Author Archives: dougaj4

The “Glass Bridge” King’s Park, Perth

Posted on 19/12/2011 by dougaj4

The Lotterywest Walkway is a fairly recent addition to Perth’s King’s Park, featuring a spectacular arched pedestrian bridge built of weathering steel with glass parapets.  My impressions are shown in the photos below.  Click on any image for a slide show.

Posted in Arch structures, Newton | Tagged , , , , | Leave a comment

Dynamic Excel on the Cloud With Javascript!

Posted on 16/12/2011 by dougaj4

I have previously linked to a spreadsheet stored on Skydrive, but I have been disappointed that the possibilities for using live spreadsheets are greatly limited by the lack of support for VBA.  It seems that Microsoft have now decided to provide … Continue reading →

Posted in Animation, Charts, Computing - general, Excel, Javascript | Tagged , , , | 1 Comment

Continuous Beams With Spring Supports by Macaulay’s Method

Posted on 15/12/2011 by dougaj4

Following the last post on this topic: Continuous Beams With Cantilevers by Macaulay’s Method, and by popular demand, I have now updated the continuous beam and single span analysis functions to accept spring translational and moment restraints.  Also added is … Continue reading →

Posted in Beam Bending, Excel, Frame Analysis, Newton, UDFs, VBA | Tagged , , , , , | 36 Comments

Cambridge Digital Library

Posted on 13/12/2011 by dougaj4

Newton Papers Cambridge Digital Library Cambridge University Library is pleased to present the first items in its Foundations of Science collection: a selection from the Papers of Sir Isaac Newton. The Library holds the most important and substantial collection of … Continue reading →

Posted in Newton | Tagged , , , | 2 Comments

Continuous Beams With Cantilevers by Macaulay’s Method

Posted on 05/12/2011 by dougaj4

Edit 13 Apr 2014: See Continuous Beam Spreadsheet with Moving Load for the latest version, which is now called ConBeamU. I have updated the Macaulay spreadsheet (described here) to allow the analysis of continuous beams with cantilevers at one or … Continue reading →

Posted in Beam Bending, Excel, Frame Analysis, Newton, UDFs, VBA | Tagged , , , , , | 12 Comments