720
Design Rationale: Structure
721.2.4
Combination Access Floor and Suspended Ceiling
Pro:
1. Access to all distribution systems for a floor is available from that floor.
(Air feeds down through ceiling with no need for fire dampers.
Drainage is through floor. Supply piping can be in either location.)
2. Ceiling leveling is inherent in the system.
Con:
1. Floor jointing may be a problem in hospital.
2. Performance requirement of access to service distribution systems
without disturbing hospital functions cannot be met, i.e., horizontal
access is not practical.
3. If a non-acoustically-rated ceiling is used, partitions must penetrate to
slab to close flanking path.
721.3
USE OF SHEAR WALL AND/OR BRACED FRAME SYSTEM OF
RESISTING LATERAL FORCES
There are two basic schemes for resisting lateral forces in building
structures. The first is the shear wall or "box" system, consisting of solid
walls (concrete) and/or braced frames subjected primarily to axial loadings
(usually steel).
3 - 86
Previous Page
