United Airlines Terminal One at O’Hare International Airport in Chicago.

United Airlines Terminal One



Thornton Tomasetti provided structural design and blast engineering services for the United Airlines terminal. The project includes 42 gates in two parallel, 1,600-foot concourses and baggage handling areas. The long-span ticketing area serves as the dramatic entrance to the structure with 1,730-foot-long vaulted gate areas. The ticketing pavilion features folded plate trusses creating a 120-foot by 810-foot column-free area.

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Specialized Structural Engineering Expertise


Aviation buildings have many special engineering considerations. Wide hangar doors, long-span roofs that must support gantries – often with moving loads – and other heavy equipment, baggage handling equipment and people movers all have specialized structural requirements.

After working on more than 100 aviation projects in the United States, Asia, Latin America and the Middle East, our engineers have developed best practices that enable us to produce efficient and effective designs for hangars and terminals.