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Quadrilinear asymmetric curve - quad_asm Parameters?

Posted: 28 Oct 2020, 15:24
by humam2104
I want to input this curve:
https://i.imgur.com/7bDNBkp.png
As a (Quadrilinear asymmetric curve - quad_asm), but I'm getting an error or divergence each time no matter what I did.
So I want to make sure that my parameters are correct, here are the parameters I'm using to simulate the graph:
https://i.imgur.com/h91MzN4.png
The parameters are not explained in detail in the program, so more annotations on the graph in the Help menu would help

Re: Quadrilinear asymmetric curve - quad_asm Parameters?

Posted: 29 Oct 2020, 14:11
by z.gronti
Dear humam2104,

Please check the units that you use, e.g. the default units in SeismoStruct is m and kN, hence the dy(+) should be 0.0035 and not 3.5. The same for the other required displacement values.
What kind of error do you get?

Re: Quadrilinear asymmetric curve - quad_asm Parameters?

Posted: 31 Oct 2020, 09:57
by humam2104
Well, DECREASING the number of steps helped me. Increasing them only made the analysis fail at an earlier point

Re: Quadrilinear asymmetric curve - quad_asm Parameters?

Posted: 01 Nov 2020, 19:01
by seismosoft
Indeed, although it does not happen often, such behaviour has been observed in the past, it can happen.
Seismosoft Support