Los Angeles International Airport Terminal 5 Landside Renovation for Delta Air Lines

Los Angeles, CA

Originally constructed in 1959, Terminal 5 was part of the first original major terminal construction projects at LAX. Over the subsequent decades, many additions and renovations transpired. However, until the Delta renovation, there had been no consideration of their cumulative effect in the context of acceptable seismic performance. Buehler worked closely with the Architect, Delta, and Los Angeles World Airports to establish seismic performance objectives.  The challenge: Design a structural retrofit that meets 21st century seismic performance objectives in phased construction while keeping the facility fully operational.  The solution: A segmented installation of new Buckling Restrained Braced Frames combined with carbon fiber reinforcing of existing concrete walls.

Quick Facts

  • Size: 135,000 SF
  • Architect: Corgan
  • The project was originally constructed in 1959 with additions/modifications in 1967, 1969, 1975, 1981, 1985, 1986, 1987, 2009 and 2010
  • Construction Cost: $175,000,000
  • Contractor: Swinerton Builders


  • 2016 SEAOSC Excellence in Structural Engineering – Retrofit/Alteration