Thornton Tomasetti

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Thornton Tomasetti (formerly The Thornton-Tomasetti Group, Thornton Tomasetti Engineers, LZA Technology) is an 800+ person structural engineering consulting firm headquartered in New York City. Founded in 1956 as Lev Zetlin & Associates, the 50-year old company has office locations throughout the world.

The company has expertise in building structure, building skin, building performance, construction support services, property loss consulting and sustainability. 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. Thornton Tomasetti has collaborated with several architects including Cesar Pelli, Santiago Calatrava, Renzo Piano, and Rafael Vinoly.

Thornton Tomasetti is also committed to advancing sustainable design and construction practices. Approximately one fifth of Thornton Tomasetti’s staff are LEED accredited professionals (LEED AP). Thornton Tomasetti was also the first structural engineering company to sign the AIA 2030 Commitment.[1]

History[edit]

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[edit]

The New York City office essentially began in 1956 as Lev Zetlin & Associates (LZA) by Lev Zetlin upon the completion of his PhD at Cornell University. Lev 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 utilized 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[edit]

Eli Cohen

The Chicago office was created in 1993 when Cohen-Barreto-Marchertas (CBM) was acquired by Thornton Tomasetti. CBM was created in 1965 by Eli Cohen. Under his leadership, CBM pioneered the use of the now common composite steel structural system. This involved the integration of 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 his 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]

Projects[edit]

Skyscrapers and buildings[edit]

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

Stadiums and convention centers[edit]

The New Minneapolis Central Library, designed by César Pelli, completed in 2006

Rehabilitation[edit]

Under construction[edit]

Consultancy[edit]

Community projects[edit]

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.[11] 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.[12]

Notes[edit]

  1. ^ http://www.thorntontomasetti.com/news/press/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, MA: 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 [dead link]
  6. ^ Clyde N. Baker Jr., Thoughts on Eli Cohen (– Scholar search), archived from the original on 2007-06-11, retrieved 2007-09-30 
  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. ^ "ndiana State Fair Commission August 13, 2011 Collapse Incident Investigative Report". Indiana State Fair Commission August 13, 2011 Collapse Incident Investigative Report. ThorntonTomasetti BS. Retrieved 25 November 2013. 
  11. ^ ACE Mentor Program
  12. ^ http://www.nbm.org/support-us/awards_honors/turner-prize/charles-h-thornton.html

External links[edit]