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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Wood (2)

October 11, 2018

Wood Wall Panels - Straps vs Hold-Downs

With the recent release of RISA-3D v17 the program now offers the user the...

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October 02, 2018

Wood Design per AWC NDS 2018 Wood Code

The new AWC NDS 2018 code has been implemented into RISA-3D v17.0 and...

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September 06, 2017

Canadian Wood Design Updates

The latest releases of RISAFloor and RISA-3D include the following updates...

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April 12, 2017

CSA O86-14 Canadian Wood Code now Available

The new CSA O86-14 code has been implemented in RISA-3D v15.0 and...

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January 07, 2016

Mechanically Graded Wood Design now Available

Mechanically graded wood materials have been added for the AWC NDS 2015...

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December 22, 2015

Wood Design per AWC NDS 2015 Wood Code

The latest versions of RISA-3D and RISAFloor now incorporate the AWC NDS...

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September 22, 2015

Why Did the Wood Design Values Drop?

You may notice discrepancies in the wood design values when comparing RISA...

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February 26, 2015

Canadian Wood Design now Available

Timber design per the Canadian CSA 086-2009 design code is now available....

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June 01, 2011

How to Assign a Wood Roof Member’s Unbraced Length in RISAFloor

In RISAFloor, the beams are susceptible to two forms of buckling; Euler...

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