To limit the probability that the loads and influences that may reasonably be anticipated during construction and during the expected service life of the building will produce forces that may exceed the capacities of the structure and its components, which could lead to structural failure, which could lead to harm to persons.
To limit the probability that an accident either during construction or during the expected service life of the building that results in local failure will, because of the lack of structural integrity, lead to widespread collapse, which could lead to harm to persons.