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TYLin
Company typePrivate
IndustryCivil and Structural Engineering
FoundedJune 1, 1954
HeadquartersSan Francisco, California
Key people
  • Matthew G. Cummings, P.E.
  • (President)
  • Man-Chung Tang, Dr., P.E.
  • (Chairman of the Board)
WebsiteOfficial website Edit this at Wikidata

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[edit]

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]

1960s–1970s: 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 50-mile-long (80 km) “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[edit]

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

  • Construction Engineering
  • Construction Support and Inspection
  • Design
  • Design-Build
  • Intelligent Transportation Systems
  • Planning
  • Program Management
  • Wastewater
  • Water Resources

Industries[edit]

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

  • Airports
  • Bridges
  • Buildings
  • Federal Facilities
  • Land Development
  • Ports & Marine
  • Rail & Transit
  • Roadway Systems
  • Water Systems

Projects[edit]

Select project list:

See also[edit]

References[edit]

  1. ^ "T.Y. Lin International website".
  2. ^ King, John (November 18, 2003). "TUNG-YEN LIN, 1912-2003 / An". San Francisco Chronicle.
  3. ^ DeStefano, Jim (December 2003). "T.Y. Lin (1911-2003)" (PDF). Structure Magazine. Archived from the original (PDF) on March 13, 2014.
  4. ^ Swent, Eleanor (2011). The Father of Prestressed Concrete: Oral history transcript by T.Y. Lin and Eleanor Swent. Biblio Balthazar. pp. 204–207.
  5. ^ "Rio Colorado Bridge". HighestBridges.com.
  6. ^ Woo, Elaine (November 11, 2003). "Tung-Yen Lin, 91; Engineer Advocated a Novel Way to Build". Los Angeles Times.
  7. ^ Charles Seim; Santiago Rodriguez (1994). "Golden Gate Seismic Retrofit Project: A reference for approaching the seismic aspects of the Golden Gate Bridge" (PDF). Earthquake Engineering: Tenth World Conference.
  8. ^ "East Span News". San Francisco-Oakland Bay Bridge East Span Seismic Safety Project.
  9. ^ "Airport Master Plan & Capital Improvement Project". Miami International Airport. Retrieved March 12, 2014.
  10. ^ Tang, Man Chung (9 September 2014) (September 9, 2014). "International Bridges: Long Standing". Roads & Bridges. Retrieved May 18, 2015.{{cite web}}: CS1 maint: numeric names: authors list (link)
  11. ^ Cho, Aileen (October 2, 2006). "China's Great Expansion Fuels Boom in High-Profile Designs". Engineering News-Record.
  12. ^ Goodyear, David (October 2012). "Mike O'Callaghan-Pat Tillman Memorial Bridge". Structure magazine. Archived from the original on March 13, 2014.
  13. ^ Fehr, Bradley (February 20, 2010). "New Port Mann Bridge to be widest in Canada". Journal of Commerce. Archived from the original on March 13, 2014.
  14. ^ Newcomb, Tim (August 28, 2013). "How They Built the Record-Setting New Bay Bridge Span". Popular Mechanics.
  15. ^ "Under construction: Engineering the Bay Bridge". UC Berkeley College of Engineering. Retrieved March 12, 2014.
  16. ^ Stelsel, CAE, Kirk (June 2019). "Beauty and Durability Shine with Samuel De Champlain Bridge". Precast Magazine. Retrieved July 29, 2019.
  17. ^ "TYLin News + Views Issue Three 2023 by TYLin - Issuu". issuu.com. September 20, 2023. Retrieved May 10, 2024.
  18. ^ "Engineering Design Contract Awarded for ADB-Supported Bataan–Cavite Bridge Project in the Philippines". Asian Development Bank. October 22, 2020. Retrieved November 29, 2020.
  19. ^ "Bayshore Bikeway Project Overview". www.keepsandiegomoving.com. Retrieved December 15, 2020.
  20. ^ Xueshan Liu, Anshuang Liu, Shanping Wei, Zhong Yang (2010). "Construction of the main span s of the Chongqing Caiyuanba Yangtze River Bridge" (PDF). Arch-Bridges.com. Arch-Bridges.com. Retrieved May 17, 2015.{{cite web}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)[permanent dead link]
  21. ^ "New Champlain Bridge Corridor Project, Canada". roadtraffic-technology.com. roadtraffic-technology.com. Retrieved May 19, 2016.
  22. ^ Nader, Marwan (February 2020). "Accelerated Bridge Construction of the New Samuel De Champlain Bridge". Journal of Bridge Engineering. 25 (2). doi:10.1061/(ASCE)BE.1943-5592.0001515. S2CID 213058473.
  23. ^ "CTA Red & Purple Modernization: About the Program". CTA. Retrieved December 15, 2020.
