How to calculate FEMA hinge parameters?
Question:
Hi,
Answer:
Hi,

Regards,
MIDAS TECH SUPPORT
Hi,
Do you have more information on how FEMA hinge values on Civil? manual for example? below you can see about 3.99 rad of DY rotation, it looks a lot, how is it calculated? and how to calculate point C?
thanks
regards
Answer:
Hi,
I think you are asking how CP is calculated for the FEMA-type hinge.
FEMA specifies 0.02 of PLASTIC ROTATION for CP as shown below.


In Civil, the hinge rotation is described as D/DY ( = total rotation / Yield Rotation).
Total rotation = Yield rotation + plastic rotation.
Yield Rotation = 3.994e-5
Plastic Rotation for CP = 0.02
Therefore, CP = (3.994e-5 + 0.02)/3.994e-5 = 501.7
We can see the exact value of DY by selecting "User Input".
Also, we can give user-defined values by selecting the "User-input"
Regards,
MIDAS TECH SUPPORT
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