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Hyatt Regency walkway collapse
The Hyatt Regency hotel walkway collapse occurred at the Hyatt Regency Kansas City in Kansas City, Missouri, United States on Friday, July 17, 1981. Two vertically contiguous walkways collapsed onto a tea dance being held in the hotel's lobby. The falling walkways killed 114 and injured a further 216 people.〔 At the time, it was the deadliest structural collapse in U.S. history, not surpassed until the collapse of the south tower of the World Trade Center in 2001.
==Background==
The construction of the 40-story Hyatt Regency Kansas City began in May 1978. Despite delays and setbacks, including an incident on October 14, 1979 when of the atrium roof collapsed due to the failure of one of the connections at its northern end, the hotel officially opened on July 1, 1980.
One of the defining features of the hotel was its lobby, which incorporated a multistory atrium spanned by elevated walkways suspended from the ceiling. These steel, glass and concrete crossings connected the second, third and fourth floors between the north and south wings. The walkways were approximately long and weighed approximately .〔(【引用サイトリンク】 publisher=Kansas City Public Library )〕 The fourth level walkway aligned directly above the second level walkway.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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