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Volume 10.4, April 2004

QuickRWall 1.5 Free Upgrade!

Here is the new math:

1.5($345) - 1.0($295) = $0.00

For those of you who invested in version 1.0 of QuickRWall, you can check the equation yourself at the online order form. But then, don't bother because this a Free Upgrade. You do not need to order anything, just use the built-in update command:

Help | iesweb.com | Update QuickRWall.

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For those of you still using some lesser Retaining Wall Design product, or trying to design walls in bits and pieces with complex FEA meshes and compression-only springs, it is time you tried QuickRWall 1.5.

Some of the Loading Input, click for more images from QuickRWall...

The improvements have all been customer-directed and customer-tested! The new QuickRWall 1.5 offers superior wall design capabilities with the following benefits:

bulletComprehensive Building Code Support:
bulletIBC 2003,
bulletConcrete ACI 318-02,
bulletMasonry MSJC 2002
bulletCanadian CSA A23.3-94
bulletEasy, Fast, and Graphical Interface
bullet A Powerful Feature Set, Including:
bulletMulti-tiered stems
bulletSeismic Loading
bulletLine or Strip Surcharges
bulletMultiple Materials
bulletPrecision Design Options
bulletBasement Walls (propped)
bullet Incredible Reporting
bulletProfessional 2 Page Summary Report
bulletSketch of Final Design (to DXF out!)
bulletTransparent Equations (for checking)

Version 1.5 has customization options to align the software with your common practices.

We have updated the QuickRWall 1.5 web pages with an on-line animated demo, you may also download the free-trial version and use it for 30-days (unless you tried version 1.0). Invest in the quality of your retaining wall designs at just $345 for a single-user license. Order it today!

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1994: IES Virtual Headquarters

"Thanks for calling IES", Melinda spoke pleasantly to the first caller into IES US Headquarters.

Melinda was (and is) the office manager extraordinaire at Creekside Veterinary Hospital in Bozeman, MT. For an all-too-brief period between 1994 and 1997 she was also the complete and total "IES Headquarters" staff. She had two phones on her desk (one for the hospital) and a host of dogs and cats to deal with. We give Melinda lots of credit for making our first customers, loyal customers! Melinda probably knew you by name and your dog's name too!

DOS Rules!
It was June of 1994 when the first sale took place. Ironically, it was a copy of AnalysisGroup for DOS that we sold first. Ironic because we had really wanted to be a Windows outfit and we had added AnalysisGroup for DOS as just a quick way of having two products instead of just one. That product was discontinued a year later when we released the pseudo Windows version. AnalysisGroup for Windows was a thin veil over the old script-based program, but it really got us out of the DOS world for good.

In those early years, Dan and Terry were both working their regular jobs at the university and IES was just a hobby. We set up the virtual office telephone number and the ability to forward calls in case anyone had a technical question. No email. No web site. No office! Just a couple of magazine ads (see last month's VirtualWork) to get the word out and a cheery voice on the phone.

It worked
IES software started going out the door to happy customers. Every day Dan would go home and package up the demo requests and orders; sitting at his computer feeding it floppy disks every 1 minute and 32 seconds. He would deliver them to the post office on his way to work the next day.

Keep those old floppy disks, they are collector's items now.

Terry handled technical support calls in his spare time. As a graduate research assistant (with too many years of school under his belt and too few degrees to show for it) that spare time occupied most of his day! But with only a dozen customers, the technical support duties were fairly light. Most of the questions in those first years were regarding how to do things in a "Windows way". Everyone kept looking for the command line way of creating members in VisualAnalysis!

Discovering the Business Model
Most of our time was spent in the lab trying to make the software easier to use while adding features that customers started requesting right away. Many of our customers were impressed by the interface but disgruntled by the lack of power they were used to in the $4000 packages they had used in the past.

It really wasn't engineering power that was lacking back then, but practical power. We had not really put our software to the test with real-world sized problems. So it was little things like: 200 page reports, or 15 minutes to scroll through a list of members that upset practicing engineers. In talking to a few upset customers, though, we discovered the secret to our success.

