What type of connection between girders and columns provides lateral stability?

The type of connection that provides lateral stability between girders and columns is a moment-resisting connection. This is because moment-resisting connections are designed to resist bending moments, which helps to transfer forces between the connected elements. In structural engineering, lateral stability is crucial for maintaining the integrity of a structure during lateral loads, such as wind or seismic forces.

Moment-resisting connections are typically rigid, allowing them to maintain their shape under load and prevent rotation at the point of connection. By effectively transferring moments and shear forces through the connection, they contribute significantly to the structural frame's overall stability.

In contrast, other types of connections do not provide the same level of rigidity. Pin-type connections allow for rotation and do not transfer moments, thereby being less effective in maintaining lateral stability. Flexible connections, while allowing for some movement, also do not provide the necessary resistance to lateral loads. Rigid connections can be associated with moment-resisting connections, but specifying "moment-resisting" emphasizes their capability to handle bending moments, which is critical for lateral stability.