Risa Tips & Tricks: How to Use Our Structural Analysis Software

September 24, 2026

One Model, Many Materials: Understanding Multi-Material Structural Design with Integrated Design Tools

Modern building design is increasingly defined by hybrid systems. Engineers are combining multiple building materials within a single structure to meet demands for efficiency, constructability, and performance. This approach allows each material to be used where it performs best, but it also introduces a level of complexity. Coordinating different material behaviors within one structural system and load path is no longer a niche challenge. It is becoming standard practice. What is Multi-Material Structural Design Multi-material structural design is the practice of using different building materials in one coordinated structural system so that load paths, stiffness, and movement are all working together. In real projects, this shows up as: Mass timber framing on top of a concrete podium Steel transfer beams carrying concrete slabs above Masonry cores tied into wood gravity framing These systems are now common in commercial and residential projects, especially as teams look for more sustainable and efficient buildings. Why Multi-Material Design Matters Using multiple materials allows engineers to fine-tune structural systems and capitalize on the best attributes of each material. Multi-material structural systems help you: Provide stiffness where you need it, such as at a concrete core Allow for long spans and complex geometries by utilizing steel…

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November 20, 2013

Why Is My Beam Failing in Shear?

When solving a RISA-3D model you may find you have a Shear UC (unity...

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June 23, 2013

Customizing Labels in RISA-Revit Link

You can now customize the member and nodes names Revit uses during the...

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February 07, 2013

Tapered Member Design Using AISC Design Guide 25

RISA has now incorporated the tapered member design provisions from Steel...

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October 10, 2012

Using Virtual Joist Girders in RISAFloor

The Steel Joist Institute (SJI) has recently put together a Virtual Joist...

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October 04, 2012

Using Virtual Joist Girders in RISA-3D

The Steel Joist Institute (SJI) has developed a Virtual Joist Girder table...

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September 06, 2012

How to Install a RISA Program on a Mac

RISA programs are Windows-based and require a Windows operating system to...

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February 23, 2012

How Do I Resolve a P-Delta Instability?

Investigating P-Delta instabilities in RISA-3D (or RISA-2D) can be...

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July 28, 2010

How Do Plates Connect to Members?

In order to understand the interaction between plates and members it is...

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March 17, 2010

Do You Ever Get the “LOCKED” Message on a Simple Beam Model?

Do you get an instabilities warning when you’re trying to do a simple 2D...

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