304.2.3 High Impact

The tolerable impacts of the design loads are assumed as follows:

There is significant damage to structural elements but no large falling debris; repair is possible. Significant delays in reoccupancy can be expected.

Nonstructural systems needed for normal building or facility use are significantly damaged and inoperable; egress routes may be impaired by light debris; emergency systems may be significantly damaged, but remain operational.

Injuries to building or facility occupants from hazard-related applied loads may be locally significant with a high risk to life, but are generally moderate in numbers and in nature. There is a moderate likelihood of single life loss, with a low probability of multiple life loss. The nature of the applied load (i.e., fire hazard) may result in higher levels of expected injuries and damage in localized areas, whereas the balance of the areas may sustain fewer injuries and less damage.

Damage to building or facility contents from hazard-related applied loads may be locally total and generally significant. The nature of the applied load (i.e., fire hazard) may result in higher levels of expected injuries and damage in localized areas, whereas the balance of the areas may sustain fewer injuries and less damage.

Hazardous materials are released to the environment with localized relocation needed for buildings and facilities in the immediate vicinity.