Eric Mueller

Building Statistics

This section compliments the Abstract, and provides more in depth details to make up of 555 12th Street

Part 1

General Building Data

Building:  555 12th Street or 555 Oakland City Center
Location:  Oakland, CA
Occupants:  Ask Jeeves, Hendricks and Partners, Franz, Inc., IDG Game Pro
                    Several other Law firms and practices
Function:  Class A office space and retail
Size:  487,000 sq ft, 19 floors office space, and 1 floor retail (19000 sq ft)
Stories:  20 stories, 2 levels underground parkingDates of Construction:  May 2000 – April 2002
Cost:  $75 Million Total Cost
Project Delivery Method:  Design – Build

National Model Codes: Uniform Building Code 1997
                                      California Building Code 1998
Zoning:  B1 and S3 for a parking structure and office space

Project Team: 
Developer/Owner:  The Shorenstein Co.
Architect:  Korth Sunseri Hagay Architects
General Contractor:  Charles Pankow Builders
Landscape Architect:  Guzzardo and Associates Inc
Lighting Consultant:  Auerbach and Glasow
Structural Engineer:  Nishkian Menninger Inc
Mechanical:  Acco Air
Electrical:  Schwartz and Lindheim
Plumbing:  L.J. Kurse Co.
Fire Protection:  Allied Fire Protection

Architecture: The building is expressed in a very contemporary way yet the fundamental architecture expression of base, middle and top is incorporated into the design.  An important design objective for the 555 City Center was to create a building base that would be an open and welcoming extension of the existing Clay Street pedestrian corridor.  To accomplish this, Korth's design provides a base that meets the sidewalks along Clay Street, 11th Street and Jefferson Street while attracting pedestrian traffic on the north side along 12th Street. "This base incorporates glazed storefronts which recall the scale and rhythm of the older traditional storefront systems found in the area," Korth said. He added that delicate glass canopies, textured wall panels, custom wall sconces and a granite base will provide the detailing needed to match the nearby buildings.
 

Historical Requirements:  Street-level storefronts on Clay Street take into account the area's older building designs. The base incorporates glazed storefronts which recall the scale and rhythm of the older traditional storefront systems found in the area. The delicate glass canopies, textured wall panels, custom wall sconces and a granite base will provide the detailing needed to match the nearby buildings.

Building Envelope:  The East/West walls consist of precast concrDecember 21, 2006used.  Along the N/S elevations, which is considered the glazed wall, spandrel and vision glass are used and supported by the floor slabs.  Precast panels are also located on these faces.  The entire top of the building was conceptualized as an expansive curved lantern that will glow on the Oakland skyline in the evenings.  Built-up roofing over lightweight concrete is typical of the roofing system.

Building Statistics Part II

Structural

Typical floors 3-21 are 3” 18 gage composite deck with 2 ½” of normal weight concrete cover.  The slabs are reinforced by either #6 @ 13” EW or WWF6x6 W1.9.  The majority of the structural system is steel framing.  All structural framing steel is designated as ASTM A992, Gr 50, unless otherwise noted.   The building takes advantage of two lines of symmetry, one in the N-S direction, and the other in the E-W direction.  The typical floors, 2-21, have the same framing, unless otherwise noted.
On a typical floor, beams are sized as W18x55 and W18x60 and span 43’-6”. The girders are sized W18 – W27, and span 30 – 35’, depending on location in the bay analyzed.  The overall max depth of the floor system is 26.7” for a W27, plus an additional 5.5” for the composite deck, for a total of 32.2”.
The lateral force resisting system is a dual system comprised of eccentrically braced frames at the core and special moment frames on the perimeter.

Mechanical

            The HVAC system was a “built-up” system with the air handlers, cooling towers, chillers and boilers on the roof.  Conditioned air is distributed down lined drywall shafts to each floor.  At each floor air is distributed into the main duct loop above the ceiling.  Return air is distributed up through the ceiling plenum (in the Tenant Costs by others) and then into the core vertical gypboard shaft.   Halfway through the project, the Owner requested to “May 7, 2007ucts off of the main duct loop and VAV boxes that control the air supply and re-heats the air if required.  
            There are two boilers and two chillers which supply 6,000,000 BTU’s/boiler and 415/650 Tons/chiller.  The building is fueled by natural gas, and is 100% sprinkled.

Electrical

            Electrical circuits are split up so one set controls the west wing, and the other controls the east.  Electrical service is 277/480V at 1600A and 1000A, for the east and west primary switchboard.  This power is then routed to 480-120/280V switchboards for each floor, for each tenants use.  There is an 1100kW emergency generator on site, if power shuts down.

Plumbing

            The building utilizes a purple pipe system for efficiency.  It is a dual plumbing system that recycles water throughout the building.