’re essential to streamlining design, verifying code compliance, and...

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Rethinking Tall Building Design
June 24, 2025

Rethinking Tall Building Design

In structural engineering, few design challenges are as rewarding—or as unforgiving—as the tall building. While gravity systems and code checks form the backbone of any structural project, once a structure rises beyond ten or fifteen stories, a shift occurs. Wind and seismic forces begin to...

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Understanding Plate and Member Interaction in RISA
June 17, 2025

Understanding Plate and Member Interaction in RISA

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...

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