Logan International Airport - New International Gateway Terminal E
Structural, seismic, and blast analysis and design for terminal addition with deep foundations. Design of third-level roadway and connecting vehicle exit ramp. 730,000 sf.
Logan Airport Terminal E's building area was doubled and a viaduct built to provide curbside vehicle access at the third level. During the first project phase, a three-level addition was constructed south of the existing facility, which was renovated. During the second phase, the West Concourse and contact gates were added, along with associated apron/taxiway and fueling system improvements. Weidlinger Associates conducted preliminary studies to determine the most cost-effective structural system, integrating seismic and antiterrorist blast protection with international terminal program requirements. Based on these studies, Weidlinger provided final designs for the deep foundation system, the South Addition structural steel system, and portions of the viaduct in front and west of the South Addition.
The straight frontage roadway portion, designed by Weidlinger, consists of abutting prestressed, precast concrete boxes with a composite concrete topping. Supported on 12 bents, it is jointless for its entire 685-foot length. The ceiling beneath, which is clad with architectural materials, is less likely to be damaged by leaks than if it were topped by a viaduct with expansion joints.
The connecting exit ramp to the west, also designed by Weidlinger, is a curved post-tensioned, cast-in-place box that carries two lanes of traffic on three spans for 225 feet before splitting. One lane proceeds onto a single 115-foot span, leading to an integral abutment that feeds traffic to at-grade roads. The other lane travels over two 117-foot spans that connect to the proposed main circulation viaduct
Completion Date: 2003 Location: Boston, Massachusetts Owner or Client: Massport Prime Consultant(s): Skidmore Owings & Merrill