What is live load in the context of architectural design?

Live load refers specifically to the movable loads that a building structure must support, which include occupants, furniture, and other transient items. In architectural design, it is crucial to account for these loads because they can change over time as the usage of the space fluctuates. Unlike dead loads, which are permanent and account for the weight of the structure itself and any fixed installations, live loads can be dynamic, meaning their magnitude and distribution may vary throughout the building’s lifespan.

Understanding live loads is essential for structural integrity, as they contribute to the overall safety of a building. Engineers have to calculate the maximum expected live loads to ensure that the structure can accommodate the variations in occupancy and usage without risk of failure. This aspect of design ensures that buildings remain safe and functional in response to how they are used over time.