Skidmore, Owings & Merrill LLP (SOM) is an American architectural, urban planning and engineering firm. It was founded in 1936 by Louis Skidmore and Nathaniel Owings in Chicago. In 1939, they were joined by engineer John Merrill. The firm opened its second office, in New York City, in 1937 and has since expanded, with additional offices in San Francisco, Los Angeles, Washington, D.C., London, Melbourne, Hong Kong, Shanghai, Seattle, and Dubai.
The Citigroup Center is an office skyscraper in the Midtown Manhattan neighborhood of New York City. Built in 1977 for Citibank, it is 915 feet (279 m) tall and has 59 floors with a combined 1.3 million square feet (120,000 m2) of office space. The building was designed by architect Hugh Stubbins, associate architect Emery Roth & Sons, and structural engineer William LeMessurier.
HOK, formerly Hellmuth, Obata + Kassabaum and legally HOK Group, Inc., is an American design, architecture, engineering, and urban planning firm, founded in 1955.
330 North Wabash is a skyscraper in downtown Chicago, Illinois, United States, at 330 N. Wabash Avenue, designed by architect Ludwig Mies van der Rohe. A small bust of the architect by sculptor Marino Marini is displayed in the lobby. The 52-story building is situated on a plaza overlooking the Chicago River. At 695 feet, 330 North Wabash is the second-tallest building by Mies van der Rohe, the tallest being the Toronto-Dominion Bank Tower at Toronto-Dominion Centre. It was his last American building.
The architecture of the Kansas City Metropolitan Area, especially Kansas City, Missouri, includes major works by some of the world's most distinguished architects and firms, including McKim, Mead and White; Jarvis Hunt; Wight and Wight; Graham, Anderson, Probst and White; Hoit, Price & Barnes; Frank Lloyd Wright; the Office of Mies van der Rohe; Barry Byrne; Edward Larrabee Barnes; Harry Weese; and Skidmore, Owings & Merrill.
LeMessurier Consultants is a Boston, Massachusetts firm, founded by William LeMessurier in 1961. It provides engineering support services to architects and construction firms. They focus on advanced structural techniques and impacts to construction materials. They are known for their modular construction techniques including the Mah-LeMessurier System for precast concrete in high-rise housing, the Staggered Truss System for high-rise steel structures, and the tuned mass damper used to reduce tall building motion. One of the best known uses of the damper is the John Hancock Tower in Boston. In addition to new construction, they also work with retrofitting buildings and historic preservation.
Peter DiMaggio is an internationally recognized expert on the design of blast-resistant buildings. He was the lead engineer for construction of the U.S. embassies in Moscow, Berlin and Baghdad. He is currently the co-CEO of engineering firm Thornton Tomasetti.
Simpson Gumpertz & Heger Inc. (SGH) is a privately held ENR 500 engineering firm that designs, investigates, and rehabilitates structures and building enclosures. Their work encompasses commercial, institutional and residential buildings, transportation, water/wastewater, nuclear, science, and defense structure projects throughout the U.S. and over twenty foreign countries. SGH has 625 employees at eight offices in Atlanta, Boston, Chicago, Houston, New York City, Oakland, Southern California and Washington, D.C.
Wiss, Janney, Elstner Associates, Inc. (WJE) is an American corporation of architects, engineers, and materials scientists specializing in the investigation, analysis, testing, and design of repairs for historic and contemporary buildings and structures. Founded in 1956, WJE is headquartered in Northbrook, Illinois, and has over 600 professionals in twenty offices across the United States. WJE personnel are specialized in architectural, structural, and civil engineering; materials conservation, chemistry and petrography, and testing and instrumentation.
Haeundae Doosan We've the Zenith is a complex of three residential towers in the Haeundae District of Busan, South Korea, which was completed in 2011. With 80 floors and a height of 301 m, as of 2022, Tower A is the 22nd-tallest residential building in the world, and is the seventh tallest building in South Korea.
