These connections are not generally regarded as Moment Resisting, but due to their configuration they will offer some resistance against rotation. The determining factor lies with the Rotation Capacity of the joint components.

(For more about the rotation capacity go to Moment Connections)

The following examples illustrate some of the common connection types:

 Fig. 1 shows two options for the simple end-plate connection. Option A indicates a plate shop-welded to the column, extending beyond the column walls to allow for through bolts. The incoming beam has a matching end plate welded to the end. Option B replaces the column plate with angle cleats which are shop-welded to outside faces of the column. Fastening the cleats in this manner will offer additional moment resistance which must be taken into account in the design. The incoming beam has matching cleats which may be either shop-welded or bolted. The beam end may be left open - which may be useful when galvanizing or closed with a closure plate.

If the beam is to be galvanized after fabrication, then vent holes must be provided to allow the ingress of the zinc and expulsion of the gasses.

Structural Detailer-Beam to Column_1

Fig. 2 illustrates a similar connection type with Option A indicating an end-plate and Option B showing angle cleats. These options provide for the use of Blind Fixings ensuring a neat, compact connection, but they do require a high level of fabrication accuracy.

(For more information on Blind Fixings go to Fastener Options)

Structural Detailer-Beam to Column_2

Beam-to-Column connections using circular hollow sections is slightly more complex. The most common, as shown in Fig. 3 is to shop-weld a Tee extension to the column protruding far enough to allow for the tightening of the bolts. The Tee may be fitted with a flange or full plate - the flange plate allowing for the extension to be open, while the full plate will be closed. The same considerations regarding galvanizing apply as mentioned earlier.

Fig. 4 is fabricated from plates welded to the column - the position of the stiffener plates will be determined by the relative diameters of the column and beam. The end-plates may be either square (as shown) or circular.

The bolt-boles in circular or square flanges are measured according to the PCD (Pitch Circle Diameter) with the clearance dimension (e2) measured from the circumference of the profile.

Structural Detailer-Beam to Column_3

Fig. 5 Probably represents, the most common arrangement which is to connect an open section beam to the hollow section column. Option A shows two angle cleats shop-welded to the column, whole Option B allows for an end-plate. The incoming beam is then fitted with a Standard End-Plate - Note that the end plate illustrated as a Partial End-Plate - which may be replaced with either an Extended or Full option.

For more information on end-plates go to Welded End Plates

These connections are straightforward to fabricate and erect, both using Through Bolts.

(For more information on through bolts go to Fastener Options)

Structural Detailer-Beam to Column_4

Fig. 6 Shows a typical end-plate connection using Blind Fixings - as with Fig. 5, it indicates a Partial End-Plate.

(For more information on Blind Fixings go to Fastener Options)

Structural Detailer-Beam to Beam_6a
Structural Detailer-Beam to Column_5

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