up or outward

As the name goes, shear connection is for resisting shear force only. It stops the two connected members from sliding up and down or back and forth. If two members are connected by a single bolt / pin, they can not move up and down but can move in circle ie rotate, ie the connection has no resistance to turning ie moment. If at this place we put two or more pins or nails, the members will neithe move nor rotate.more pins, bolts , welds more the capacity to resist this turning or angular movement. This is a moment connection. In the actual design of a shear connection the area of pin or bolt (in single or double shear) should be adequate to resists the force which is trying to take it apart. In design of moment connection the moment is transformed into a couple ( two forces at a distance) and the connection is designed ( bolts or welds) for this forces.

A Moment Connection in structural design is a connection joint between a beam and a column where the end of the beam is restrained from rotating, thus creating a rigid frame without the use of conventional cross-bracing. Standard, or "pinned" connections are usually bolted and/or welded through the beam web and allow the beam to "rotate" in the "Y" direction when the beam is loaded. A moment connection freezes, or locks up the top and bottom flanges of the beam, thus making it "rigid".

It should be an intimate moment between the kissers!

It's like another connection.

Moment of Inertia of a disk (I) = 1/2MR2

Moment of Inertia of a disk (I) = 1/4MR2