Cantor Seinuk receives awards.The Cantor Seinuk Group won a Grand Award in the 1993 Engineering Excellence Awards Competition, sponsored by the American Consulting Engineers Council (ACEC ACEC American Council of Engineering Companies (formerly American Consulting Engineers Council)ACEC American Consulting Engineers Council (now American Council of Engineering Companies) ). The firm was cited for its innovative structural engineering design of the John D. Jr. and David Rockefeller David Rockefeller, Sr. (born June 12, 1915) is a prominent American banker, philanthropist, world statesman, and the current patriarch of the Rockefeller family. He is the youngest and only surviving child and grandchild, respectively, of the prominent philanthropist John D. Research Building in New York City New York City: see New York, city. New York City City (pop., 2000: 8,008,278), southeastern New York, at the mouth of the Hudson River. The largest city in the U.S. , it was announced at the ACEC's Annual Convention held May 4 in Los Angeles Los Angeles (lôs ăn`jələs, lŏs, ăn`jəlēz'), city (1990 pop. 3,485,398), seat of Los Angeles co., S Calif.; inc. 1850. . The Cantor Seinuk Group had already received a first prize for the project in the regional competition, as well as a second prize for its structural design of the skyscraper skyscraper, modern building of great height, constructed on a steel skeleton. The form originated in the United States. Development of the Form Many mechanical and structural developments in the last quarter of the 19th cent. , 450 Lexington Avenue, also in New York City. Design of the Rockefeller Institute laboratory building required bridging a 15-story structure over the FDR Drive along Manhattan's East River. Four funicular arches were employed to carry the structure over the highway. They were constructed on four consecutive nights to avoid disruption of the traffic below, from a 120-ton capacity barge-based crane in the river. Spaced 30 feet on center, they span 90 feet, and stand 33 feet high from spring line to crown. The funicular shape was created in order to limit the forces to axial compression axial compression Orthopedics A type of force, especially of the foot and vertebral column, in which body weight falls centrally on a particular bone. See Compression fracture. only in the segments of the arch with very limited moment forces. The arches are supported on two V-shaped columns spaced 60 feet apart between the highway edge and the river. The top of each leg of the "V" acts as support for one arch. The 'relatively light' arches were fabricated in Quebec, Canada, of segmented conventional rolled steel sections. The bottom tension chords doubled as the first supporting steel floor above the highway providing a totally free column space floor. The Cantor Seinuk Group's second prize NYACE NYACE New York Association of Consulting Engineers regional award for the innovative structural design of the one million square foot, 34-story building at 450 Lexington, involved the challenge of placing a new building through the center of an existing structure, in this case, the Grand Central Post Office, built in 1906. Because the post office lay entirely on top of solidly packed rail lines, the construction of a conventional foundation was impossible. |
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