Tag Archives: Frame Analysis

Column buckling under multiple loads

Posted on January 20, 2020 by

Following another buckling discussion at Eng-tips I have modified my Frame4-buckle spreadsheet to allow input of multiple axial loads at any point along the column, along with any number of sections with different section properties.  Background on the method used … Continue reading →

Posted in AlgLib, Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton, UDFs, VBA | Tagged , , , , , , , , , | Leave a comment

Beam geometric non-linear effects

Posted on April 21, 2018 by

A quick and convenient way to allow for the effect of deformations on the behaviour of beams and columns under axial load is to adjust the beam stiffness matrix, so that the calculated deflections are in equilibrium with the applied … Continue reading →

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton, UDFs, VBA | Tagged , , , , , , | 2 Comments

Frame Analysis Resources

Posted on April 17, 2018 by

I recently discovered: Matrix Structural Analysis, 2nd Edition, by McGuire, Gallagher, and Ziemian. which is available for free download: Description The aims of the first edition of Matrix Structural Analysis were to place proper emphasis on the methods of matrix … Continue reading →

Posted in Finite Element Analysis, Frame Analysis, Newton | Tagged , , | 1 Comment

Using the Frame Analysis Spreadsheets

Posted on July 20, 2017 by

Following some recent questions in the comments, here are some answers: How can nodal moments be created? The current versions only allow for forces to be applied to beams, but any point load or moment applied at the start or … Continue reading →

Posted in Excel, Finite Element Analysis, Frame Analysis, Newton, VBA | Tagged , , , , | 2 Comments

Installing Frame4 and 3DFrame

Posted on July 17, 2017 by

Following a recent comment I have added a VBA only version to the download files of the frame analysis spreadsheets: 3DFrame.zip Frame4.zip The VBA versions should work on any version of Excel from 2007, with macros enabled, without any further installation. The … Continue reading →

Posted in AlgLib, Excel, Frame Analysis, Link to dll, Newton, VBA | Tagged , , , , , , | Leave a comment

Frame analysis with spring releases; 2D

Posted on November 25, 2016 by

I have updated the Frame4 spreadsheet to allow a rotational spring stiffness to be specified for members with a rotational end release.  The new file can be downloaded from: Frame4.zip See Installing C# dll files, reminder for details of installing the … Continue reading →

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Link to dll, Newton, Strand7, VBA | Tagged , , , , | 1 Comment

Non-linear frame analysis; moment curvature and self-weight

Posted on October 10, 2016 by

The Python/Fortran/Excel frame analysis program (previous version here) now has several new features added to the 2D-solver routines: The beam bending behaviour may now be specified with moment-curvature tables, rather than the linear-plastic behaviour required in the previous version. Beam … Continue reading →

Posted in Arch structures, Beam Bending, Concrete, Excel, Finite Element Analysis, Fortran, Frame Analysis, Link to dll, Link to Python, NumPy and SciPy, Strand7, VBA | Tagged , , , , , , , , , , , , , | 1 Comment