A member end cut is a combination of a web cut and a flange cut. It is placed by using Place Member Assembly Connection or Free End Cut at a frame connection or Place Member Generic Assembly Connection in the Structural Detailing task.
Multiple end cut symbols are available through each command. When the end cut is created by Place Member Assembly Connection or Free End Cut , its type is defined by the assembly connection properties. When created by Place Member Generic Assembly Connection , the type is selected by the end cut properties.
Web and Flange Penetrations
Web cuts and flange cuts can be penetrated or non-penetrated. If the bounding axis is more orthogonal to the web than the flange, the web is penetrated and the flange is non-penetrated:
If the bounding axis is more orthogonal to the flange than the flange, the flange is penetrated and the web is non-penetrated:
Web cut symbols are always drawn with the top of the web above, the bottom of the web below, the bounded member to the right, and the bounding member to the left.
1 - Top of web
2 - Bottom of web
3 - Bounded member
4 - Bounding member
Flange cut symbols are always drawn with the left flange above and the right flange below, and the bounded part to the right and the bounding part to the left.
Edges and Faces
Because the bounding member can have any combination of rotation and reflection relative to the bounded member, referring to the web and flange of the bounding member can be confusing. Face, top edge, and bottom edge are used instead for the bounding member.
A face is a surface that represents a broad area of the bounding member whose surface normal is pointing mostly toward the bounding part. It can be a surface of the web or flange.
An edge is a narrower surface that represents the thickness of the bounding member’s web or flange. It is only considered an edge if the surface normal is pointing mostly toward the bounding part. It can be a surface of the web or flange, that is, the web thickness or flange thickness. Top edge refers to the bounding edge closest to the top of the bounded member, not the top portion of the bounding member. Bottom edge refers to the bounding edge closest to the bottom of the bounded member, not the bottom portion of the bounding member.
The following examples show how the web and flanges of the bounding member translate to face and edge as the member is rotated. As described previously, the bounded part is to the right with the top above and the bottom below.
1 - Top flange
2 - Web
3 - Bottom flange
4 - Top edge
5 - Face
6 - Bottom edge
Reflection is not shown.
Penetrated end cuts follow multiple surfaces of the bounding member and contain up to three individual cuts: a center cut, a top cut, and a bottom cut. The individual cuts are combined to form composite cuts, as shown below.
1 - Top cut: Inside hook flange relief
2 - Center cut
3 - Bottom cut: Square flange relief web
A center cut is always applied. If needed, a top cut is applied to provide additional shape to the top, web-penetrated region or the left, flange-penetrated region of the member. A bottom cut can also be applied to provide additional shape to the bottom, web-penetrated region or the right, flange-penetrated region of the member.
Non-penetrated end cuts consist of a single cut with one bounding surface.