T. Y. Lin International Explained

TYLin
Type:Private
Foundation:June 1, 1954
Industry:Civil and Structural Engineering
Location:San Francisco, California
Key People:
  • Matthew G. Cummings, P.E.
  • (President)
  • Man-Chung Tang, Dr., P.E.
  • (Chairman of the Board)

TYLin is a global, multi-disciplinary infrastructure services firm. Headquartered in San Francisco, TYLin established its business in the design of long-span bridges and specialty structures.

The firm provides a range of planning, design, construction and project management services to the aviation; bridge; facilities; mobility, planning, and management; ports and marine; rail and transit; and surface transportation industries. TYLin operates from more than 50 regional centers across four continents, and employs a professional staff of more than 3,000 engineers, planners, architects and scientists.[1]

History

1950s: T.Y. Lin International was founded on June 1, 1954, by Tung-Yen Lin, a Chinese-American structural engineer recognized worldwide as an innovator in bridge design, engineering, and construction. Lin is credited with standardizing the practical use of prestressed concrete. He is also known for his emphasis on the structural aesthetics aspect of engineering, regardless of a project's economic limitations.[2] [3]

1960s1970s: Lin continued to expand his firm's specialty in prestressed concrete to broader consulting services, with projects that included conventionally reinforced concrete, structural steel, masonry, and timber-framed structures. In 1967, he designed the 18-story shear wall Bank of America building in Managua, Nicaragua. The reinforced concrete tower was one of only two structures left standing after the country's 1972 earthquake.[4] Lin also became known for his design innovations, such as the Rio Colorado Bridge, an upside-down suspension bridge spanning a deep gorge in Costa Rica.[5] In the early '70s, the firm also established offices in Taiwan and Singapore.

1980s: T.Y. Lin International expanded with new offices in Kuala Lumpur and a merger with Maine-based Hunter-Bellow Associates in the U.S. In 1986, when U.S. President Ronald Reagan presented Lin with the National Medal of Science, he responded by handing the former president a detailed plan for a 50adj=midNaNadj=mid “Intercontinental Peace Bridge” connecting Alaska and Siberia across the Bering Strait.[6] In 1989, T.Y. Lin International was acquired by the Dar Group, an international network of professional service firms located in 45 countries.

1990s: Following the Loma Prieta earthquake in California in late 1989, T.Y. Lin International helped in the development of advanced techniques, engineering tools, and design standards for bridge assessment, the seismic retrofit of existing structures,[7] and the design of new bridges.[8] The firm also completed several acquisitions, including California-based McDaniel Engineering, Chicago-based BASCOR, Washington State's DGES Consulting Engineering, and New York's DRC Consultants. Additionally, the firm opened a new Asia-Pacific office in Chongqing, China.

2000s: U.S. expansion continued with the acquisition of Miami-based H.J. Ross Associates, Inc., Northern California's CCS Planning and Engineering, multi-location FRA Engineering and Architecture, and Medina Consultants on the East Coast. The acquisitions strengthened the firm's services in the areas of ITS/traffic engineering and transportation engineering through its aviation and rail and transit line of businesses for such projects as Miami International Airport's expansion project.[9] In Asia, T.Y. Lin International oversaw the design of major bridges in China's fast-growing central region,[10] including the Shibanpo Bridge and the Caiyunba Bridge in Chongqing, and the Second Wujiang Bridge in Fulin.[11]

2010s: T.Y. Lin International oversaw the design of 25 elevated bridges across Taiwan for the island's new High Speed Rail system and the Hoover Dam Bypass Bridge, which is downstream of the Hoover Dam;[12] the Port Mann Bridge in British Columbia; Canada (2012);[13] the new Eastern Span of the San Francisco-Oakland Bay Bridge (2013)[14] [15] and the Champlain Bridge, Montreal (2019-present),[16] also called the Samuel De Champlain Bridge, in Montreal, Quebec, Canada.

