Bob’s longest-running project is the Empire State Building; he began work on the iconic skyscraper in 1986 and is still handling various renovation projects today.

Robert Nacheman has nearly four decades of experience at Thornton Tomasetti, designing and administering a broad range of projects – everything from a mushroom-growing facility in Connecticut to Continental Center, one of the firm’s first high-rises. His portfolio includes the structural design of high- and low-rise office buildings, industrial facilities, parking facilities, hotels and institutional buildings, as well as the investigation and repair of existing buildings.

New Building Structural Design Experience
Throughout his career, Bob has been the project manager for dozens of new structures including corporate headquarters, hotels, universities and data centers. Highlights are 599 Lexington Ave. in New York City, Ashland Oil Company Headquarters in Kentucky, the Kuwait Embassy facility in New York City, an academic building at Amherst College in Massachusetts and a Crowne Plaza Hotel in Atlanta. 

Renovation and Restoration Expertise
A principal in the Renewal practice, Bob has extensive experience in the investigation of existing structures and building envelope systems, and the design and administration of repairs for deficient conditions, including work at the Empire State Building, the New York Central Building, 500 Fifth Ave., Five Penn Plaza and 100 Avenue of the Americas, to name a few. He is knowledgeable about a variety of structural systems and materials: steel, concrete, light-gauge metal, wood, masonry, aluminum, terracotta and cast iron.

Giving Back to the Profession
Bob shares his knowledge through numerous articles and presentations, including “New Life for Old Skyscrapers” for the American Society of Civil Engineers (ASCE) Structures Congress; “The Empire State Building: Façade Evaluation and Repair of an Engineering Landmark” for Structure magazine; and “Repair of a Landmark Building’s Façade: 230 Park Avenue” at ASCE’s 2012 Forensic Engineering Congress.

Outside of Work
When he is not working, Bob enjoys listening to all kinds of music, working on and driving vintage Porsches, gardening, building projects, hiking and reading.

• Condition assessment
• Alteration
• Restoration
• Structural analysis and design
• Litigation support