Pushover static analysis error

STKO Team
Posts: 325
Joined: Tue Oct 29, 2019 8:45 am

Re: Pushover static analysis error

Post by STKO Team » Fri Apr 10, 2020 5:27 pm

Ok, so in this case you need to draw the abutment as a wire (1 geometry) and the deck as a wire(1 geometry), then you use zeroLength elements to connect them through an interaction.

To create the interaction more easily, you can draw the deck geometry and the 2 abutment geometries with a finite distance, so it is easy to create the interaction between them (as you did in the drawing).

Then you can move the 2 abutments close to the deck (at a 0 distance)

hr_park
Posts: 20
Joined: Tue Mar 31, 2020 7:44 am

Re: Pushover static analysis error

Post by hr_park » Sat Apr 11, 2020 2:35 am

Dear STKO Team

THANK YOU SO MUCH !!

Ananlysis is successfully resolved and seisimic analysis is also running well!
So sorry to bother you so far and again, thank you for you sincere advise .
Wish you alL the best :)

STKO Team
Posts: 325
Joined: Tue Oct 29, 2019 8:45 am

Re: Pushover static analysis error

Post by STKO Team » Tue Apr 14, 2020 11:13 am

You're welcome.
If you need any help, don't hesitate to contact us

ankurjain1992
Posts: 38
Joined: Mon Aug 03, 2020 5:38 pm

Re: Pushover static analysis error

Post by ankurjain1992 » Sat Aug 22, 2020 7:04 pm

STKO Team wrote:
Fri Apr 10, 2020 2:10 pm
Your model is still singular, you see it from the error (some elements on the diagonal of the stiffness matrix is 0).

This is because you still have disconnected geometries. Same as I explained before, If you have 2 lines in 2 different geometries, even if one of their nodes share the same position in space, they will still be disconnected (4 nodes, 2 elements). Instead if you want 3 nodes and 2 elments (i.e. one node shared by both element) you should create 1 polyline with 2 lines, instead of 2 separated lines.

Here is an axample of how to convert some separated lines in your model, into a sigle WIRE (in CAD a wire is a polyline).

These lines are independent geometries, even if their end nodes share the same location, they are separated nodes:
disc_01.png


You can select them all, and use the "Make Wire" command (works only for lines) or the more generale "Merge" command (works for everything):
disc_02.png


Now the previously selected geometries will desappear, and you will see a new "merged" geometry. This new geometry is the same as the input ones. The main difference is that now all the nodes that were sharing the same position, are now actually a single entity, thuse shared by multiple lines:
disc_03.png
Sir kindly post this .scd file here...

Clarabella
Posts: 33
Joined: Wed Jul 08, 2020 3:50 pm

Re: Pushover static analysis error

Post by Clarabella » Tue Aug 25, 2020 1:41 pm

Dear user,
your request is not clear, what do you need?
Regards

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