design foundations; foundation investigation and
design may be performed by the Contractor. The
project design structural engineer must design and
detail the foundations based on loads obtained for
similar building types with the specified loading.
The drawings should contain notes indicating that
the foundations are provided for bid purposes only
and that actual foundations, using similar details,
will be provided by the Contractor.
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The design analysis shall be the design of a licensed Professional Engineer
experienced in design of this work and shall include complete calculations
for the building, its components, and the foundations. Foundations shown
on the drawings are based on loads derived from a representative set of
similar building types. The Contractor shall obtain the services of a
licensed Professional Engineer to verify that the foundations shown are
adequate for the building supplied using the criteria in paragraph
Foundations. Formulas and references shall be identified. Assumptions and
conclusions shall be explained, and cross-referencing shall be clear. Wind
forces on various parts of the structure, both positive and negative
pressure, shall be calculated with the controlling pressure summarized.
Lateral forces due to seismic loading shall be calculated and tabulated for
the various parts and portions of the building. Computer programmed
designs shall be accompanied by stress values and a letter of
certification, signed by a licensed Professional Engineer, stating the
design criteria and procedures used and attesting to the adequacy and
accuracy of the design. A narrative of the computer program delineating
the basic methodology shall be included. Computer program output shall be
annotated and supplemented with sketches to verify the input and output.
Critical load conditions used in the final sizing of the members shall be
emphasized. The design analysis shall include the name and office phone
number of the designer, who shall function as a point of contact to answer
questions during the detail drawing review.
1.2.1.2
Dimensions
Building dimensions shall be as standard with manufacturer, not less than
those indicated, but exceeding the indicated dimensions only by the amount
of the closest standard size thereto. Eave height shall be measured from
the top of finished floor to intersection of insides of roof and sidewall
sheets. The clear height between finished floor and bottom of roof steel
shall be as indicated.
1.2.1.3
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NOTE: Modify the paragraph as necessary to describe
the type of framing system required. Allow optional
roof slopes except where conditions do not permit.
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NOTE: Gable roofs will be specified for all
buildings, except where single-slope roofs are
necessary for small buildings or for building
extensions. Structures will be limited to
single-span only when interior columns would
SECTION 13120
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