The distinctive floating tower (renamed 601 Lexington Avenue in 2009) became a scary 59-story lesson for architects, engineers, public officials, lawyers and journalists worldwide. Secondly, Diane Hartley was taken at granted when she contacted the Citicorp's firm. When the Citicorp story broke in 1995, Hartley did not believe she was the undergraduate student LeMessurier referenced. Talk:Citigroup Center. Due to the relatively light weight, building sway was a serious concern that LeMessurier addressed in the design phase. She found out that the building is weak against quartering winds from her study and calculation. The result was the $175-million, 59-story Citicorp Center. The building was particularly vulnerable to quartering winds (winds that strike the building at its corners). Citicorp Center standing over St. Peter's church Horrified, LeMessurier fled to his island hideaway on Sebago Lake to refine the findings and consider his options. She was correct, and Hurricane Ella fit the requirements to do it. The Citicorp Center Project: LeMessurier Stands Tall by Michael J. Vardaro, Esquire and Timothy F. Hegarty, Esquire Introduction The Citicorp Center (now known as the Citigroup Center) is one of the most recognizable features of the New York City skyline.1 The distinctive 45° angled top rises 915 feet into the air. Rather than distribute weight ... when LeMessurier got a call from a Princeton engineering student named Diane Hartley. This shows how sometimes women are overlooked in engineering, and this unconscious discriminating ideas male engineers could have. Why couldn't the columns of the Citicorp center be built on the buildings corners? It was revealed in 2014 that the student who called William LeMessurier was Diane Lee Hartley. The distinctive 45° angled top rises 915 feet into the air. The BBC aired a special on the Citicorp Center crisis, and one of its viewers was Diane Hartley. The 915-ft-tall building, completed in 1977 and designed by LeMessurier Consultants (called LeMessurier At approximately 25,000 tons, the steel superstructure is considerably lighter than other skyscrapers of similar size. The BBC aired a special on the Citicorp Center crisis, and one of its viewers was Diane Hartley. Due to the relatively light weight, building sway was a serious concern that LeMessurier addressed in the design phase. Her paper focused on the Citicorp Center, a skyscraper in midtown Manhattan. And after weeks poring over the building’s plans, she’d stumbled on a potentially deadly mistake. The BBC aired a special on the Citicorp Center crisis, and one of its viewers was Diane Hartley. Citigroup Center is remarkable New York architecture, with an engineering story even more dramatic than its photographs. (Courtesy of Diane Hartley) According to LeMessurier, in 1978 he got a phone call from an undergraduate architecture student making a bold claim about LeMessurier’s building. After discussing the new skyscraper with her professor, she called to notify him of a fatal design flaw in Citicorp. The Citicorp Center, completed in 1977, reportedly cost an estimated $195 million. The Citicorp Center, completed in 1977, reportedly cost an estimated $195 million. built in 1977 to house the headquarters of citibank , it is 915 feet (279 m) tall and has 59 floors with 1.3 million square feet (120,000 m 2 ) of office space. Diane Hartley, a undergraduate student from Priceton University take Citicorp building as her thesis case study. The Citicorp Center (now known as the Citigroup Center) is one of the most recognizable features of the New York City skyline. It turns out that she was the student in LeMessurier's story. After weeks of poring over the Citicorp Center’s building plans, she’d stumbled on an oversight that threatened to topple the 59-story tower into one of New York City’s most densely populated districts. Language; Watch; Edit; Active discussions This article is of interest to the following WikiProjects: WikiProject Architecture (Rated C-class, High-importance) This article is within the scope of WikiProject Architecture, a collaborative effort to improve the coverage of Architecture on Wikipedia. Alex Gendler digs into the skyscraper’s potentially deadly mistake. She questioned LeMessurier’s junior engineers about her findings but they replied that the building is more safer than her calculation. Normally, buildings are strongest at their corners, and it’s the perpendicular winds (winds that strike the building at its face) that cause the greatest strain. (Whitbeck) III. It turns out that she was the student in LeMessurier's story. Completed in 1977 in New York, United States. It turns out that she was the student in LeMessurier’s story. The flaw made the 59-story skyscraper particularly vulnerable to being toppled by strong winds.1 Thinking that her calculations were wrong, Diane Hartley contacted the office of the… The citigroup center (formerly citicorp center and also known by its address, 601 lexington avenue) is an office skyscraper in the midtown manhattan neighborhood of new york city. The Citicorp Center opened in 1977 to great acclaim, and LeMessurier’s tuned mass damper began to draw interest from designers of other skyscrapers. She never spoke with LeMessurier; rather, she spoke with one of his junior staffers. The Citicorp building is built on huge stilts placed at the center of the sides instead of at the corners as conventionally done. In 1978, Diane Hartley was writing her undergraduate architecture thesis when she made a shocking discovery. 1. In conjunction with the Red Cross and NYPD, the building was emergency retrofitted in the middle of the … In 1978, Diane Hartley was writing her undergraduate architecture thesis when she made a shocking discovery. At approximately 25,000 tons, the steel superstructure is considerably lighter than other skyscrapers of similar size. Hartley wanted something that was tall, unique and in a dense, urban environment. When it opened back in 1977, this 59-story structure was considered to be an engineering marvel. She chose the recently opened Citicorp Center (now the Citigroup Center) in Manhattan, as it met all of her criteria. It turns out that she was the student in LeMessurier’s story. The building that’s the main topic of today’s story is known to most people as the Citicorp Center, although since Citicorp no longer owns it, its official name is really 601 Lexington Avenue. He told LeMessurier that Citicorp Center could blow over in the wind. (Telephone interview June 30, 2010.) Responsibilities But in June 1978, Princeton University engineering student Diane Hartley wrote an un-dergraduate thesis challenging how well the building would do facing quartering winds, the winds that strike a building on its corners. The BBC aired a special on the Citicorp Center crisis, and one of its viewers was Diane Hartley. The Citicorp Center repair is a classic engineering case study of how mistakes must be avoided in engineering and construction of public works. Alex Gendler digs into the skyscraper’s potentially deadly mistake. This article was originally published on November 5, 2014. After weeks of poring over the Citicorp Center’s building plans, she’d stumbled on an oversight that threatened to topple the 59-story tower into one of New York City’s most densely populated districts. The 59-story, nearly 1.6 million gross square foot, Citicorp Center tower completed during 1977 in mid-town Manhattan was designed by the much … Undergraduate student Diane Hartley may have saved the Citicorp Center building in Manhattan from falling down and taking with it other buildings in a domino effect. LeMessurier claimed to have spoken directly with a male undergraduate student writing his senior thesis on the Citicorp building that was under construction. In 1978, Diane Hartley was writing her undergraduate architecture thesis when she made a shocking discovery. Le Messurier, when told about the miscalculations errors, was unaware of the gender of the student and assumed it was a boy. Implications of a Major Urban Office Complex: The Scientific, Social and Symbolic Meanings of Citicorp Center, New York City - V. 1 and 2 Authors: Hartley, Diane Lee In 1978, the architects behind the Citicorp center received a phone call from an undergraduate architectural student named Diane Hartley who had calculated that in the right storm, the building could very well collapse. But this was not a normal building. David Billington, Diane Hartley’s undergraduate thesis advisor reports that because the columns or “legs” of the Citicorp Tower were in the middle of each side, rather than at the building’s corners, he, too, had specific concerns about the effects of quartering winds. In 1978, a civil-engineering student at Princeton University discovered a shocking design flaw while studying the Manhattan Citicorp Tower for her senior thesis. 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