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Owner: Caribou Industries
Architect: Carrier Johnson
General Contractor: Hensel Phelps
Construction Company |
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After years of public debate, when a referendum finally approved plans for the tallest building in Orange County, California — the 37-story, 491-foot One Broadway Plaza in Santa Ana — Thornton Tomasetti Project Engineer Payam Khashaee knew the project would get more than the usual notice.
“The building is a lightning rod for attention,” said Khashaee, who is based
in the Irvine office. “Because it will be a landmark, the owner pushed for the best possible design.” This translated into Khashaee and team developing many engineering options.
“As Lev Zetlin advised,” Khashaee recalled, quoting the founder of Thornton
Tomasetti, “when you go into a client meeting, bring lots of options and let
the client choose.”
Khashaee and team presented 15
structural systems for evaluation of architectural aesthetics, tenant
functionality, and structural benefits. Collaborating with the New York office, the team also prepared four options
for floor vibration control.
The design selected has a concrete core and a steel frame that wraps around the perimeter. “When the price of concrete went up,” Khashaee said, “the client
asked ‘What if we just used steel?’ so
we quickly re-examined that option.”
“I’m proudest of the efficiency of our work,” Khashaee said. “Weekly meetings led to excellent coordination between the architect, contractor and engineers. Everyone trusted our recommendations for minimizing construction complexity. And trust is the essential ingredient in
any successful project.”
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