To limit the probability that the live load due to use and occupancy, which is used for the structural design, will not take into account the maximum expected concentration of weight due to people and objects in a local area of floor or roof, which could lead to the excessive deformation of, or excessive stress in, structural components, which could lead to damage to the building.
To expand the application of Article 4.1.5.2. to the determination of concentrated loads for occupancies not listed in Table 4.1.5.9.