There are three general types of connections: pinned, rigid, and:

The correct answer highlights a fundamental connection type in structural engineering. Gravity connections are specifically designed to support loads primarily due to the force of gravity. Unlike pinned and rigid connections, which resist lateral loads and allow or restrict rotations between connected members, gravity connections focus on vertical loads and the downward pull of gravity.

Gravity connections are essential for stability in structures where load transfer occurs due to weight rather than lateral forces. They enable different components of a structure to work together efficiently, ensuring that the gravitational force is effectively managed.

In contrast to this, pinned connections allow rotation and are often used in applications where there is a need for flexibility. Rigid connections are meant to resist rotation, providing a more stable and fixed arrangement. Understanding these distinctions is crucial for a safety officer to ensure that structures are designed and implemented correctly for safety and functionality.