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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RISAFloor (14)

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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July 12, 2012

How to Add a Deck to a RISAFloor Model

RISAFloor has some default decks provided for you when you open the...

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March 01, 2012

How to Get a Code Check for Custom Cold Formed Steel Shapes

In order to get code calculations, RISA-3D and RISA-2D need to know what...

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January 05, 2012

How Do I Assign Joists with Exact Spacing in RISAFloor?

If you want to assign joists in a framing bay with an exact spacing...

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November 17, 2011

How Do I Assign Drift Snow Loads to the Roof in RISAFloor?

RISAFloor has the ability to apply tapered snow loads on your building’s...

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November 10, 2011

How Do You Define Additive Area Loads in RISAFloor?

RISAFloor uses the Area Load Definitions spreadsheet to define area loads...

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October 13, 2011

How to Check Floor Vibrations Using RISAFloor

One of the most overlooked design criteria for commercial buildings is the...

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October 06, 2011

How to Assign Column Splices in RISAFloor

RISAFloor has the ability to model column splices for all columns. You...

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September 06, 2011

Methods to Integrate with RISAConnection

There are several ways to take your RISA-3D or RISAFloor model to...

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