Next Month
Read about the secret of IES success the next issue of VirtualWork.

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CONTENTS
1994: Virtual Headquarters
Ask Dr. Dan
QuickRWall 1.5 Free Upgrade!
Whatever Floats Your Boat
Support Update
VisualAnalysis 5.10.0008 is Dead
Quick Links

Whatever Floats Your Boat

Students at universities around the country are designing concrete boats. Is this some sort of joke? We never think twice about steel barges, but who ever heard of making a Concrete Canoe?

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Well It's No Joke
These students are trying to apply cutting edge concrete design and manufacturing principles in such a way that they can get from point A to point B faster and without spalling, shrinking, or cracking. No small feat when you are trying to get your 21 ft, 350 lb canoe to fly.

Click for full-size image and names of team members!

We are the Champions!
In the recent Pacific Northwest regional competition MSU (No, not that MSU, the Montana State University!) team managed to show off their mix of athletic ductility, and shear strength. They crushed the competition!

We extend lesser congratulations to the other teams who'll have to face MSU at Nationals:

bulletFairmount State College
bulletWestern Kentucky University
bulletClemson University
bulletMichigan Tech
bulletU of Alabama Huntsville
bulletMcNeese State

The national competition will be held in Washington, D.C. from Thursday, June 17 to Sunday, June 20. Follow the link for more information about the ASCE sponsored competition.

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Ask Dr. Dan

imgBad Statics Check?
I have a project with all plate pressure loads in the Y direction. After analysis, the statics check shows that I have some small loads in the X and Z directions. Is this a bug or numerical round off?

Caution: Theory Zone Ahead!

Dr. Dan Replies:
Neither. When we do the statics check we use the deformed element position for evaluating the element applied loads. If the elements have rotated out of plane they have small components that are in the X and Z directions. The transformation matrix for the element therefore shows that the normal to the plate has very small X and Z direction components and the pressure loads go in those directions.

Skewed Spring Supports?
A customer sent in a VA 5.0 model with spring supports that were 'infinitely stiff' and slightly skewed. The springs were modeling battered piles. The results were not so nice and there was a question of numerical instability or round off playing too big a part.

Dr. Dan's Comments:
The problem is certainly numeric in nature. If the springs are changed from infinite stiffness to some numeric value (12 k/ft was my default) the results appear much more reasonable.

I get better results with his model if I change the inclined spring support to a vertical spring and horizontal infinite spring. I think the bottom line here is that inclined infinite supports should really be put on infinitely stiff in both directions as two springs.

[Editor's Note: Dr. Dan has since modified VisualAnalysis 5.1 so that it detects this condition and will automatically use multiple spring elements internally to help avoid this class of numerical problems. Just one more reason to upgrade!]

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VisualAnalysis 5.10.0008 is Dead

We are sorry to report the passing of "VA 5.10 Package, Build 8", which came into this world under severe developer duress and did not survive through the birth of its younger sibling Build 9.

We apologize for any download inconvenience this may cause you. If you attempt to update a Build 8 installation it will fail, so you must uninstall Build 8 in order to install Build 9 or any future updates.

Fortunately, the new build appears to have a much more promising future: it actually works.

VisualAnalysis Change Log: www.iesweb.com/news/
build-notes.htm

VisualAnalysis Updates:
www.iesweb.com/install.htm

If you have Build 5, 6, or 7 installed, you may update normally to Build 9 with a minimal download.

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Support Update

IES is busy fixing bugs and tweaking features to make it faster, stronger, leaner, and more friendly. In recent weeks we have updated ShapeBuilder 3.0 and VisualAnalysis 5.1, not to mention the new release of QuickRWall 1.5 (did we mention it was a free upgrade for 1.0 users?)

The IES web site is also undergoing organizational changes and there is a new installation and update page for customers:

www.iesweb.com/install.htm

This provides a great place to visit if you wish to install a new product, install an update, reinstall the latest update (for technical reasons) or just to find out what IS the latest version!

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