Dear all,
In the STKO pre-processor, when defining a new Condition, under Model->Loads->Force, I see items such as "Face Force" that are not available in OpenSEES. How do they work exactly?
Thank you
Distributed Loads
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MassimoPetracca
- Posts: 37
- Joined: Wed Jul 24, 2019 11:10 am
Re: Distributed Loads
Dear Vicky,
You are right, objects such as FaceForce, EdgeForce, etc... do not have a direct counterpart in OpenSEES. They are STKO automations that simplify the way you can build your model.
For example, if you want to apply a distributed pressure of 10 F/L^2 on a curved shell, acting normal to its plane, in OpenSEES you would need to compute the equivalent nodal load vectors and write them in a load pattern using the load command.
In STKO, instead, you can use the FaceForce Condition, where you specify the distributed pressure vector in local coordinates (px = 0, py = 0, pz = 10). Then STKO will automatically compute the lumped nodal forces and will write them in the TCL file using the load command.
You are right, objects such as FaceForce, EdgeForce, etc... do not have a direct counterpart in OpenSEES. They are STKO automations that simplify the way you can build your model.
For example, if you want to apply a distributed pressure of 10 F/L^2 on a curved shell, acting normal to its plane, in OpenSEES you would need to compute the equivalent nodal load vectors and write them in a load pattern using the load command.
In STKO, instead, you can use the FaceForce Condition, where you specify the distributed pressure vector in local coordinates (px = 0, py = 0, pz = 10). Then STKO will automatically compute the lumped nodal forces and will write them in the TCL file using the load command.