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Design Rationale: Structure
721.2.1
Shallow Beams Combined with Suspended Ceiling-Platform
Pro:
1. Beams are simple to construct and economic in the span range in either
concrete or steel.
2. Independence of depth of structure and depth of service zone allows
each to be optimized in its own terms.
3. Ceiling hangers provide minimum obstruction to service distribution.
4. If one-way structure, space between beams may be reclaimed for
service distribution.
5. Service zone can be made deep enough for horizontal access.
Con:
1. Closely spaced beams impose restrictions on drops for drainage.
2. Substantial additional structure needed for walking surface on ceiling.
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