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Thornton Tomasetti

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Thornton Tomasetti (formerly the Thornton-Tomasetti Group, Thornton Tomasetti Engineers, Lev Zetlin & Associates and LZA Technology) is a 1,500-plus person engineering consulting firm headquartered in New York City. The company operates more than 50 offices, serving clients worldwide.

The company has expertise in structural engineering, façade engineering, forensics, renewal, construction engineering, property loss consulting, sustainability, applied science, protective design and transportation. The engineering firm provided the structural design for several of the world's tallest building structures, including the Petronas Towers in Kuala Lumpur, Malaysia; and Taipei 101 in Taiwan. Other structures designed by the firm include Soldier Field in Chicago, Petco Park in San Diego, and the Minneapolis Public Library in Minneapolis. Among other architects of note, Thornton Tomasetti has collaborated with Cesar Pelli, Santiago Calatrava, Renzo Piano, and Rafael Vinoly.

Thornton Tomasetti works to advance sustainable design and construction practices. About one-fifth of its staff are LEED accredited professionals (LEED AP). Thornton Tomasetti was the first structural engineering company to sign the AIA 2030 Commitment.[1]

History

The company began using the name Thornton Tomasetti in 1975 when Charlie Thornton and Richard Tomasetti purchased Lev Zetlin & Associates (LZA) from Gable Industries, to which Lev Zetlin had sold LZA in 1971. Thornton Tomasetti immediately began to branch out and enter the highrise market with several innovative designs. [2]

New York City office

The New York City office essentially began in 1956 as Lev Zetlin & Associates (LZA), founded by Lev Zetlin upon the completion of his PhD at Cornell University. Zetlin pioneered the use of the double layer bicycle wheel roof system used in the Utica Civic Auditorium (also known as the Utica Memorial Auditorium), as well as the hyperbolic (hypar) roofs used in American Airlines 747 super-hangars at airports in Los Angeles and San Francisco. Lev Zetlin also embraced the creative use of materials, most notably demonstrated in a bridge design made entirely of paper products for an International Paper ad.[3][4]

Chicago office

Eli Cohen

In 1993, Thornton Tomasetti acquired Cohen-Barreto-Marchertas (CBM) and created a Chicago office. Founded in 1965 by Eli Cohen, CBM pioneered the use of the now-common composite steel structural system, which combines a reinforced concrete core wall (to resist lateral loads) with a light steel floor framing. The development of 50- to 60-story buildings became more feasible and efficient because the lighter framing reduced construction time and expense, and allowed for large, column-free spans, giving architects greater freedom in exterior expression. In the early 1960s, Cohen's adaptation of the concrete cooling tower design to high-rise offices required a change in the way the unions worked. Until that time, ironworker contracts forbid members of other trades to work at higher elevations at job sites. But the proposed system was reviewed with them and they agreed to let concrete workers work above them.[5][6][7][8][9]

Merger with Weidlinger Associates

On September 8, 2015, Thornton Tomasetti announced that it had merged with structural engineering firm Weidlinger Associates. "The combined firm will have 1,200 employees operating in 34 cities internationally", and will operate under the Thornton Tomasetti name.[10]

