About connecting frames to shells

[Danny Nguyen]

Hi bros,
When searching in CSI wiki

https://wiki.csiamerica.com/display/kb/Connecting+frame,+shell,+and+solid+elements

, i have a trouble in understanding the meaning of the following sentence (the underline in the attachment). I am not good at English and this sentence is not along with illustration. This make me confuse. Please help me to explain this sentence:
"when the frame is normal to the 1-2 local plane of the shell, model a small frame object within the plane of the shell, and release the moment at the far end of the frame object".
Anyone has examples or illustration figure?
Thx bros.

 

[JasonMcKee71]

This is a simplified technique to account for the actual stiffness of the connection between shells and frames.

Jason McKee
proud R&D Manager of
Cross Section Analysis & Design
Software for the structural design of cross sections
Moment Curvature Analysis
Interaction Diagrams
Reinforcement Design etc.