how to get the capacity of a Zero-Length Element

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2015James
Posts: 31
Joined: Wed Dec 29, 2010 2:57 am
Location: hit

how to get the capacity of a Zero-Length Element

Post by 2015James »

I use a Zero-Length Element with LimitState materials in a model .
Shear LimitCurve and Axial LimitCurve are used in the model. I want to get the axial capacity of the Zero-Length Element during analysis.
which command should i used? Thanks and best wishes.
linguan118
Posts: 140
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Location: Hong Kong

Re: how to get the capacity of a Zero-Length Element

Post by linguan118 »

You mean the force of the zero-length element?
Research Assistant Professor, The Hong Kong Polytechnic University
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2015James
Posts: 31
Joined: Wed Dec 29, 2010 2:57 am
Location: hit

Re: how to get the capacity of a Zero-Length Element

Post by 2015James »

linguan118 wrote:
> You mean the force of the zero-length element?

I mean the capacity of the Axial limit curve, the Axial limit curve will change during dynamic analysis, so the axial capacity of the Zero-Length Element will change, I want to get the axial capacity during dynamic analysis.

another question is about the limit curve, I am new to this command, would you please explain the last parameter in the limitCurve command (eleRemove 0 ),just as following.
i can not find the parameter in the opensees command manual "http://opensees.berkeley.edu/wiki/index ... LimitCurve" Thank you

# define limit surface
# tag eleTag Fsw Kdeg Fres defType forType nodeI nodeJ dof perpDir delta eleRemove
limitCurve Axial $axialCurveTag $bcTag $Fsw $axialNegSlope $Pr 2 2 1 4 1 2 0.0 0
vesna
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Location: UC Berkeley

Re: how to get the capacity of a Zero-Length Element

Post by vesna »

I could not find a recorder for the axial capacity. You will have to record the forces in your element in order to acquire the capacity .

eleRemove is an option to remove the element. 0 is the default value and it means "do not remove the element". there are other options but are not fully implemented so I would recommend not to use them.
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