Which outcome is achieved by ensuring continuity across connections?

Which outcome is achieved by ensuring continuity across connections?

• A. Continuity primarily supports moment transfer, improving stiffness and ductility.
• B. Continuity prevents any deformation.
• C. Continuity only affects exterior aesthetics.
• D. Continuity makes connections heavier.

Answer: (A)

Continuity across connections means the joints transfer bending moments and shear so the members act as a single, continuous frame rather than independent pieces. When connections carry these forces effectively, the structure gains stiffness, resisting lateral loads more strongly and reducing unwanted deformations. At the same time, the frame can develop plastic hinges in a controlled way, improving ductility and energy dissipation during events like earthquakes or wind loads. That combination—moment transfer plus higher stiffness and ductility—is the practical benefit of continuity. It doesn’t imply that deformation will be completely prevented, since all structures deform under load. It isn’t about exterior appearance, and it doesn’t inherently make connections heavier—the goal is the internal force transfer and improved performance, not cosmetic or weight-related outcomes.

Continuity across connections means the joints transfer bending moments and shear so the members act as a single, continuous frame rather than independent pieces. When connections carry these forces effectively, the structure gains stiffness, resisting lateral loads more strongly and reducing unwanted deformations. At the same time, the frame can develop plastic hinges in a controlled way, improving ductility and energy dissipation during events like earthquakes or wind loads. That combination—moment transfer plus higher stiffness and ductility—is the practical benefit of continuity.

It doesn’t imply that deformation will be completely prevented, since all structures deform under load. It isn’t about exterior appearance, and it doesn’t inherently make connections heavier—the goal is the internal force transfer and improved performance, not cosmetic or weight-related outcomes.