Category Archives: Newton

Section Properties for Rotated Shapes

Posted on 06/08/2020 by dougaj4

I have just posted an update to my section properties spreadsheet, last discussed at: Using Section Properties- Group The new version can be downloaded from: Section Properties07-Group.zip The main sheet provides section properties for a wide variety of defined shapes: This … Continue reading →

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

Reinforced Concrete Design for Circular Sections to Eurocode 2

Posted on 26/07/2020 by dougaj4

As mentioned in the previous post, the Reinforced Concrete Design Functions spreadsheet includes a function for ULS analysis of circular sections, using either a rectangular  or a parabolic-linear stress block.  A new CircuPF function has now been added, for codes … Continue reading →

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

ULS Design Functions and EurocodeApplied

Posted on 12/07/2020 by dougaj4

The ULS Design Functions spreadsheet (last updated here) has had another update (2.09) to fix a problem when bars in different layers had different E values.  The new version assigns the correct E and strain at yield to each layer. … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , | 8 Comments

Numerical integration with on-sheet calculations

Posted on 08/07/2020 by dougaj4

Following a comment here I have prepared a spreadsheet that works through the Tanh-Sinh Quadrature process with on-sheet calculations.  For that purpose Graeme Dennes has provided a simplified version of the code: QUAD_RODRIGUEZ_TANH_SINH for finite intervals. Translated from HP RPN … Continue reading →

Posted in Excel, Maths, Newton, Numerical integration, UDFs, VBA | Tagged , , , , , | 10 Comments

Building dances to an earthquake’s beat

Posted on 28/05/2020 by dougaj4

Adam Pascale from the Seismology Research Centre recently shared this animation (click on controls bottom right for High Quality and Full Screen views): … it’s from a building in the Philippines about 130km (hypocentral distance) from a magnitude 6.1 earthquake … Continue reading →

Posted in Animation, Computing - general, Newton | Tagged , | Leave a comment