The Ping An Finance Center is a 115-storey, 599.1 m (1,966 ft) supertall skyscraper in Shenzhen, Guangdong, China. The building was commissioned by Ping An Insurance and designed by the American architectural firm Kohn Pedersen Fox Associates. It was completed in 2017, and is the tallest building in Shenzhen, the 2nd tallest building in China and the 5th tallest building in the world. It also broke the record of having the highest observation deck in a building at 562 m (1,844 ft). It is the second largest skyscraper in the world by floor area after Azabudai Hills Main Tower in Tokyo, Japan.
The Indiana State Fair stage collapse was an incident during an August 13, 2011, outdoor concert by Sugarland as part of their Incredible Machine Tour at the Indiana State Fair in which a wind gust from an approaching severe thunderstorm hit the stage's temporary roof structure, causing it to collapse. The structure landed among a crowd of spectators, killing seven people and injuring 58 others.
American Ground: Unbuilding the World Trade Center is a book by William Langewiesche, published in 2002, about the cleanup and recovery effort at the World Trade Center site following the September 11 attacks. Langewiesche embedded with the team managing the search and removal of The Pile, originally writing a series of articles for The Atlantic that were expanded into American Ground.
Weidlinger Associates, Inc., was a U.S.-based structural engineering firm that designs and rehabilitates buildings, bridges, and infrastructure and provides special services in applied science, forensics, and physical security. Weidlinger's clients include corporations, private clients, institutions, and federal, state and local governments. The firm is headquartered in New York City, with branch offices in Massachusetts, Connecticut, New Jersey, California, New Mexico, and Washington, DC. The firm also conducted business as Weidlinger Associates, Ltd., in Scotland, UK.
Magnusson Klemencic Associates is an American structural and civil engineering consulting firm with its headquarters in Seattle, Washington. The company has completed projects worth more than $99 billion in 48 states and 54 countries. Significant MKA projects through its history include the World Trade Center, the Columbia Center, Aqua, the Doha Convention Center Tower, the Olympic Sculpture Park, and Salesforce Tower.
Enclos Corp, referred to as Enclos, is a specialty glazing and exterior facade contractor in the United States. The firm provides design, engineering, fabrication and assembly services for custom curtainwall systems and structural glass facades. Enclos is headquartered in Eagan, Minnesota, and is a subsidiary of CH Holdings USA, Inc.
Since purchasing the Chicago Cubs baseball team and Wrigley Field in 2009, the Ricketts family have been pursuing an extensive renovation of the stadium and the surrounding venue. At its outset, the 1060 Project was projected to cost $575 million and was to be completed in four phases during consecutive off-seasons. Funding was generated from advertising revenue and increased corporate sponsorship in the form of additional signage placed in and around the stadium.
Guy Nordenson is a structural engineer and professor of structural engineering and architecture at Princeton University School of Architecture. Guy has two children, Pierre and Sebastien Nordenson. He attended the Massachusetts Institute of Technology, graduating with a Bachelor of Science in Civil Engineering in 1977, followed by a Masters of Science in Structural Engineering and Structural Mechanics from the University of California at Berkeley in 1978. After graduating from UC Berkeley he worked at Forell/Elsesser Engineers in San Francisco (1978-1982) and Weidlinger Associates in New York City (1982–1987), before establishing the New York office of Ove Arup & Partners in 1987 where he was a director until leaving in 1997 to begin his own structural engineering practice, Guy Nordenson and Associates.
Lev Zetlin was an Israeli-American civil and structural engineer. Founder of the engineering consulting firm Lev Zetlin & Associates, he developed several innovations in structural engineering including the double layer bicycle wheel roof system which he first employed at the Utica Memorial Auditorium and later patented. Zetlin was the structural engineer on 14 pavilions at the 1964–65 New York World's Fair including the New York State Pavilion which utilized his double layer cable suspended roof design.
110 North Wacker, also known as the Bank of America Tower, is a 57-floor skyscraper in Chicago located at 110 North Wacker Drive. It was developed by the Howard Hughes Corporation and Riverside Investment & Development. It was designed by Goettsch Partners with construction by Clark Construction. Structural engineering was by Thornton Tomasetti. A topping-out ceremony was held in September 2019 and the building officially opened in on October 14, 2020.
