What is a characteristic of moment-type connections in girders?

Moment-type connections in girders are designed to provide rotational resistance between girders and columns, which enables them to transfer moments, or bending forces. This characteristic allows moment connections to help maintain the structural integrity of the system, particularly in creating lateral stability. By properly transferring forces throughout the frame, moment connections contribute to the overall stability of the structure, especially in areas subject to lateral forces such as wind or seismic activity.

The ability to allow for rotation and simultaneously provide resistance to bending moments distinguishes them from other connection types, which may only support vertical loads or prevent rotation. This rotational capacity is a fundamental aspect of how moment connections function, making them essential in building frameworks, particularly in commercial and multi-story construction where load distribution and stability are critical.

The other options do not accurately capture the primary purpose and function of moment-type connections. For example, while they certainly contribute to lateral stability, they do not solely focus on vertical loads, nor are they exclusive to residential buildings. Their use is widespread across various types of construction to ensure the robustness of the structural frame.