Circular Column Interaction Diagram. 4

• Mar 15, 2023

1
• #2

Celt83

Structural

Sep 4, 2007

2,088

dik: IDS has a sheet on their site, think this is the newer one.

I made this one a bit ago: Link
it uses macros so you'll need to right click and unprotect the file in windows before opening it. If you have an questions happy to answer as best as I can.

 

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• Mar 15, 2023

• Thread starter
• #3

dik

Structural

Apr 13, 2001

26,064

Thanks, Celt... I'll take a gander...

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

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• Mar 15, 2023

1
• #4

canwesteng

Structural

May 12, 2014

1,705

CAC gives these away for free now

https://cement.ca/app/uploads/2022/01/CDH-4E-CH7-ADA-PDF-1P-AUG2016.pdf

 

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• Mar 15, 2023

2
• #5

IDS

Civil/Environmental

Jun 1, 2001

3,290

Thanks for posting the link Celt.

For latest downloads from the blog click on the Downloads tab at the top of the page. That has a sortable list of everything available for download, and links to the latest blog articles.

Latest versions for RC design spreadsheets are:

https://interactiveds.com.au/software/RC design functions9.zip

https://interactiveds.com.au/software/ULS Design Functions.zip

The RC Design Functions spreadsheet has functions CIRCE and CIRCU for elastic and ultimate limit state analysis of circular sections.

The ULS Design Functions spreadsheet does ULS analysis for any cross section divided into trapezoidal layers. There is sample input for a circular section, but the functions in the other spreadsheet have much more convenient input.

Both spreadsheets work for ACI 318, Australian codes, and Eurocode 2, and RC Design Functions also does AASHTO.

They don't do the Canadian codes at the moment. Are they available for free download?


Doug Jenkins
Interactive Design Services

http://newtonexcelbach.wordpress.com/

 

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• Mar 15, 2023

• Thread starter
• #6

dik

Structural

Apr 13, 2001

26,064

This is a construct from about 20 or more years back... you might find interesting... change the number of bars... A simple logic construct and add the formula at the end...

I've done a couple of programs where my source code is in excess of a megabyte... I used to love programming both software and at the hardware level... in half a dozen different languages. Did RPN before HP came out with it (Forth).

[URL unfurl="true"]https://res.cloudinary.com/engineering-com/raw/upload/v1678923036/tips/Celt_jws9va.xls[/url]

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

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• Mar 15, 2023

• Thread starter
• #7

dik

Structural

Apr 13, 2001

26,064

Thanks IDS... I'll take a gander...

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

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• Mar 15, 2023

• Thread starter
• #8

dik

Structural

Apr 13, 2001

26,064

Thanks Canwest... looking to program it...

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

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• Mar 15, 2023

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• #9

dik

Structural

Apr 13, 2001

26,064

Does using the parabolic distribution rather the the Whitney distribution give more correct answers for circular sections?

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

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• Mar 15, 2023

• #10

IDS

Civil/Environmental

Jun 1, 2001

3,290

dik said:

Does using the parabolic distribution rather the the Whitney distribution give more correct answers for circular sections?

Click to expand...

Yes, see the link posted by Celt for more details:

https://newtonexcelbach.com/2019/06/09/uls-design-of-circular-reinforced-concrete-columns/

Doug Jenkins
Interactive Design Services

http://newtonexcelbach.wordpress.com/

 

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• Mar 15, 2023

• Thread starter
• #11

dik

Structural

Apr 13, 2001

26,064

Thanks IDS... it's overkill for what I need, but it's nice to program it... Canwest's charts are more than adequate for just design...

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

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• Mar 16, 2023

• #12

IDS

Civil/Environmental

Jun 1, 2001

3,290

dik - entering a few numbers to plot an interaction curve is at least as quick as looking up the curve in a book, and allows you to plot all the available design data on the chart, and see instantly if anywhere is outside the capacity line.

But each to their own


Doug Jenkins
Interactive Design Services

http://newtonexcelbach.wordpress.com/

 

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• Mar 16, 2023

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• #13

dik

Structural

Apr 13, 2001

26,064

Doug... this is a 'one off' item... efficiency is not an issue, and it may be a while before I get to use it again... but I'd still write the program... I just like a little coding... You don't have to sell me on the elegance of a nice program. Just looking at the one that Celt did... wow...

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

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• Mar 16, 2023

• #14

Celt83

Structural

Sep 4, 2007

2,088

Dik:
My sheet uses on sheet computations and relies on vba for the numerical root finding which is why the p-m curve generation can take considerable time, each iteration requires all of the on sheet formulas to recompute.

Denial and IDS each have much more elegant solutions to the biaxial problem.

 

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• Mar 16, 2023

• Thread starter
• #15

dik

Structural

Apr 13, 2001

26,064

That's why I used Assembly in the days of the 8088... <G>

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

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• Mar 16, 2023

• #16

Denial

Structural

Jun 3, 2003

925

Thanks for the generous comment, Celt.[&nbsp;] Particularly appreciated from someone of your calibre.

_{[&nbsp;]—————————————————————————————————}
^{Engineering mathematician/analyst.[&nbsp;] See my profile for more details.}

 

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