Ultimate axial load and moment interaction diagrams for RC walls

[n3jc]

Hi,

I'm searching for some tools to help me with designing of RC walls according to eurocode EC8.
I need a tool to help me determine reinforcement based on the ultimate axial load and moment(interaction diagrams) for RC walls.
Do you guys know for any free software or spreadsheet for this?
Thanks.

Regards


something like this:

 

[Trenno]

What software are you using to generate the analysis results?

 

[n3jc]

Tower 6

 

[kostast88]

Any software with section designer would do it (SAP2000,ETABS,MIDAS,etc)

None of them for free. That section is way too complicated to find it for free.

EDIT: I am not aware of a software called "Tower 6"

 

[KootK]

S-Concrete may be worthy of consideration: Link

 

[Celt83]

take a spin through this post: Link

Free options for a biaxial general cross section analysis (may or may not be appropriate for a wall, see thread linked above):
User Denial has a spreadsheet on their website: Link
User IDS also has a spreadsheet on their website: Link

My Personal Open Source Structural Applications:

https://github.com/buddyd16/Structural-Engineering

Open Source Structural GitHub Group:

https://github.com/open-struct-engineer

 

[n3jc]

Thank you for help. Will look into it.

 

[IDS]

None of them for free. That section is way too complicated to find it for free.

I'm not sure why that section is seen as being particularly complicated, but my free spreadsheets will certainly produce an interaction diagram for it to Eurocode 2.

A zip file can be downloaded from the link provided by Celt83, or from:

https://newtonexcelbach.com/2019/11/21/biaxial-bending-update/

which looks at rectangular sections with axial load + biaxial bending to different codes.

There are two versions:
ULS Design Functions.xlsb does bending about one axis with rectangular or parabolic-linear stress blocks.
ULS Design Functions-biax.xlsb does biaxial bending but with rectangular stress block only.

A version of the biaxial bending sheet with parabolic-linear stress blocks should be available "real soon now".

The zip file can be downloaded directly from:

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

Doug Jenkins
Interactive Design Services

http://newtonexcelbach.wordpress.com/

 

[IDS]

n3jc - I did a quick check of the section as shown using ULS Design Functions.xlsb. The maximum bending capacity was fairly close, but the shape of the diagram was quite different, especially at high axial loads.

Could you confirm:
Which stress block you are using?
Any factors from a National Annex, or any other non-standard factors?
What does MA 500/600 indicate?



Doug Jenkins
Interactive Design Services

http://newtonexcelbach.wordpress.com/

 

[n3jc]

@IDS

thank you for reply.

Can you send me ULS Design Functions.xlsb file with inputs of my OP.
I think it'll be easier that way.

Regards.

 

[engineering_patrol]

You can try this tool which is among the best ones in order to construct the interaction diagramm of any cross section.
See a related example here:

https://www.engissol.com/interactio...ion-analysis-design-software-application.html

and here:

https://www.youtube.com/watch?v=XaG...title&ab_channel=EngineeringSoftwareSolutions

 

[IDS]

n3jc - if you answer my questions and give me an e-mail address I'll send the file.


Doug Jenkins
Interactive Design Services

http://newtonexcelbach.wordpress.com/

 

[n3jc]

@IDS

Which stress block you are using?

I'm not really sure since it's a research/university software. I'm pretty sure it's rectangular stress block.

Any factors from a National Annex, or any other non-standard factors?

Not that I'm aware of. Software is based on Eurocode standards.

What does MA 500/600 indicate?

It stands for MESH REINFORCEMENT, 500 as 500 MPa - reinf. yield

my email: gmd255@gmail.com

 

[IDS]

Thanks n3jc,

I have e-mailed a zip file with two spreadsheets, and also attached to this message.

See typical results below for bending in the plane of the wall:

Doug Jenkins
Interactive Design Services

http://newtonexcelbach.wordpress.com/

 

[n3jc]

I got your email. Will check spreadsheets.
I appreciate it, that was helpful.

Regards.