shell stresses interpretation 1

[FerLinares]

when i design a shear wall and I model it like a shell in the final efforts appears a kind of colors, how shoud I find the design force??
or how I should find the resulting force that push on the wall???
which can be equal o similar as if the element would have been modeled as frame

 

[axelpop]

I think you can follow the design force, by recording the base shear force of your wall.

 

[shakildor]

Dear Fernilares,
When u use shell element, u will have mainly six stresss/forces, whose, as you have said, distribution can be seen in coulors.

To understand those colours, you have to understand the nature of shell element. Its four noded element with six degree freedom at each node.

Now if u are designing as slab, where out of plane bending and shear are major, then you have to look for M11 and M22 and F23 and F13.

If you are designing as vertical element, where in plane forces (or membrane action)are major, then you have to look for F11 and F22
To understand about all these M..s an F..s you can look at HELP in SAP200 under Shell Element


Shakil