NL Link elements - Design/Check
NL Link elements - Design/Check
(OP)
Hi,
I'm hoping to get SAP to highlight the failing NLLink elements in my structure). I understand that the design function is able to check for and highlight the failing steel and concrete elements.
I made a simple frame, with Linear Link element on diagonal, I also made the same frame with Damper, MultiLinear Plastic and MultiLinear elastic Link element. I assigned the force at top left joint. I think, when I assign a big force, the Link element should break, but program doesn't give me the note that Link element is failed.
I'm just hoping to find out if there is a way of checking for failing Link elements.
I have done it in SAP 2000 version 14.0
Thanks in advance!
I'm hoping to get SAP to highlight the failing NLLink elements in my structure). I understand that the design function is able to check for and highlight the failing steel and concrete elements.
I made a simple frame, with Linear Link element on diagonal, I also made the same frame with Damper, MultiLinear Plastic and MultiLinear elastic Link element. I assigned the force at top left joint. I think, when I assign a big force, the Link element should break, but program doesn't give me the note that Link element is failed.
I'm just hoping to find out if there is a way of checking for failing Link elements.
I have done it in SAP 2000 version 14.0
Thanks in advance!





RE: NL Link elements - Design/Check
However, there is an element in SAP that can do what you are talking about, and that's the "hinge" element. With the hinge element (to add go to Insert - Frame - Hinges -- I think) you define the backbone curve similar to how it is described in ASCE 41 (and other FEMA documents). In SAP I believe this is active for both pushover analysis, and time history analysis. In ETABS it was only active for pushover analysis so I had to use the link element.
Not sure if that helps or not...
RE: NL Link elements - Design/Check
I will try with a hinge element.
Are you totaly sure that Link element can't have failure. Because I think when I give him force-displacment dependent i give him maximum force that he can bare. Or there is another way of giving the maximum force?
RE: NL Link elements - Design/Check
RE: NL Link elements - Design/Check
You can see my model in attachment (first message).