Tag Archives: Reinforced Concrete

ULS design of circular reinforced concrete columns

Posted on June 9, 2019 by

The RC Design Functions spreadsheet has been updated (to Version 8.04) with the addition of a CircU function for ULS design of circular reinforced concrete sections under combined bending and axial load.  The new version, including full open-source code, may … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , , , , , , , | Leave a comment

ULS Design Functions – update for AS 3600

Posted on May 28, 2019 by

The ULS Design Functions spreadsheet (last posted here) has been updated to the new Australian Standard for concrete structures; AS 3600-2018.  The new version can be downloaded from: ULS Design Functions.zip Note that the biaxial version included in the download … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , | 2 Comments

RC Design Functions 8_03

Posted on April 30, 2019 by

The RC Design Functions 8_03 spreadsheet is now available for free download from: RC Design Functions8.zip The main changes are: The NA layer check has been corrected for compression steel in tension The new AS 3600 crack width and curvature … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , | 9 Comments

More iterative solvers

Posted on October 28, 2018 by

Following the recent post on using Brent’s Method solvers on an array (Iterative solvers and arrays), here is another example with an engineering related problem.  The example is included in the xlScipy3 spreadsheet, which can be downloaded from: xlScipy3.zip The depth … Continue reading →

Posted in Arrays, Beam Bending, Concrete, Excel, Link to Python, Maths, Newton, NumPy and SciPy, UDFs, VBA, xlwings | Tagged , , , , , , , , | Leave a comment

Evaluating text with units and finding the neutral axis

Posted on January 7, 2018 by

A few weeks ago a comment asked for guidance on finding the moment capacity of a reinforced concrete section.  This post will look at finding the depth of the neutral axis (NA) in a rectangular section, with a single layer of … Continue reading →

Posted in Beam Bending, Concrete, Excel, Maths, Newton, UDFs, VBA | Tagged , , , , , , , , , , | 5 Comments

Composite Beam Spreadsheet Update 1.01

Posted on November 4, 2017 by

Following a comment here, I have modified the Composite Beam spreadsheet to correct the stage 1 stresses forces in the reinforcement as listed in Columns 6 and 7, when the tensile face is the top.  The output has also been … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , | Leave a comment

RCInteract and RC Design Functions 7.03

Posted on April 9, 2017 by

Since the previous post, I have updated the notes in the RC Design Functions spreadsheet to reflect the fact that with the recent update to the Bridge Design Code (AS 5100) the reinforced concrete strength design requirements for beam bending … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , , , , | 16 Comments