Hyatt RegencyWalkway Collapse By Jordan Rodriguez Period 3
Before the Disaster • Construction of the hotel began in 1978 at Kansas City Missouri and it was opened in 1980. One of the building’s main features was its atrium lobby (a multi-story open area with a roof). • Another feature of the hotel were the 3 suspended walkways which were like bridges across the lobby which 2 were above on one another with the 3rd being off to the side.
The Disaster • On July 17th 1981 about 2000 people were in the lobby watching a dance competition. • Dozens of people were packed into the overhead walkways. • During the initial building phase a subtle design change changed 1 support beam that would have helped in supporting the walkways to 2 support beams that did not have proper construction.
The Disaster cont • This caused the walkways to have a extremely difficult time holding up its own weight let alone dozens of people. • A little while after 7:50 PM the walkways collapsed and fell, killing a 114 people in the process and injuring over 200 others.
What could have been done • If the design had not been changed from a single beam to 2 bolted beams the walkways would have been able to support its own dead load plus its live load. • If the Dead load means a static structures own weight without anything like a house with nothing in it. • Live load means a dynamic load which includes live people, furniture and any other additions. Old Design New Design
Aftermath • In the aftermath the Board of Architects, Professional Engineers, and Land Surveyors removed the licenses of the architects and the firm that had designed the building. • Oh and a whole lot of people were sued.
Sources • http://en.wikipedia.org/wiki/Hyatt_Regency_walkway_collapse#Disaster • http://images.search.yahoo.com/search/images/view?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3Fp%3DHyatt%2BRegency%2B%2Bwalkway%2Bcollapse%26ei%3DUTF-8%26fr%3Dyfp-t-100%26x%3Dwrt&w=198&h=225&imgurl=antoine.frostburg.edu%2Fphys%2Finvention%2Fcase_studies%2Fdisasters%2Fimages%2Fkc_walk_collapse.gif&rurl=http%3A%2F%2Fantoine.frostburg.edu%2Fphys%2Finvention%2Fcase_studies%2Fdisasters%2Fkansas_city_walkway.html&size=40kB&name=kc_walk_collapse.gif&p=Hyatt+Regency++walkway+collapse&type=gif&no=2&tt=15&oid=c7dcff3ad9a30220&ei=UTF-8