Category Archives: Frame Analysis

Continuous beam with specified end conditions …

Posted on 09/08/2009 by dougaj4

… and/or support displacements. The previous post in this series derived cubic splines with specified end conditions; either a specified curvature or a specified end slope. I have adapted the splinebeam function to allow input of specified end conditions (either a … Continue reading →

Posted in Arrays, Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Maths, Newton, UDFs, VBA | Tagged , , , , , , , | 1 Comment

Update to Frame4.xls

Posted on 19/07/2009 by dougaj4

It was recently pointed out to me that the non-uniform load calculation in Frame4.xls gave incorrect results. The code for the non-uniform load has now been fixed, and the spreadsheet can be downloaded from Frame4.zip

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

More on cubic splines

Posted on 12/07/2009 by dougaj4

Link to Cubic Spline Update The previous two posts used cubic splines with the “natural” end condition, that is with an end curvature of zero.  To apply the cubic spline to analysis of continuous beams with different end conditions we … Continue reading →

Posted in Beam Bending, Excel, Frame Analysis, Maths, Newton, UDFs, VBA | Tagged , , , , | 10 Comments

Continuous beam analysis with cubic splines

Posted on 05/07/2009 by dougaj4

The last example in the previous post illustrated the use of cubic splines to find the bending moments in a continuous beam subject to prescribed lateral displacements.  A similar technique can be used to find bending moments, shear forces, reactions, … Continue reading →

Posted in Arrays, Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Maths, Newton, UDFs, VBA | Tagged , , , , , , , | 9 Comments

Frame Analysis with Excel – 7; Shear deflections and support displacements

Posted on 11/05/2009 by dougaj4

Continuing from: Frame Analysis with Excel – 6; Beam end releases and actions Download Frame4.zip – the download file includes complete open source code. Two more refinements have been added to the frame analysis spreadsheet: The stiffness matrix has been revised to … Continue reading →

Posted in Excel, Finite Element Analysis, Frame Analysis, Newton, VBA | Tagged , , , | 31 Comments