SidePlate

Sea-Tac Air Traffic Control Tower (ATCT)

Seattle-Tacoma Intl Airport,WA

Client

Department of Transportation/Federal Aviation Administration

Architect

URS Greiner / Woodward Clyde

Structural Engineer

URS Greiner / Woodward Clyde

General Contractor

PCL Construction Services, Inc.

Fabricator

XL Iron Works Surrey,BC,Canada

Erector

Pacific Erectors

Description

265’ Air Traffic Control Tower Using Antiterrorist Bomb Blast Security Criteria




“The professional help from SidePlate® was beyond expectation. ‘That’ made a difference.”

– Silvano Patrignani,

XL Ironworks

Challenges

• To satisfy the FAA’s Antiterrorist Bomb Blast Security Criteria using a braced dual system for the steel frame tower for improved economics and security
• Project budget and schedule precluded the use of other connection systems without additional testing due to SAC’s imposed limitations on the extent of their prequalification

Solutions

• SidePlate’s unique versatility allowed the use of its SureBrace2™ connection system, which combines a moment frame with a super X-braced SCBF connection system to take advantage of unlimited column depth prequalification (W27x cruciform column used) for maximum economy and robustness.