Why am i having different footing dimensions in staad pro foundation

RE: Why am i having different footing dimensions in staad pro foundation

Ajay Shukla — Thu, 26 Mar 2020 08:54:44 GMT

I am following this thread and wondered if my issue could be addressed with your explanation.But,i woud like to request sir to kindly see if mycommunities.bentley.com/.../2548.TestG4-Foundation.sfa issue for SFA foundation design could be resolved with any changes.The problem encountered is that despite the isolated or combined footing design,the results overlap and sizing is overly huge for a small model.Kindly,shared the foundation file in IS code design.Many thanks in advance.

RE: Why am i having different footing dimensions in staad pro foundation

Kris Sathia — Wed, 25 Mar 2020 08:10:00 GMT

From the screenshot you attached, we see that you are running version 9.1.0.14.

The latest version of SFA is Build 9.2.0.34. In releases prior to this, one of the checks performed while determining the minimum footing size was that it has to be large enough to accommodate the development length required for flexural reinforcement without bends or hooks. That value was also overestimated to some extent. In the version you are running, this criterion is causing the footing to be larger than the 900 mm minimum you have specified.

This check has been removed in Build 9.2.0.34. This build gets automatically installed if you install the current version of STAAD.Pro. However, you can also download and install it independent of STAAD.Pro from the Bentley software downloads site.

RE: Why am i having different footing dimensions in staad pro foundation

hakeem olokunola — Tue, 24 Mar 2020 14:48:46 GMT

communities.bentley.com/.../bs-code.sfa

communities.bentley.com/.../US-CODE.sfa

RE: Why am i having different footing dimensions in staad pro foundation

Kris Sathia — Tue, 24 Mar 2020 12:45:09 GMT

The file we need is the one with the SFA extension.

RE: Why am i having different footing dimensions in staad pro foundation

hakeem olokunola — Tue, 24 Mar 2020 11:06:30 GMT

communities.bentley.com/.../BS-CODE.xml

communities.bentley.com/.../US-CODE.xml

RE: Why am i having different footing dimensions in staad pro foundation

Kris Sathia — Tue, 24 Mar 2020 09:14:09 GMT

It could be that the minimum development length required for the flexural reinforcement is governing the footing dimensions.

Can you attach the SFA file?