Is it Possible to Design a K Type (InvV followed by a V) Eccentric Braced Moment Frame in ETABS 15?
Is it Possible to Design a K Type (InvV followed by a V) Eccentric Braced Moment Frame in ETABS 15?
(OP)
Hello everybody
I want to design an eccentric braced moment resisting frame. The frame is 2D with SMRF+EBF as frame type. The brace geometry looks like this (InvV followed by a V, It was proposed by Engelhardt and Popov):

I've designed it 2 times. First time I set the "Frame Type" of all elements except braces to SMF to check for the SMF required controls and set the "Frame Type" of braces to EBF (using View/Revise Overwrites). Second time I set the "Frame Type" of beams and columns of braced bays to EBF and all other elements to SMF. I've used this method to design SMF with "Inverted V-EBF" bracing and it works.
So I've used the same method to seismic design the frame but the results don't seem right. For example the link rotation checks don't show up in the beam results (obviously I mean the result's of beams which have a link).
Does ETABS 15 have the capability to seismic design this 2D frame (with this geometry of bracing) correctly? or should I change/tweak my method for this kind of brace.
I want to design an eccentric braced moment resisting frame. The frame is 2D with SMRF+EBF as frame type. The brace geometry looks like this (InvV followed by a V, It was proposed by Engelhardt and Popov):

I've designed it 2 times. First time I set the "Frame Type" of all elements except braces to SMF to check for the SMF required controls and set the "Frame Type" of braces to EBF (using View/Revise Overwrites). Second time I set the "Frame Type" of beams and columns of braced bays to EBF and all other elements to SMF. I've used this method to design SMF with "Inverted V-EBF" bracing and it works.
So I've used the same method to seismic design the frame but the results don't seem right. For example the link rotation checks don't show up in the beam results (obviously I mean the result's of beams which have a link).
Does ETABS 15 have the capability to seismic design this 2D frame (with this geometry of bracing) correctly? or should I change/tweak my method for this kind of brace.




