Confinement in Rocking Walls

[ssharma11]

Hello,

I am trying to simulate Hybrid Post-Tensioned Rocking Walls in SeismoStruct. To simulate uplift at the base of the wall, i use zero tensile strength in concrete and use concrete only section to a certain depth. The concrete only section is simply 'RCRWS' section with no longitudinal reinforcement.

While defining the wall section RCRWS, i have provided transverse reinforcement so that the boundary element exhibits confined concrete behavior. However, during simulation i found that the bottom panel (i.e the concrete only section) behaves as unconfined concrete. Could this be due to lack of longitudinal reinforcement? Could you please suggest me a way to overcome this issue and achieve confined concrete behavior at boundary elements as well.

I also tried manually inputting edge confinement factor, but that too did not help. Thank you.

Regards,

Sumedh

[seismosoft]

Indeed, according to the confinement model both longitudinal and transverse are required to achieve confinement.
Note however that in SeismoStruct user'defined values can also introduced to the confinement factors.
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