  24. ^ "StackPath". www.masstransitmag.com. Retrieved December 15, 2020.
  25. ^ Tim, Bruns (May 13, 2020). "Pedestrian Bridge Over Scioto River Connects City Life of Dublin, Ohio". Roads & Bridges. Roads & Bridges.
  26. ^ "The Dublin Link". The Bridge Street District, City of Dublin.
  27. ^ Li, Xiaogang; Ding, Peng; Chen, Xiaohu; Liu, Anshuang; Qi, Yong (March 26, 2019). "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): 523–534. doi:10.1177/1461348419838713. ISSN 1461-3484.
  28. ^ "Port Everglades Expansion Eller Drive Overpass". PortEverglades.net.
  29. ^ "Tylin International wins tender for construction of the Fourth Bridge". No. 29 January 2016 Economy. La Estrella de Panama. January 29, 2016. Retrieved May 19, 2016.
  30. ^ "Santa Fe DDI". Retrieved February 3, 2017.
  31. ^ "THE PROJECT - Connecting Miami I-395 / SR 836 / I-95 Design Build". I-395/SR 836/I-95 Design Build Project. Retrieved January 4, 2021.
  32. ^ "I Street Bridge Replacement - City of Sacramento". www.cityofsacramento.org. Retrieved October 26, 2020.
  33. ^ "Spring in Sacramento - Bridge Design & Engineering (Bd & e)". www.bridgeweb.com. June 12, 2020. Retrieved October 26, 2020.
  34. ^ "Illinois Department of Transportation — The Joliet Gateway Center". America's Transportation Awards. August 9, 2019. Retrieved January 4, 2021.
  35. ^ "New Kenneth F. Burns Memorial Bridge Project". MassDOT Project Kenneth F Burns Memorial Bridge.
  36. ^ "LAWA Official Site | News Release | May 29, 2020". www.lawa.org. Retrieved January 4, 2021.
  37. ^ "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". T.Y. Lin International Group. Retrieved January 4, 2021.
  38. ^ Fining, Brittany (Winter 2011). "Gold Award Winner: Miami International Airport's North Terminal" (PDF). Owners Perspective Magazine. Archived from the original (PDF) on October 31, 2012. Retrieved May 15, 2015.{{cite web}}: CS1 maint: numeric names: authors list (link)
  39. ^ "Navy Pier Flyover | Home | Enhancing Chicago's Lakefront Trail". Navy Pier Flyover. Retrieved September 4, 2020.
  40. ^ "Niagara Transformed". American Society of Civil Engineers. March 2020. Retrieved August 31, 2020.
  41. ^ "Best Renovation/Restoration: Niagara Falls State Park Rehabilitation". Engineering News-Record. March 7, 2019. Retrieved August 31, 2020.
  42. ^ 2019-04-26T13:43:13+01:00. "Second metro line opens in Panamá City". Railway Gazette International. Retrieved November 9, 2020.{{cite web}}: CS1 maint: numeric names: authors list (link)
  43. ^ "Award of Merit, Rail: Linea 2 Metro Panama". www.enr.com. Retrieved November 9, 2020.
  44. ^ "Port Mann Bridge / Highway 1 Project - Verdict Traffic". www.roadtraffic-technology.com. Retrieved November 9, 2020.
  45. ^ "Sellwood Bridge Replacement Project". SellwoodBridge.org. Multnomah County. Retrieved February 3, 2017.
  46. ^ "Kuwait's Sheikh Jaber al-Ahmad Al-Sabah Causeway opens". World Highways. Retrieved November 20, 2020.
  47. ^ "Sheikh Jaber Al Ahmed Al Sabah Causeway, the world's biggest maritime causeway project". www.roadtraffic-technology.com. Retrieved November 20, 2020.
  48. ^ College, Trident Technical. "S.C. Aeronautical Training Center". www.tridenttech.edu. Retrieved November 20, 2020.
  49. ^ Wren, David. "SC's new aeronautical center a place to train and inspire". Post and Courier. Retrieved November 20, 2020.
  50. ^ Bates (10 October 2013), Joe. "Project Watch - Taiwan Taoyuan International Airport". Airport World Magazine. Retrieved April 29, 2015.{{cite web}}: CS1 maint: numeric names: authors list (link)
  51. ^ "Best Project, Airport/Port: Tocumen International Airport Expansion Program". www.enr.com. Retrieved September 4, 2020.
  52. ^ T.Y. Lin International (April 8, 2014). "Design Concept of the Twin River Bridges in Chongqing". {{cite journal}}: Cite journal requires |journal= (help)
  53. ^ Tang, Man-Chung (2011). "Design concept of the Twin River Bridges in Chongqing, China". Frontiers of Architecture and Civil Engineering in China. 5 (4): 427–431. doi:10.1007/s11709-011-0134-6. S2CID 111258721. Retrieved November 23, 2020.
  54. ^ Morcos (2 August 2010), Johnny. "CITY STREETS: A Second Wind". Roads & Bridges. Retrieved April 29, 2015.{{cite web}}: CS1 maint: numeric names: authors list (link)

External links[edit]

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