about hinge joint

[QI]

Dear silvia
can you tell me how define hinge joint of column-beam?
thank you !

[Haraldinho]

Either with an elasticBeamColumn element and two zeroLength elements at the ends or better with the beamWithHinges element.

For more information see the examples manual:
http://opensees.berkeley.edu/OpenSees/m ... nual/HTML/

or the user manual:
http://opensees.berkeley.edu/OpenSees/m ... index.html

-Harald

[QI]

thank you for your advice , Haraldinho!
so i still have some problem.
if i use beam with hinges element,how long the hinge length is?
on the other hand,if i use Zero-Length Elements,how should i define the element property.in the Zero Length Element Examples manual,i don't know the reason of define the property

(uniaxialMaterial ElasticPP 2 1050 0.02

uniaxialMaterial Elastic 3 -50

uniaxialMaterial Parallel 1 2 3
)