In which type of connection are all elements bonded together?

In a rigid connection, all elements are effectively bonded together to form a single unit that resists both vertical and lateral forces. This type of connection allows for the transfer of loads and moments between connected members, contributing to the overall stiffness and stability of the structure. With rigid connections, such as those created using welded joints or reinforced connections, structural integrity is significantly enhanced, making them essential in buildings where high strength is necessary, like in areas subject to heavy loads or seismic activity.

Conversely, a pinned connection allows for rotation and does not transfer moments, which means that connected elements can move relative to one another. Gravity connections primarily rely on the weight of the components to maintain their position, while composite connections involve elements that work together but aren't necessarily rigidly bonded, often combining materials that behave differently under load. Therefore, the defining feature of rigid connections, where all elements are bonded together and work as a unified system, is what makes this answer correct.