UFC 3-300-10N
May 2005
Including Change 2, August 2006
CHAPTER 3 DESIGN ANALYSIS AND DOCUMENTATION
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BASIS OF DESIGN
Provide a narrative report on how the design concept satisfies the customer's
requirements, meets criteria and is cost effective. Include statements on the following:
3-1.1
List a summary of the criteria upon which the structural design will be
based. Include a statement of live loading to be used, to include floor loads, wind, snow,
earthquake, etc., with references to justify the criteria used.
3-1.2
List all assumptions required for the structural design where the design
criteria is undefined, unclear, conflicting, or unknown. State the basis for the
assumption made.
3-1.3
Describe the gravity and lateral load structural systems selected for all
facilities to be constructed, and explain why it was selected. Provide all pertinent
information, such as capacity, size, dimensions, and a list of material selected with
design strengths.
3-1.4
Provide a narrative summary of the type of foundation to be used, method
by which the allowable bearing values are to be determined, and maximum allowable
bearing capacity and lateral-force resisting capacity of the foundations, as well as other
allowable soil parameters used in the design.
3-1.5
Describe the structural floor and roof systems proposed. Include a
description of the lateral force resisting system with appropriate materials and
dimensions. Clearly describe the load path to the foundation for both the vertical and the
lateral-force resisting system. Include definitions of the manner in which foundations
and slabs on grade are used to distribute lateral forces between the structure and the
ground.
3-1.6
When appropriate, provide a statement of any special considerations that
affect the design (e.g., "superflat floors" for high stacking warehouses, special corrosion
resistance requirements, fire-resistive requirements, retractable roofs, crane or
monorail, etc.).
3-2
DRAWINGS.
See UFC 1-300-09N. Structural drawings should be provided that sufficiently define
and detail all structural work.
3-2.1
Structural Notes.
The drawings must contain a set of "Structural Notes" in accordance with UFC 1-200-
01 which provide critical reference information for use when future modifications and
evaluations are made (e.g., Design Criteria, References to Design Standards, General
Construction Requirements).
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