Category Archives: UDFs

A not so easy problem

Posted on 12/03/2023 by dougaj4

A seemingly simple problem was posted in my Quora feed: or to put it more mathematically, what three positive integers satisfy the equation: It turns out the answer is not so simple. A full and detailed derivation can be found … Continue reading →

Posted in Excel, Link to Python, Maths, Newton, PyXLL, UDFs | Tagged , , , , | 1 Comment

ULS Design Functions 2.16

Posted on 25/02/2023 by dougaj4

The ULS Design Spreadsheet has now been updated to Version 2.16, which can be downloaded from: ULS Design Functions The main new feature is the option to design for prestress loads applied to circular tanks. Due to axi-symmetric effects, when … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , , | 1 Comment

Using ConbeamU

Posted on 20/01/2023 by dougaj4

This post was prompted by a thread at Eng-Tips: https://www.eng-tips.com/threads/deflection-equations.501339/#post-8860838 The beam analysis functions in the ConbeamU spreadsheet allow for the use of any SI units, or any non-SI units found in the long list included with the spreadsheet. I … Continue reading →

Posted in Beam Bending, Excel, Frame Analysis, Newton, UDFs, VBA | Tagged , , , , , , , , | 12 Comments

More on combined shear and bending design to AS 3600

Posted on 15/12/2022 by dougaj4

Further to the last post on this subject I have been looking at procedures to speed up design for shear to AS 3600 when the “refined” analysis procedure is used. The issues that need to be addressed are: I have … Continue reading →

Posted in Beam Bending, Concrete, Excel, Link to Python, Newton, NumPy and SciPy, PyXLL, UDFs | Tagged , , , , , , , , | 4 Comments

Latex Maths Text in Excel

Posted on 27/11/2022 by dougaj4

There have been many posts here looking at alternative ways of working with functions entered as text on a spreadsheet, and working with units, most recently here. One drawback with this approach is that text in an Excel cell must … Continue reading →

Posted in Excel, Link to Python, Maths, Newton, NumPy and SciPy, PyXLL, UDFs | Tagged , , , , , , , , , , | Leave a comment