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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June 20, 2019

Understanding Wall Panel Forces with Rigid Diaphragms

When modeling building structures using steel or composite steel floors,...

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May 16, 2019

Pinned Beams in Semi-Rigid Diaphragms

When using semi-rigid diaphragms in a RISAFloor/RISA-3D model, it is...

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May 02, 2019

RISA Employees Participate in 5th Annual Run4Water 5k

RISA employees and their families recently participated in the 5th Annual...

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March 28, 2019

Assigning Seismic Loads in RISA-3D

RISA-3D has two ways of automatically generating seismic-related Basic...

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February 14, 2019

Connection Design per AISC 15th Edition Steel Manual now Available

Connection design according to the new AISC 360-16 (15th Ed.) Steel Manual...

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February 14, 2019

Out of Plane Design Checks on Column Web Connections

The AISC 360-16 (15th edition) has added a new section (see page 9-14...

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February 14, 2019

Updates to HSS Connections (Chapter K) according to AISC 15th Edition…

The most recent release of AISC 360-16 (15th Edition) includes changes to...

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February 14, 2019

What's New in RISAConnection v10

The release of RISAConnection v10 incorporates updates according to AISC...

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January 17, 2019

RISAFloor & RISA-3D: Two Buildings on the Same Podium

RISAFloor is the RISA Building System’s floor design software which allows...

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