Category Archives: Beam Bending

Buckling of rings and arches

Posted on 01/01/2011 by dougaj4

In 2007 I wrote a paper on buckling of confined steel tunnel liners for the ANZ Geomechanics Conference in Brisbane, and in the course of that I noticed that the calculated buckling load of an unconstrained pipe subject to uniform radial load was significantly … Continue reading →

Posted in Arch structures, Beam Bending, Excel, Newton, VBA | Tagged , , , | 15 Comments

ULS design of reinforced concrete, AS, ACI and European codes

Posted on 21/12/2010 by dougaj4

The previous post in this series compared the results of current and previous Australian Standards, and the ACI 318 code, for the ultimate bending capacity of a rectangular reinforced concrete section, subject to combined bending and axial load.  I have now extended … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs | Tagged , , , , , , , , | 1 Comment

ULS design of reinforced concrete to AS 3600 and ACI 318

Posted on 05/12/2010 by dougaj4

Following on from the previous post I have modified my RC Design Functions spreadsheet to incorporate the US ACI 318 design code requirements, as well as the recent revision to the Australian code, AS 3600.  The revised spreadsheet will be uploaded … Continue reading →

Posted in Beam Bending, Concrete, Newton | Tagged , , , , , | 3 Comments

AS 3600 (Concrete Structures Code) Amendment 1

Posted on 29/11/2010 by dougaj4

The first amendment to the current (2009) version of the Australian Standard for Concrete Structures (AS 3600) was recently released for free download.  SAI Global have not seen fit to notify purchasers of the standard of this amendment, but it … Continue reading →

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Update to Beam1 and Beam2

Posted on 16/10/2010 by dougaj4

It has just been pointed out that the single span beam spreadsheet presented at Frame Analysis with Excel 1 does not work for a propped cantilever.  The same applies to the spreadsheet for single span sloping beams at Frame Analysis with … Continue reading →

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