Category Archives: Frame Analysis

3DFrame – 3D Frame analysis for Excel

Posted on 22/01/2013 by dougaj4

I have now extended the Frame4 spreadsheet to deal with 3D frames.  As well as making the necessary changes to the input ranges and stiffness matrix generation routines I have revised the Sparse solver routine, added a new compiled solver, and … Continue reading →

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Link to dll, Newton, Strand7, VBA | Tagged , , , , | 21 Comments

Defining beam orientation in 3D

Posted on 19/01/2013 by dougaj4

The principal axes of a beam (or any 2D closed shape) are defined as the axes along which an applied load will not cause any deflection in the transverse direction.  In mathematical terms, if the beam cross-section is defined in the … Continue reading →

Posted in Beam Bending, Coordinate Geometry, Frame Analysis, Maths, Newton | Tagged , , , , | Leave a comment

Extending Frame4 with on sheet formulas

Posted on 11/12/2012 by dougaj4

Still on Frame4, Julien asked if provision could be made for application of local loads, i.e. loads perpendicular to sloping members, rather than just horizontal or vertical.  This will actually be incorporated in the spreadsheet “real soon now”, but it … Continue reading →

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

Frame4 Version 3.05; with support displacements

Posted on 06/12/2012 by dougaj4

Hot on the heels of Version 3.04 comes Version 3.05. A few days ago Julien asked if the Frame4 allowed for specified support deflections, to which I replied it would be added in the future.  Searching Google on the topic I … Continue reading →

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton, Strand7, VBA | Tagged , , , , | 7 Comments

Frame4 Version 3.04

Posted on 05/12/2012 by dougaj4

In preparation for adding 3D functionality to the Frame4 spreadsheet I have rearranged the load input sheet, and in doing so I noticed that the fixed end reaction calculation was incorrect for cases where loads were applied to one member over … Continue reading →

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