topic Re: Sliding Check in Robot Structural Analysis Forum

Sliding Check

Anonymous — Tue, 21 Nov 2017 15:03:14 GMT

Hi,

I am currently having a problem with sizing the foundation due to the sliding check. It looks like the sliding force value is compared with the value of force preventing sliding that is based purely on the applied vertical load from the structure.

Can you please explain if the foundation weight is taken into account in this check?

Thank you for your help.

Re: Sliding Check

Artur.Kosakowski — Tue, 21 Nov 2017 15:30:14 GMT

Hi Marta,

The calculation note shows what additional loads are included in addition to the forces from the 47 combinations taken from the model.

You can also run a test for only horizontal force in the support node load case.

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.

Re: Sliding Check

Anonymous — Tue, 21 Nov 2017 15:54:22 GMT

Hi Artur,

Thank you for your reply.

It looks like the weight of the soil and the foundation is shown in the note, but then it is neglected in further calculations and only the applied vertical load (the reaction in combination 47_ULS) is multiplied by the friction coefficient (280.14kN x 0.33 = 92.45kN).

Can you please advise me if I'm missing something out?

Marta

Re: Sliding Check

Artur.Kosakowski — Wed, 22 Nov 2017 11:41:41 GMT

Hi Marta,

Please check the value of the vertical reaction from this combination

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.

Re: Sliding Check

Anonymous — Thu, 23 Nov 2017 10:55:26 GMT

Artur,

Thank you for your help!

Everything is clear now - the uplift was the reason of such a reduction.