Supports 2

[pontoon]

I am trying to analyse a test bed for a winch. However I am new to Staad and having trouble finding a way to tell it that my rectangular frame is sitting on the floor. I tried 4 supports on the corners but it is giving exaggerated load deflection due to the point supports rather than the spread load.

If anyone can point me at how to do this, or recommend somewhere to find more newbies guides. I am finding most seem to be building related and it doesn't seem to translate exactly to what i'm doing.

Thanks in advance.

 

[SethGuthrie]

For mat or raft foundation, users typically place the structure on compression-only soring supports at most every node. If you need more nodes, you can always segment the members. A structure setting on the floor is similar I think.

 

[pontoon]

This is where I fall down, translating words from engineering speak to something I understand . What is a "soring" support?

I have found the foundation support window, and I am trying to work out what I need from it.
I assume the Plate Mat selection is to be connected to a plate. I assume Footing is meant to be assinged to a node? ie the cross section of a "foot" to a point. However I'm not so sure I understand Elastic.
Would the "Footing" selection be right and assigning it to one node? Or would the plate Mat be the correct one, creating one plate for the whole base? or do I have to create a plate for each section that sits on the floor.

As it is the ground supporting a structure, I assume the direction is Y only? Y being vertical?

Apologies for my lack of knowledge and understanding, I really have tried searching, but keep getting the same tutorial document, though I have managed to answer a few of my queries with some you-tube tutorials.

 

[TonyD71502]

I believe he meant shoring support.

 

[SethGuthrie]

I meant spring, o and p next to eachother on the keyboard.