Which load is characterized by its application in short bursts?

The load characterized by its application in short bursts is the impact load. Impact load refers to a sudden application of force, such as the force exerted when an object strikes a surface or when vehicles drive over a bridge. This type of load involves dynamic forces that can have a significant effect on structures, especially if they are not designed to absorb or withstand such sudden impacts.

In construction and engineering, understanding impact loads is crucial for ensuring that structures can safely handle unexpected forces without failure, particularly in areas subject to heavy machinery or transportation. This type of load is distinct from static loads, which are constant and applied evenly over time, as well as concentrated loads that are applied at a specific point but still generally over a longer period. Wind loads are another type of dynamic load but are applied more continuously rather than in bursts. Impact loads typically require specialized design considerations to enhance the resilience of structures.