2020s: In 2023, T.Y. Lin was awarded Lead Designer in a progressive design build (PDB) contract to develop, design, and construct a replacement of two 2-lane bridges over a 10-mile segment of highway between Mobile, Alabama and Spanish Fort, Alabama.[17]

Services

TYLin provides services on all phases of project development and delivery, including:

Industries

TYLin provides services within all major sectors of the infrastructure industry, including:

Projects

Select project list:

See also

Notes and References

  1. Web site: T.Y. Lin International website.
  2. News: King. John. TUNG-YEN LIN, 1912-2003 / An. San Francisco Chronicle. 18 November 2003.
  3. News: DeStefano . Jim . T.Y. Lin (1911-2003) . Structure Magazine . December 2003 . dead . https://web.archive.org/web/20140313001649/http://www.structuremag.org/OldArchives/2003/december_january/greatachievements.pdf . March 13, 2014 . mdy-all .
  4. Book: Swent, Eleanor. The Father of Prestressed Concrete: Oral history transcript by T.Y. Lin and Eleanor Swent. 2011. Biblio Balthazar. 204–207.
  5. Web site: Rio Colorado Bridge. HighestBridges.com.
  6. News: Woo. Elaine. Tung-Yen Lin, 91; Engineer Advocated a Novel Way to Build. Los Angeles Times. 11 November 2003.
  7. News: Golden Gate Seismic Retrofit Project: A reference for approaching the seismic aspects of the Golden Gate Bridge. Earthquake Engineering: Tenth World Conference. 1994. Charles Seim. Santiago Rodriguez.
  8. Web site: East Span News. San Francisco-Oakland Bay Bridge East Span Seismic Safety Project.
  9. Web site: Airport Master Plan & Capital Improvement Project. Miami International Airport. 12 March 2014.
  10. Web site: Tang. Man Chung (9 September 2014). International Bridges: Long Standing. September 9, 2014. Roads & Bridges. May 18, 2015.
  11. News: Cho. Aileen. China's Great Expansion Fuels Boom in High-Profile Designs. Engineering News-Record. 2 October 2006.
  12. News: Goodyear. David. Mike O'Callaghan-Pat Tillman Memorial Bridge. Structure magazine. October 2012. dead. https://web.archive.org/web/20140313003929/http://www.structuremag.org/article.aspx?articleID=1549. March 13, 2014. mdy-all.
  13. News: Fehr. Bradley. New Port Mann Bridge to be widest in Canada. Journal of Commerce. 20 February 2010. dead. https://web.archive.org/web/20140313013719/http://www.journalofcommerce.com/article/id37641/roadbuilding. March 13, 2014. mdy-all.
  14. News: Newcomb. Tim. How They Built the Record-Setting New Bay Bridge Span. Popular Mechanics. 28 August 2013.
  15. Web site: Under construction: Engineering the Bay Bridge. UC Berkeley College of Engineering. 12 March 2014.
  16. News: Stelsel, CAE . Kirk . Beauty and Durability Shine with Samuel De Champlain Bridge . July 29, 2019 . Precast Magazine . June 2019.
  17. Web site: 2023-09-20 . TYLin News + Views Issue Three 2023 by TYLin - Issuu . 2024-05-10 . issuu.com . en.
  18. News: Engineering Design Contract Awarded for ADB-Supported Bataan–Cavite Bridge Project in the Philippines. October 22, 2020 . Asian Development Bank . November 29, 2020.
  19. Web site: Bayshore Bikeway Project Overview. 2020-12-15. www.keepsandiegomoving.com.
  20. Web site: Xueshan Liu, Anshuang Liu. Shanping Wei, Zhong Yang (2010). Construction of the main span s of the Chongqing Caiyuanba Yangtze River Bridge. Arch-Bridges.com. Arch-Bridges.com. 17 May 2015.
  21. Web site: New Champlain Bridge Corridor Project, Canada. roadtraffic-technology.com. roadtraffic-technology.com. 19 May 2016.
  22. Nader. Marwan. February 2020. Accelerated Bridge Construction of the New Samuel De Champlain Bridge. Journal of Bridge Engineering. 25. 2 . 10.1061/(ASCE)BE.1943-5592.0001515. 213058473.
  23. Web site: CTA Red & Purple Modernization: About the Program. 2020-12-15. CTA. en.
  24. Web site: StackPath. 2020-12-15. www.masstransitmag.com.
  25. Web site: Tim . Bruns . Pedestrian Bridge Over Scioto River Connects City Life of Dublin, Ohio . Roads & Bridges . May 13, 2020 . Roads & Bridges.
