Integrated Engineering Software, Inc.

Integrated Engineering Software, Inc. IES creates software tools for structural engineers and related professionals. Our flagship product

We’ve published the final post in our VirtualWork blog series.Modeling Reinforced Concrete Stiffness – Part 4:Indetermin...
09/05/2025

We’ve published the final post in our VirtualWork blog series.

Modeling Reinforced Concrete Stiffness – Part 4:
Indeterminate Structures & Force Distribution
https://www.iesweb.com/virtualwork/concretestiffness/part4.html

How does reinforced concrete stiffness impact force distribution in indeterminate structures?

In this final post of the series, we model a simple frame with unequal column lengths and show how cracking and yielding affect the design moments. It’s a hands-on example that brings together everything we've covered so far.

We’ve published the next post in our VirtualWork blog series.Modeling Reinforced Concrete Stiffness – Part 3:FEA Modelin...
08/19/2025

We’ve published the next post in our VirtualWork blog series.

Modeling Reinforced Concrete Stiffness – Part 3:
FEA Modeling – Deflections
https://www.iesweb.com/virtualwork/concretestiffness/part3.html

This installment demonstrates how different cross-section stiffness assumptions—ranging from gross elastic to tangent stiffness—impact the predicted deflection of a reinforced concrete column modeled in VisualAnalysis.

By subdividing the column and applying varying stiffness factors, we illustrate how softening due to cracking and yielding can be incorporated. The example highlights how much difference the choice of stiffness can make—especially near capacity.

We’ve just published Part 2 of our series on modeling concrete stiffness.In Part 1, we looked at stiffness at the materi...
08/05/2025

We’ve just published Part 2 of our series on modeling concrete stiffness.

In Part 1, we looked at stiffness at the material level, how stress-strain behavior shapes E for steel and concrete. This time, we’re moving up to the section level.

Modeling Reinforced Concrete Stiffness – Part 2: Section Stiffness
https://www.iesweb.com/virtualwork/concretestiffness/part2.html

We calculate the bending stiffness (EI) of a reinforced concrete column four different ways—from gross section to tangent stiffness—and explore how assumptions about cracking, material behavior, and load level affect the results.

If you missed Part 1, we suggest you start from the beginning:
Modeling Reinforced Concrete Stiffness - Part 1: Material Behavior
https://www.iesweb.com/virtualwork/concretestiffness/part1.html

Next time... Part 3, where we’ll model columns in VisualAnalysis using the different stiffness values and see how it all plays out.

Some of you may remember *Virtual Work* as our occasional company newsletter. It’s been quiet for a while—but we’re brin...
07/29/2025

Some of you may remember *Virtual Work* as our occasional company newsletter. It’s been quiet for a while—but we’re bringing it back in a new form we think you’ll appreciate.

*Virtual Work* is now a blog focused on deeper engineering insights—especially the kinds of modeling and mechanics we think about as we build structural analysis software.

Each article is written by our in-house technical experts and focuses on engineering problems that have us intrigued.

The first post is live now:

Modeling Reinforced Concrete Stiffness – Part 1: Material Behavior
https://www.iesweb.com/virtualwork/concretestiffness/part1.html

We explore why stiffness in reinforced concrete isn’t constant, what the stress-strain curve really tells us, and how the meaning of “E” gets complicated fast.

If you’re into mechanics, modeling nuance, or just enjoy a good stress-strain plot—we think you’ll like it. And we’re just getting started.

02/14/2020

is back
10.0 has been officially released and is ready for use. Don't have a license? Download a free trial form our webiste and see what VF is all about. Over the next few weeks, we will highlight many of the new features available in VF 10 and provide ideas for applying them in your practice.
Feature: Specify Reinforcement
VisualFoundation 10 now allows reinforcement to be specified directly for each layer and direction, making it easier to check individual patterns or analyze existing structures where the reinforcement is known. Furthermore, reinforcement parameters can vary from slab to slab, so your exact configuration can be specified.
The choice is yours, specify the reinforcement directly or let VisualFoundation select the optimum reinforcement based on a set of predefined patterns. Link in bio for more information.

11/22/2019

: Member Coordinate Systems
Did you know that member elements in VA have three different coordinate systems? Global, Local, and Geometric.
Understanding how these coordinate systems are defined and how they correspond to the analysis results and design checks is fundamental to VisualAnalysis.
I encourage you to take a few minutes and head over to our YouTube page and watch our training video that reviews this important topic.
Take advantage of our customer appreciation sale and save 30-50% off all IES products. Promo codes in Bio.

Over the past 3 months, significant progress has been made on the building across the street at the corner of Wallace an...
11/15/2019

Over the past 3 months, significant progress has been made on the building across the street at the corner of Wallace and Babcock. We have enjoyed many coffee breaks watching steel get flown into place. With winter just around the corner, construction season tends to slow and design engineers’ desks become stacked with new projects. To maximize your productivity, consider using VisualAnalysis and other IES products to analyze and design your next concrete, steel, wood, aluminum, or cold formed steel structures.
Take advantage of our customer appreciation sale and save 30% - 50% off all IES products. Promo codes in Bio.
@ Downtown Bozeman

: VA19 Feature Wrap-UpAs we wrap up our VA19 Feature Friday series, there are a few other features we wanted to share ...
11/08/2019

: VA19 Feature Wrap-Up
As we wrap up our VA19 Feature Friday series, there are a few other features we wanted to share with you.
* A new Geometric Member Forces report table (useful for shapes such as angles)
* Stiffness reduction values (%Iy, %Iz, %A) are now available for all members, not just concrete
* We brought back Named Colors for those of you familiar with it from the VA12 days
* The number of stirrups shear legs can now be specified for concrete beams
* Keyboard shortcuts were added for the selection of "Individual Member" or "All in Group" from within Design View (customer suggestion)
* You can now insert a Vertex along an Area Side
* With two nodes selected, you can see the distance between them in the model's deflected shape (from the Result View)
These, along with numerous other improvements, have made this version of VisualAnalysis the best yet. If you have not tried VA 19, I encourage you to either download the free trial or upgrade from your current version.
P.S. - Take a look through our past posts to see other great features added in VA 19.0

Customer Appreciation Sale. Thank you to all our past, present, and future customers.Check out our Bio for 30% - 50% off...
11/05/2019

Customer Appreciation Sale. Thank you to all our past, present, and future customers.
Check out our Bio for 30% - 50% off all IES products.

11/01/2019

: Generated Loads
One of the main benefits of using Area Loads is to have them automatically distribute their load to the members or plates they cover.
But you also need the ability to double check that everything is getting distributed correctly. To do this, we have added two report tables that will display exactly how, and to what members/plates, the loads are being distributed to.
You will find these tables, Generated Member Loads and Generated Plate Loads, in the Available Tables list from the Report View.
Give them a try for yourself and let me know what you think ⬇️.

: CFS 12 & Revit 2020For those of you out there doing cold formed steel design, I wanted to let you know that VA 19 ha...
10/25/2019

: CFS 12 & Revit 2020
For those of you out there doing cold formed steel design, I wanted to let you know that VA 19 has been updated to use RSG Software CFS 12.
And for anyone who uses VisualAnalysis and Autodesk Revit, the VA-RevitLink 19.0 is a free add-in for Revit 2018-2020. Check out the link in our bio for a video demonstrating how to use the VA-RevitLink and us know what you think in the comments below.

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59718

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Wednesday 9am - 5pm
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