What is used if the basic uniform live reduction method is specified?

The correct answer indicates that when employing the basic uniform live reduction method, the guidelines from the American Society of Civil Engineers (ASCE) are applicable. Specifically, the ASCE's Standard 7 outlines criteria for live load reductions that are essential for structural design, including various load combinations and factors to consider depending on the type of structure and its anticipated loads.

ASCE provides the framework for calculating load reductions based on factors such as usage and occupancy, which is particularly relevant when dealing with uniformly distributed live loads. These provisions are crucial for ensuring safety while allowing for practical design adjustments based on expected usage.

The International Building Code (IBC) does reference ASCE 7 for live load calculations, but it does not independently provide the details necessary for applying the basic uniform live reduction method. Therefore, while the IBC is integral to building standards and regulations, it does not have the specific provisions for the method in question on its own.

Thus, relying on ASCE ensures that designs are appropriately tailored for expected use, maintaining structural integrity while optimizing material usage.