Projects

Taipei 101
Petronas Towers
The New York Times Building

Skyscrapers, buildings and structures

  • 1111 South Wabash, Chicago
  • 181 West Madison, Chicago
  • 191 North Wacker, Chicago
  • 30 Hudson Street, Jersey City, New Jersey
  • 30 West Oak, Chicago
  • 401 East Ontario, Chicago
  • 420 Fifth Avenue, New York
  • 5 Times Square, New York
  • 546 Fifth Avenue, New York
  • 55 East Erie, Chicago
  • 550 West Jackson, Chicago
  • 599 Lexington Avenue, New York
  • 717 Texas Avenue, Houston, Texas
  • 745 Seventh Avenue, New York
  • 840 North Lake Shore Drive, Chicago
  • 855 Avenue Of The Americas, New York
  • ABN AMRO Plaza, Chicago
  • AMA Building, Chicago
  • Americas Tower, New York
  • Block A & Block C, MGM CityCenter – "Project CityCenter", Las Vegas, Nevada
  • Block 21, Austin, Texas
  • Bloomberg Tower, 731 Lexington Avenue, New York
  • CBS 2 Broadcast Center, Chicago
  • Chase Center, Chicago
  • Chifley Tower, Sydney, Australia
  • Children's Museum of Los Angeles, Los Angeles
  • Citicorp Center, Chicago, Illinois
  • City View Tower, Chicago, Illinois
  • Conrad Chicago Hotel, Chicago
  • Comcast Tower, Philadelphia
  • Continental Center, New York
  • Deep Space Auditorium, Verona, Wisconsin
  • Embassy Suites, New York
  • Erie on the Park, Chicago
  • Eurasia Tower, Moscow
  • Federation Tower, Moscow
  • Fifty South Sixth, Minneapolis
  • Furman Hall, New York
  • Great American Tower at Queen City Square, Cincinnati
  • Harborside Financial Center Plaza 5 & Plaza 10, Jersey City, New Jersey
  • Hilton New Orleans Riverside, New Orleans
  • Kingsbury on the Park, Chicago
  • Lehman Brothers Building, New York
  • Leo Burnett Building, Chicago
  • Lotte Center Hanoi, Hanoi, Vietnam
  • McMahon Hall of Fordham University, New York
  • Menara Maxis, Kuala Lumpur, Malaysia
  • Metapolis, Hwaseong, South Korea
  • Minneapolis Central Library, Minneapolis
  • Miranova Condominiums, Columbus, Ohio
  • Modern Art Museum of Fort Worth, Fort Worth, Texas
  • New York Times Building, New York
  • One Indiana Square, Indianapolis
  • One Liberty Place, Philadelphia
  • One Mellon Bank Center, Pittsburgh
  • One Pennsylvania Plaza, Philadelphia
  • Optima Horizons, Evanston, Illinois
  • Optima Towers, Evanston, Illinois
  • Overture Center, Madison, Wisconsin
  • Palazzo Lombardia, Milan, Italy
  • Park Alexandria, Chicago
  • Petronas Towers, Kuala Lumpur, Malaysia
  • Plaza 66, Shanghai, PRC
  • Prentice Women's Hospital, Chicago
  • R R Donnely Building, Chicago
  • Random House World Headquarters, New York
  • Taipei 101, Taipei, Taiwan
  • Tencent Headquarters, Shenzhen, China
  • The Clare at Water Tower, Chicago
  • The Edge, Brooklyn, New York
  • The Westport, New York
  • The Plaza at PPL Center, Allentown, Pennsylvania
  • Times Square Tower, New York
  • UBS Tower, Chicago, Illinois
  • University of Chicago Graduate School of Business Building, Chicago, Illinois
  • We've the Zenith, Busan, South Korea
  • Westin Hotel at Copley Place, Boston
  • Winspear Opera House, Dallas

Stadiums and convention centers

The New Minneapolis Central Library, designed by César Pelli, completed in 2006
Ford Field
U.S. Bank Stadium
Banc of California Stadium

Renewal and rehabilitation

  • Chrysler Building – Facade Rehabilitation, New York
  • United States Capitol dome – Structural Rehabilitation, Washington, D.C.
  • Washington Monument Renovation, Washington, D.C.
  • Winter Garden Reconstruction – Structural Repairs, New York

Forensics, investigation and property loss consulting

  • i-35 bridge collapse, Minneapolis, Minnesota
  • Indiana State Fair stage collapse[11]
  • Miller Park investigation, Milwaukee, Wisconsin
  • Response to CAT-90 Sandy, New York, New Jersey and Connecticut
  • Tropicana parking garage collapse, Atlantic City, New Jersey
  • World Trade Center disaster response, New York

Under construction

Community projects

In addition to founding Thornton Tomasetti, Charlie Thornton founded The ACE Mentor Program, which is a not-for-profit organization, formed to enlighten and motivate students toward architecture, construction, engineering, and related careers by providing mentoring opportunities for future designers and constructors.[12] In 2008 Thornton was awarded the Henry C. Turner Prize for Innovation in Construction Technology from the National Building Museum for his work with this program.[13]

Notes

References

  1. ^ http://www.thorntontomasetti.com/93-thornton_tomasetti_is_first_structural_engineering_firm_to_join_the_aia_2030_commitment_for_sustainability
  2. ^ Thornton Tomasetti, Thornton Tomasetti Corporate Website, retrieved 2007-09-30
  3. ^ Forrest Wilson (1975), merging Form in Architecture: Conversations with Lev Zetlin, Boston, Massachusetts: Cahners Books
  4. ^ http://www.uticaod.com/x293547804/Aud-history-The-50s-and-60s
  5. ^ Trevor Jensen, Eli W. Cohen: 1927–2007 (– Scholar search), retrieved 2007-09-30 {{citation}}: External link in |format= (help) [dead link]
  6. ^ Clyde N. Baker Jr., Thoughts on Eli Cohen, archived from the original (– Scholar search) on 2007-06-11, retrieved 2007-09-30 {{citation}}: External link in |format= (help)
  7. ^ Lynn Becker, Thoughts on Eli Cohen, retrieved 2007-09-30
  8. ^ ZweigWhite Information Services, Eli W. Cohen, structural engineering pioneer, retrieved 2007-09-30
  9. ^ Emporis.com, Thornton Tomasetti, retrieved 2007-09-30
  10. ^ https://www.thorntontomasetti.com/weidlinger_associates_thornton_tomasetti_merger/
  11. ^ "Indiana State Fair Commission August 13, 2011 Collapse Incident Investigative Report" (PDF). Indiana State Fair Commission August 13, 2011 Collapse Incident Investigative Report. ThorntonTomasetti BS. Retrieved 25 November 2013.
  12. ^ ACE Mentor Program Archived 2007-11-09 at the Wayback Machine
  13. ^ "Archived copy". Archived from the original on 2011-03-05. Retrieved 2011-03-15.{{cite web}}: CS1 maint: archived copy as title (link)