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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Deflection

December 17, 2021

Automatic Calculation of Long-Term Load Factors in ADAPT-Builder

With the release of ADAPT-Builder v21, users now has the option to have...

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June 29, 2021

Batch Printing & Beam Deflection Ratio Checks Now Available in…

As our team is hard at work updating and improving RISACalc based on...

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June 28, 2018

A Deeper Understanding of Deflection and Member Deflection Ratios

There are many different types deflection values calculated by RISA-3D....

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June 21, 2018

Beam Deflection Ratio Options

RISA-3D v16.0.4 introduces an enhancement that will allow for more control...

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April 26, 2018

Long Term Deflection in RISAFloor ES

RISAFloor ES has the ability to check the Long Term Deflection with Creep...

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September 16, 2015

How RISA-3D Calculates Member Deflection Ratios

After solving a model, you will see in the Member Deflections spreadsheet...

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July 01, 2014

Viewing the Deflected Shape in RISAFloor

The deflected shape is really helpful to understanding your model’s...

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September 06, 2013

Why Are The Steel Beam Deflections So Large?

When solving a RISA-3D model with hot rolled steel members under the AISC...

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May 15, 2013

How can I find the deflection of plates?

Below is a model of a flat concrete slab made of plates. In order to...

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