Sue and Bill Gross Women's Pavilion at Hoag Memorial Hospital, Presbyterian, Newport Beach

A comprehensive center combining progressive technology with patient education and comfort, the Women's Center project at Hoag Hospital entailed construction of a seven-level patient tower plus a basement, an interstitial floor between the first and second levels and a mechanical penthouse on an operational medical campus.

An 11,000-sq.-ft., two-level connector building with a café and gift shop was also constructed. The Women's Pavilion is composed of a cast-in-place concrete mat slab foundation, retaining walls and shear walls up to ground level with a precast concrete and curtainwall exterior.

When the 320,000-sq.-ft. facility opened in October, it nearly doubled the clinical space on the hospital's campus. It will serve as the new main entrance for the hospital and will house more than 15 new and existing services including women's health services, ambulatory procedure services, laboratory services, patient registration, patient education and a hospitality center.

More than 1 million construction manhours and countless more during design and preconstruction were spent to construct this pioneering health care project. Located just 2 kilometers away from the Newport-Inglewood Fault and expected to set a precedent for future base isolated hospitals, the innovative seismic technology on the Women's Pavilion presented unique challenges. It is the first OSHPD building under construction with a steel-moment frame on base isolators and the first base-isolated hospital building under construction that had the isolators tested for tension and shear.

Installing the base isolators meant temporarily supporting 4,000-lb. isolator base plates while concrete was poured into forms containing the base isolator pads. Therefore, the base isolator baseplates were bolted to the isolator pads and held in place using a complex system of thread rods and wire to ensure zero tolerance and avoid rework. Additionally, McCarthy devised an elaborate template, allowing baseplates to be successfully poured in 54 locations without a single failing.

"McCarthy understood the critical nature of the connection between the columns and foundation with an isolator in between. There was only 1/16-in. of tolerance to make it all fit together," said Randy Regier, AIA, president of Taylor & Associates Architects.

The design documents required preheating of the building frame's structural steel before welding could commence. A precise welding plan was developed that eliminated the uncontrolled effects of steel expansion and contraction that could be caused by heating and cooling, thus throwing the building out of plumb.

The tight site provided further challenges. An enormous crane was needed to hoist 50,000-lb. structural steel columns and to set a 20,000-lb. precast panel more than 300 ft. away. After an appropriate location was found to accommodate this crane, a pad was built and the ground was prepared to support the crane and its loads.

"Although the challenges were many, we had a highly efficient team, each of which brought their expertise and ability to problem solve and to work together," said Langston Trigg, vice president of facilities design and construction at Hoag Hospital.

Owner's Comments:

"The entire team is proud of its accomplishments. We beat our budget, finished ahead of schedule and maintained a high level of quality in the end product." -Langston Trigg, vice president of facilities design and construction, Hoag Hospital

Project Team:

Owner: Hoag Memorial Hospital Presbyterian
Architect, interior design: Taylor & Associates Architects
Construction manager: Jacobs Facilities Inc.
General contractor: McCarthy Building Cos. Inc.
Landscape architect: Rabben/Herman Design Office
Artwork consultant: J.D. Thompson & Associates
Intaglio artist: Tom Van Sant
Engineering team:
Taylor & Gaines (structural)
Tsuchiyama Kaino Sun & Carter (mechanical engineer)
R.E. Wall & Associates
(electrical engineer)
David A. Boyle Engineering (civil)
Key subcontractors:
Beck Steel (miscellaneous steel)
Briggs Electric
Control Air Conditioning
Coreslab Structures (precast concrete)
Cosco Fire Protection
CP Contractors (equipment installation OFCI)
Custom Metal Fabricators (expansion- joint cover assemblies)
DVV & Associates (exterior consultant)
Dynalectric
ETS Lindgren (MRI)
Herrick (structural steel)
ISEC (casework)
Johnson & Turner Painting
Letner Roofing
Malcolm Drilling
McCarthy Concrete
McIntyre (metal decking)
Model Glass
Mollenhauer (survey/field engineering)
Otis Elevator
Pan Pacific Plumbing
Performance Contracting Inc. (acoustic ceilings)
Premier Tile & Marble
Raymond (drywall/fireproofing)
Seeley Brothers (doors, frames, hardware)
Shaw & Sons (site concrete)
SMG Stone
Spectra Contract Flooring
Swisslog Translogic (pneumatic tube system)

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