Column Reinforcing Coordinates 1

[dik]

Column Reinforcing Coordinates

I'm writing a reinforced concrete spreadsheet for the design of columns and am having difficulty coding the coordinates for location of reinforcing steel for the condition where the reinforcing is equally distributed to all four faces. Is there a relatively simple manner of doing this?

I've determined that the number of bars has to comply with:

MOD((N-4)/4) = 0,

The actual coding for the coords can be done, but is very cumbersome; is there a simple manner of doing this?

Dik

 

[IDS]

The attached file gives an "on-sheet" solution. It should be fairly easy to convert that to VBA, if that is what you want. I have only given it a very quick check, so please check thoroughly before using in action.

The formulas will work for up to 10 bars/face, but the chart X ranges are set to 4 bars to suite the example shown. That's because of Excel's annoying trick of automatically changing an XY graph into a line graph if finds any text in the X range, even if the text is "".

Other than that, it seem sto work OK.

Doug Jenkins
Interactive Design Services

http://newtonexcelbach.wordpress.com/

 

[dik]

Thanks... I'll take a gander at it tomorrow... have to use an office machine to open the excel file... my old version does't recognise the extension... I had no problem with opposite face bars or a circular cross section... but, to do equal distribution was extremely 'clunky'... I've been trying to avoid VBA and using excel only.

Thanks, Dik

 

[dik]

Excellent example... thank-you very much.

Dik

 

[johnbridge231]

The spreadsheet by IDS is excellent. Keep on the good work guys!

Analysis and Design of arbitrary cross sections
Reinforcement design to all major codes
Moment Curvature analysis

http://www.engissol.com/cross-section-analysis-design.html