Tag Archives: Strand7

3DFrame-NLGeom

Posted on 13/02/2025 by dougaj4

The VBA version of the 3DFrame spreadsheet has now been updated to allow geometric non-linear effects to be included. The new version can be downloaded from: 3DFrame.zip For more details of the VBA 3DFrame see 3DFrame update, and for the … Continue reading →

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton, Strand7, VBA | Tagged , , , , , | 3 Comments

py_Conbeam – 5

Posted on 28/08/2024 by dougaj4

… or perhaps one more. Following the previous post I have modified the py_BeamAct3D function to fix some problems with the non-linear analysis. The latest version, together with an additional spreadsheet comparing results with Strand7, can be downloaded from: py_ConBeamU.zip … Continue reading →

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Link to Python, Newton, PyXLL, Strand7, UDFs | Tagged , , , , , , , , , | Leave a comment

py_Conbeam – 4

Posted on 13/08/2024 by dougaj4

The last post in the current series compares results from the py_Conbeam function with beam analysis results from the Strand7 FEA software. There have been further  significant changes to the Python code and the spreadsheet, so please download the latest … Continue reading →

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Link to Python, Newton, NumPy and SciPy, PyXLL, Strand7, UDFs | Tagged , , , , , , , , , | 1 Comment

Secondary moments in prestressed beams with FEA-2

Posted on 14/02/2023 by dougaj4

Following the first post in this series, this post compares friction losses in prestressing cables as defined in the Australian Concrete Structures Code (AS 3600), compared with a cable modelled with contact elements in Strand7. The example used is based … Continue reading →

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton, Strand7 | 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