Project

Revitalizing Infrastructure: H-JAIA CPTC Modernization Project by Willmer Engineering

HOK led a team, including Willmer Engineering, to design $200 million improvements to the H-JAIA Central Passenger Terminal Center (CPTC).

This improvement is a part of the $6 billion, 20 year expansion and modernization plan. A key element of design is two 864-foot-long canopies which will cover curbside pick-up and drop-off areas.

Team structural engineers proposed to support the canopy loads on the first interior row of columns in the terminal, with the exterior edge support on concrete pedestals next to the parking decks. Willmer performed an assessment of the existing interior column footings in the basement of the terminal to determine their capacity to sustain additional loads without excessive additional settlement. Where investigation indicated the footing was already loaded to full bearing capacity, an extension of the footing was designed to be supported on high capacity micropiles bearing in rock. Based on subsurface exploration, the pedestals supporting the exterior canopy loads were designed to also be supported on micropile foundations.

Willmer Engineering provided all geotechnical engineering exploration for both interior and exterior column locations and worked closely with the structural engineers during design to optimize recommendations. During construction, Willmer provided CA services for the team to review contractor submittals for micropiles and soil nail walls, observed compression and lateral load tests for micropiles and soil nail verification tests for walls.