Thank you, Dr. McAnally, for your invaluable contribution and constant guidance. I find myself learning new meanings, concepts, and professional values from your insights every day.
I truly appreciate the significant example you shared regarding the US Army Corps of Engineers and the TABS models; it underscores the robustness required in our professional work. My contribution was a modest attempt to tackle a large and complex issue, and while this post started as a way to break some 'computational dryness,' your participation has transformed that initial spark into a very valuable methodological foundation.
I also want to thank all my colleagues for sharing their fascinating experiences. They prove that a skilled engineer, equipped with the right tools like Excel, can translate any vision into a living, dynamic tool.
I have deeply enjoyed this inspiring discussion and learned so much from all of you. This is truly what defines our remarkable ASCE community.
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Abubakr Gameil, R. ENG, M. ASCE®️,
MSc-Holder, [ SEI, EWRI, CI, ISSMGE ]Mermber
Past / Chairman & Director General
Almanassa Engineering International Co. Ltd,
Khartoum, Sudan
Currently / UAE- Humanitariam Residency
NXN- Central branch -Al Fujairah,
PO.Box : 1142 (Fujairah)
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Original Message:
Sent: 02-26-2026 11:10 AM
From: William McAnally
Subject: The weirdest spreadsheet you've ever made?
Abubakr: It sounds as if you have designed the perfect approach to ensure that your spreadsheet produces correct results. When I worked for the Corps of Engineers we used a very similar technique for our TABS suite of open channel flow and sediment transport models. We employed a large number of standard tests to ensure that model upgrades and patches didn't compromise the models' ability to correctly solve the equations of motion. In the modern vernacular, it's called verification. A large number of tests were required to test all the possible loops and routines in thousands of lines of Fortran code. Then for each project application we compared the results to observed (hindcast) data and evaluated them for reasonableness in a process we now call validation.
Thanks for posting.
Bill Mc
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William McAnally Ph.D., P.E., BC.CE, BC.NE, F.ASCE
ENGINEER
Columbus MS
Original Message:
Sent: 02-25-2026 07:23 AM
From: Abubakr Gameil
Subject: The weirdest spreadsheet you've ever made?
Thank you, Dr. William. You've touched on the most critical aspect of engineering tools: Validation.
While the interface appears complex, its 'intelligence' is strictly grounded in the BS 8110 design philosophy. I have rigorously verified the output through manual cross-checks to ensure the total area of steel (As) and bar spacing comply with the code requirements.
To ensure reliability, the tool was tested against specific boundary conditions: it achieves optimal results for section widths between 150 mm and 1000 mm, and accommodates high-yield reinforcement diameters ranging from 8 mm to 28 mm. These constraints ensure that the 'logical' output remains within the realm of practical, safe, and buildable field applications.
What makes this spreadsheet unique is that it isn't just a calculator; it's a Decision-Support Tool. It uses a dense network of logical functions (Nested IFs) to 'think' through the code's constraints-balancing economy and safety-rather than just processing numbers. It effectively translates engineering intuition into a digital logic.
I believe that as we move further into the AI era, our role as engineers is to build 'logical guardrails' that ensure our digital tools remain faithful to the fundamental principles of structural integrity. I would be honored to hear your thoughts on this approach.
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Abubakr Gameil, R. ENG, M. ASCE®️,
MSc-Holder, [ SEI, EWRI, CI, ISSMGE ]Mermber
Past / Chairman & Director General
Almanassa Engineering International Co. Ltd,
Khartoum, Sudan
Currently / UAE- Humanitariam Residency
NXN- Central branch -Al Fujairah,
PO.Box : 1142 (Fujairah)
Original Message:
Sent: 02-24-2026 12:45 PM
From: William McAnally
Subject: The weirdest spreadsheet you've ever made?
That sounds cool and really complicated to a non-structural person like me, Abubakr. How did you test it to be sure it consistently provided correct answers?
Bill Mc
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William McAnally Ph.D., P.E., BC.CE, BC.NE, F.ASCE
ENGINEER
Columbus MS
Original Message:
Sent: 02-23-2026 04:23 PM
From: Abubakr Gameil
Subject: The weirdest spreadsheet you've ever made?
I really enjoyed reading these creative examples of unconventional spreadsheet use.
For me, the "weirdest" (and perhaps smartest) spreadsheet I built dates back to 2015, when I tried to address a limitation in ETABS 2013. At that time, the software provided design results but did not test whether reinforcement distribution was practical or compliant with section dimensions.
I developed a file that does not rely on a single formula, but rather on a dynamic network of logical functions derived from the philosophy of BS 8110. The spreadsheet intelligently evaluates reinforcement layouts, balancing bar count, diameters, and section dimensions against code requirements, and then suggests the most economical and feasible distribution.
To illustrate,
I've attached three screenshots along with the file itself:
Image 1 shows the case of an ideal distribution, where spacing and bar arrangement are both economical and code-compliant.
Image 2 demonstrates a costly distribution, where the file flags inefficiency and proposes alternative bar diameters or spacing to optimize the design.
Image 3 highlights a case of weak methodology, where the arrangement does not meet code requirements, and the file provides clear recommendations to correct the layout.
In practice, this interplay between section geometry and bar diameter is the essence of BS 8110's design philosophy, and the spreadsheet translates it into a practical decision tool.
I would be delighted if you try the file yourselves and share your valuable feedback. Your insights will be highly appreciated.
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Abubakr Gameil, R. ENG, M. ASCE®️,
MSc-Holder, [ SEI, EWRI, CI, ISSMGE ]Mermber
Past / Chairman & Director General
Almanassa Engineering International Co. Ltd,
Khartoum, Sudan
Currently / UAE- Humanitariam Residency
NXN- Central branch -Al Fujairah,
PO.Box : 1142 (Fujairah)
Original Message:
Sent: 01-29-2026 12:56 PM
From: Christopher Seigel
Subject: The weirdest spreadsheet you've ever made?
A friend recently told me he might need to start a list of... all the dead people he knows.
Dark? Yes.
Organized? Also yes.
That got me thinking about some of the more fun spreadsheets I've made over the years.
One of my personal favorites:
I ranked the food I ordered through the Too Good To Go food waste app. (If you don't use this app yet, consider checking it out.)
Since you never really know what you're going to get, I started tracking the following stats from each food place I'd use the app at:
After a few orders, I basically had a data-driven leaderboard of surprise leftovers.
What's the weirdest, funniest, or most unexpected spreadsheet you've ever made?
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Christopher Seigel P.E., M.ASCE
Civil Engineer
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