Conceptual Master Plan - Emeryville Center of Community Life

CONCEPTUAL DESIGN January 9, 2009
Emeryville Center of Community Life
STRUCTURAL DESIGN CRITERIA AND MATERIAL SPECIFICATIONS
1. Design Criteria
Structural design will conform to the California Building Code, 2008 Edition with the following:
Live loads: Roof (flat) 20 psf
Roof (sloped)
16 psf
Floors – Classrooms
40 psf
Floors – Offices
50 psf
Floors – Libraries
60 psf
Floors – Corridors
100 psf
Floors – Corridors 2 nd , 3rd flrs 80 psf
Gymnasiums
100 psf
Terraces 100 psf
Wind Analysis: Basic wind speed 70 mph
Exposure
B
Seismic Analysis: Static lateral force procedure with Near Source Effects.
2. Subgrade Preparation
In general, provide a 15 mil vapor barrier over 4" rock course under the slabs on grade. Rock
course shall be rolled to a smooth surface. Because the existing subgrade soils may be
expansive, the site may require over-excavation of existing soil. For estimating purposes,
allowances should be made for a minimum of 12"of "non-expansive" fill be placed immediately
below the 4" of subgrade preparation. This will need to be verified by the future geotechnical
engineer.
3. Shallow Spread Footings
The building structures will be constructed on shallow spread footings and they shall extend to
such depth as to bear upon firm, undisturbed native soil or engineered fill. All footings shall be
founded at a depth at least 18" below the lowest adjacent exterior grade and 18" below interior
finished pad grade. See Section 2 above for subgrade pad explanation. Exterior footings for all
buildings founded at grade will consist of continuous grade beam footings approximately 16" in
width. Interior footings will consist of continuous grade beam footings approximately 18" in
width and isolated spread footings. Interior and exterior grade beams will utilize approximately
15 lb/ft of reinforcing. Any and all abandoned footings, utilities, etc. shall be removed prior to
construction.
Outline Specifications- 31