|
Gladstones Institute Breaks New Ground
By Thomas York
The $72 million building is the
first in San Francisco to have an un-bonded brace-frame system
The J. David Gladstone Institutes, a 185,000-sq.-ft research
facility on the evolving UCSF Mission Bay campus in San Francisco,
is a major undertaking that includes two "firsts"
in the city's rich annals of large-scale building projects.
The structure is the first privately financed life-sciences
research facility to be approved by the city's building department
and its first major steel-frame building to use an un-bonded
brace-frame system. The Japanese-made, diagonal braces act
like automobile shock absorbers during a quake, and absorb
most of the lateral forces of a temblor.
Designed by Seattle-based NBBJ, the Institute's research
building is part of the University of California San Francisco's
new 43-acre Mission Bay campus. Construction began in April
2003 and will be completed this month.
Foster City-based Rudolph & Sletten is the general contractor
for the $72 million project, which features a tube-steel truss
system attached to a steel skeleton. The design enables the
skeleton to support heavy loads imposed by the skin of the
six-story building.
Members of Gladstone's construction team said they had a
bit of convincing to do to get the system past skeptical building
inspectors.
"We had to provide lots of education and bring them
up to date," said Todd Sklar, principal of San Francisco-based
Mezzatesta Sklar, which served as Gladstone's project manager
and owner/representative for the project.
DaNett DeBrine, Rudolph & Sletten's project manager,
said third-party experts had to approve of the braces before
inspectors would allow them to be installed. Once approved,
they were purchased and installed by the structural steel
subcontractor, Pleasanton-based Herrick Corp.
"They increase the survivability of the building, and
minimize the damage so that it doesn't shut down for a long
period of time," DeBrine said.
Despite the challenge of getting the earthquake braces approved,
the project proceeded on a tight schedule.
"Permitting went smoothly," said Debbie Addad,
Gladstone's operations officer. "We hired a permit expeditor
who was used to working with the department, and we did a
significant amount of coordination with the planning department,
keeping personnel there in the loop."
Major subcontractors include Menlo Park-based Critchfield
Mechanical Inc. (HVAC system); San Jose-based KDS Plumbing,
San Jose-based Therma Corp., (plumbing); the San Francisco
office of Rosendin Electric, (fire alarms and electrical system);
and Fremont-based Walters & Wolf (exterior skin).
San Diego-based Earl Walls Associates designed the laboratories.
The new building puts three separate research labs--the Institute
of Cardiovascular Diseases, Institute of Virology and Immunology
and Institute of Neurogenerative Diseases--under one roof.
The labs are now housed in San Francisco's county hospital
complex several miles away in the Mission District.
Researchers from each of the three labs will take one floor
of the building. Administration offices and rooms will occupy
the rest. The building will house about 500 employees.
On the research floors, Addad said lab benches, equipment
and offices have been laid out in "stripes," or
long, narrow rows The benches run down the left side of each
floor, while core labs and equipment rooms have been placed
in the center. The researchers' offices run down the right
side of the building.
The layout creates more flexibility, and more useable space
because of the open nature of the labs and other work areas,
she said.
"We spent a lot of time getting user input into the
design, and what I love is that we have achieved such a good
use of space," said Addad. "Researchers will have
lots of windows and lots of light."
Sklar said designers took the idea of the open layout from
a new lab recently built in England. He said Gladstone's Mission
Bay building is only the second or third in the United States
to adopt the layout.
Rudolph & Sletten's DeBrine said the pre-construction
phase took two years, much longer than usual for a project
of this scope and size, but the construction phase came in
just ahead of schedule.
Nevertheless, she said interior ceiling heights presented
some headaches in terms of scheduling the installation of
the electrical, plumbing and HVAC systems. The floor-to-ceiling
height measures 14 ft., 10 in.--compared to 15-ft.-high ceilings
typically found in research labs.
"The lower ceiling added another level of difficulty
and made the mechanical, electrical and plumbing difficult
to coordinate," DeBrine said.
|