Intent 1:
To limit the probability that:
- the live load due to use and occupancy will not take
into account the expected accumulation and distribution of people
and objects on the floor or roof surface, including an allowance for
dynamic effects due to people, and
- the live load due to use and occupancy will be less
than the prescribed minimum value.
This is to limit the probability of
the excessive deflection or excessive vibration of structural elements,
which could lead to negative effects on the psychological well-being
of persons.