There are two typologies, the normal one and the extended one.
NORMAL (c)
Normal type is applied when there is no vertical bracing. The following 5 su-types are available, both for the connection to column web and to column flange:
- Simple fin plate
- Stiffened fin plate
- Welded
- End plate
- Seat
The normal FIN plate (cf1), without stiffener, can also be applied when:
- The column is a rectangular or circular tube, or a I or H welded cross-section.
- The beam is a I or H welded cross-section, a T or a C
The connection is available both to web and to flange.
The type with stiffener cF1 is applicable to columns I or H rolled, with beams I or H rolled.
The welded type (cW1) is as in the following picture.
The end-plate type (cE1), is as in the following picture.
The seated connection cS1 is as in the following picture (to flange):
EXTENDED (X)
The extended beam.column joints are applied if and only if a vertical bracing diagonal exists (or two). The reason is to provide a sufficient room to the horizontal welding of the gusset plate (FIN plate extended connections) or of the cross-section trunk (joints using bolted splice).
The two main types are: FIN and END PLATE.
In the previous image, an extended FIN hinged connection is shown (XF1).
In the next image, it is instead shown an extended END PLATE hinged connection (XE1).
