How to consider fire resistance in a structure conception ?

 A fire partition is a barrier to restrict the spread of fire and is used to separate dwelling units, guestrooms, tenant spaces in covered malls, and corridor walls. Fire partitions are often required to provide a1-hour fire resistance rating. Generally, the structure supporting fire partitions should have a fire resistance rating equal to the rating of the fire resistive construction supported. However, the need to provide a1-hour fire resistance rating for structures supporting a fire partition in Type IIB construction is exempted. The support of fire partitions in Type IIB construction is allowed without having to upgrade the structure’s fire resistance rating to1-hour as described in IBC Section.4.