Reference point, restraint and loading

[shijun@hit.edu.cn]

Dear STKO team
The shear wall with boundary needs to be loaded. Is there a refrence Point A that can replace the Top Line X

2022-06-01_093500.jpg (72.08 KiB) Viewed 4478 times

? If it can be done, the vertical and horizontal force can be loaded on the Point A. How to establish the relationship between Point A and Line X in STKO?
The model file is here

simplified.zip

(138.15 KiB) Downloaded 286 times

.
Wait for your reply.

[STKO Team]

You can simply use a RigidLink on an interaction whose master is the central node, and the slaves are the shell edges and beam top nodes.

However, there are some mistakes in the model that I tried to fix:

• I added (with merge) a central vertical cut in the wall, otherwise it cannot be meshed with a structured all-quad mesh
• The GJ parameter of beams is 0, make it a reasonable value, otherwise the beam can be singular in torsion
• The layout of your section is non-symmetric. While it is fine in 2D analyses, it can create problems in shells. To make it symmetric you can use 1 layer of vertical rebars in the middle, and 2 layers (one before and one after) with half their real thickness. Otherwise your model will bend out-of-plane due to this non-symmetry

  

  wall_1.png (127.94 KiB) Viewed 4471 times

Here's the file. Try to make the shell section symmetric to avoid the out of plane bending

simplified.zip

(143.09 KiB) Downloaded 286 times

[shijun@hit.edu.cn]

Thank you for your reply.

[STKO Team]

You're welcome