Classification of High-rise Buildings Building Classification
《Class 1》
Definition
Residential buildings with the building height more than 54m (including the residential buildings with commercial service points)
Fire endurance
Incombustibility / 1.5 hours
For civil buildings with the building height more than 100m, the fire endurance of their floor slabs shall not be less than 2 hours.
《Class 2》
Definition
Residential buildings with the building height more than 27m but not more than 54m (including the residential buildings with commercial service points)
Fire endurance
Incombustibility / 1.0 hour
From Code for Fire Protection Design of Buildings, GB50016-2014