Connecting master point to several points [SOLVED]

Help Grasshopper
1

Hi!

Generally, there seems to be no way of connecting one master point to a curve.
I solve it by creating many points along a curve and creating many point-point connections instead.

But to my problem:

Application of a load in the master node (in the center) yields the following error:

image
image1621×654 71.5 KB

Application of boundary conditions seem to work fine.

2

Hi @Poja! :wave:

You can use Point/Line/Surface connections to connect two structural elements, but you cannot use them to connect a load object (such as a point load) to a structural element. If you want to do this, I’d suggest you use the Fictitious bar. I’ve attached a simple FEM-Design example to demonstrate the difference.

connection-sample.zip (821.8 KB)

  • First slab: I used Point Connections, it doesn’t work with loads.
  • Second slab: I used Fictitious bars, and I connected them to the edge of the hole.
  • Third slab: Similar to the second, but I defined Fictitious bars on the edge of the hole (4 fict. bars with arc geometry).

You can use the second or the third method, depending on the structure and its connections you want to model.

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