Category Archives: Concrete

ULS Design Functions – Python version

Posted on 02/04/2023 by dougaj4

I have now converted my ULS Design Functions spreadsheet (last presented here) to Python. The new spreadsheet and open source Python code can be downloaded from: py_ULS Design Functions The spreadsheet has the same functionality as the VBA version, providing … Continue reading →

Posted in Beam Bending, Concrete, Excel, Link to Python, Newton, PyXLL, UDFs | Tagged , , , , , , , , , , , , | 3 Comments

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

Secondary moments in prestressed beams with FEA

Posted on 09/01/2023 by dougaj4

Secondary (or hyperstatic) bending moments occur in prestressed beams that are continuous over internal supports, or have other redundant support conditions. Any eccentric prestress force will cause a beam to deflect, and if these deflections are restrained at internal supports, … Continue reading →

Posted in Beam Bending, Concrete, Excel, Finite Element Analysis, Frame Analysis, Newton, Strand7 | Tagged , , , , , , | 1 Comment

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

RC Design Functions 9.03; compression strut angle adjustment

Posted on 11/11/2022 by dougaj4

The RC Design Functions spreadsheet has now been updated to Version 9.03, and is available for free download from: RC Design Functions9.zip The new version includes a number of corrections to the calculation of beam shear and torsion capacity to … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , , | 2 Comments