  26. Web site: The Dublin Link . The Bridge Street District, City of Dublin.
  27. Li. Xiaogang. Ding. Peng. Chen. Xiaohu. Liu. Anshuang. Qi. Yong. 2019-03-26. Dynamic response analysis of the wind–train–bridge coupling based on the stiffness change of the long-span track bridge. Journal of Low Frequency Noise, Vibration and Active Control. 39. 3. en. 523–534. 10.1177/1461348419838713. 1461-3484. free.
  28. Web site: Port Everglades Expansion Eller Drive Overpass. PortEverglades.net.
  29. News: Tylin International wins tender for construction of the Fourth Bridge. 19 May 2016. 29 January 2016 Economy. La Estrella de Panama. 29 January 2016.
  30. Web site: Santa Fe DDI. 3 February 2017.
  31. Web site: THE PROJECT - Connecting Miami I-395 / SR 836 / I-95 Design Build. 2021-01-04. I-395/SR 836/I-95 Design Build Project. en-US.
  32. Web site: I Street Bridge Replacement - City of Sacramento. 2020-10-26. www.cityofsacramento.org.
  33. Web site: 2020-06-12. Spring in Sacramento - Bridge Design & Engineering (Bd & e). 2020-10-26. www.bridgeweb.com. en.
  34. Web site: 2019-08-09. Illinois Department of Transportation — The Joliet Gateway Center. 2021-01-04. America's Transportation Awards. en.
  35. Web site: New Kenneth F. Burns Memorial Bridge Project. MassDOT Project Kenneth F Burns Memorial Bridge.
  36. Web site: LAWA Official Site News Release May 29, 2020. 2021-01-04. www.lawa.org.
  37. Web site: T.Y. Lin International Group News T.Y. Lin International Announces Completion of LAWA Utility and Landside Access Modernization Program Enabling Project at Los Angeles International Airport. 2021-01-04. T.Y. Lin International Group.
  38. Web site: Fining. Brittany (Winter 2011). Gold Award Winner: Miami International Airport's North Terminal. Owners Perspective Magazine. 15 May 2015. https://web.archive.org/web/20121031055628/http://www.miami-airport.com/pdfdoc/clips_owners-perspective.pdf. October 31, 2012. dead. mdy-all.
  39. Web site: Navy Pier Flyover Home Enhancing Chicago's Lakefront Trail. 2020-09-04. Navy Pier Flyover. en-US.
  40. Web site: March 2020. Niagara Transformed. August 31, 2020. American Society of Civil Engineers.
  41. News: March 7, 2019. Best Renovation/Restoration: Niagara Falls State Park Rehabilitation. Engineering News-Record. August 31, 2020.
  42. Web site: 2019-04-26T13:43:13+01:00. Second metro line opens in Panamá City. 2020-11-09. Railway Gazette International. en.
  43. Web site: Award of Merit, Rail: Linea 2 Metro Panama. 2020-11-09. www.enr.com. en.
  44. Web site: Port Mann Bridge / Highway 1 Project - Verdict Traffic. 2020-11-09. www.roadtraffic-technology.com.
  45. Web site: Sellwood Bridge Replacement Project. SellwoodBridge.org. Multnomah County. 3 February 2017.
  46. Web site: Kuwait's Sheikh Jaber al-Ahmad Al-Sabah Causeway opens. 2020-11-20. World Highways. en.
  47. Web site: Sheikh Jaber Al Ahmed Al Sabah Causeway, the world's biggest maritime causeway project. 2020-11-20. www.roadtraffic-technology.com.
  48. Web site: College. Trident Technical. S.C. Aeronautical Training Center. 2020-11-20. www.tridenttech.edu. en.
  49. Web site: Wren. David. SC's new aeronautical center a place to train and inspire. 2020-11-20. Post and Courier. en.
  50. Web site: Bates (10 October 2013). Joe. Project Watch - Taiwan Taoyuan International Airport. Airport World Magazine. 29 April 2015.
  51. Web site: Best Project, Airport/Port: Tocumen International Airport Expansion Program. 2020-09-04. www.enr.com. en.
  52. T.Y. Lin International. Design Concept of the Twin River Bridges in Chongqing. April 8, 2014.
  53. Design concept of the Twin River Bridges in Chongqing, China. 2020-11-23. Frontiers of Architecture and Civil Engineering in China. 2011. 10.1007/s11709-011-0134-6. Tang. Man-Chung. 5. 4. 427–431. 111258721.
  54. Web site: Morcos (2 August 2010). Johnny. CITY STREETS: A Second Wind. Roads & Bridges. 29 April 2015.

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