A pinned connection is typically described as which of the following?

• A. A pinned connection is typically described as a single point connection using screws, nails, bolts, rivets, gusset plates, joist hangers
• B. Multiple, continuous welds
• C. Bonded together with bead welds and glue
• D. A gravity-based joint

Answer: (A)

A pinned connection is a hinge-like joint that resists translation but allows rotation, typically formed by a single point connection using mechanical fasteners. The description of using screws, nails, bolts, rivets, gusset plates, or joist hangers captures how a pin transfers loads at a precise point without creating a rigid restraint to rotation. This is different from welded or bonded joints, which are designed to resist rotation and act as rigid connections. It’s also not defined by gravity alone, which doesn’t specify how the connection itself handles rotation or transfer of forces.