Notre Dame Cathedral after the fire was pointed out that it would collapse if the wind blew.


by

Jean-Pierre Dalbéra

Notre Dame Cathedral in Paris, France, where a large-scale fire occurred on April 15, 2019, and the roof was burned down, the exterior wall was spared by the fire extinguishers' efforts to squeeze all the fire And the main gate has left an impression before the fire occurred. However, it has been found that the intensity has dropped significantly after a fire investigation, and experts have warned that 'a strong wind can blow it and cause it to collapse.'

Notre-Dame fragilisée au point de ne plus pouvoir résister à des vents de 90 km / h
http://www.lefigaro.fr/culture/notre-dame-fragilisee-au-point-de-plus-pouvoir-resister-a-des-vents-de-90-km-h-20190425

Wakened Notre-Dame 'could collapse in winds of over 90km / h' claims Paris engineer-The Local
https://www.thelocal.fr/20190426/weakened-notre-dame-could-not-withstand-a-major-storm-claims-paris-engineer

Notre Dame is unstable: a strong wind could make the walls collapse, independent report says | The Art Newspaper
https://www.theartnewspaper.com/analysis/notre-dame-is-unstable

The Notre Dame Cathedral, a UNESCO World Heritage Site, is also called “White Lady” because of its beauty, and it is a starting point for representing the distance from Paris to other places, a landmark that symbolizes Paris. was. For this reason, the news that the steeple of Notre Dame Cathedral was burned off by a large-scale fire that occurred on April 15, 2019 brought great shaking not only in Paris but also throughout France. .

The situation at the time of the fire can be understood by looking at the following articles.

A photo & movie summary of a large fire that happened at Notre Dame Cathedral-GIGAZINE



Paolo Vannucci, a professor of architectural engineering at the University of Versailles, told French news media Le Figaro that 'the results of the damage investigation showed that the Notre Dame Cathedral had a 60% reduction in resistance to wind' Yes. This is because most of the vaults , the arched structures supporting the Notre Dame Cathedral, were burned down or damaged by fire.


by

Lynette Chea

A vault is an arched structure connecting the ceiling and wall of Notre Dame, not only to convey the weight of the roof to the outer wall, but also disperse the horizontal force received from wind etc. to the auxiliary wall of buttress I played a role.



As a result of the loss of this vault, it was able to withstand a strong wind of about 61 m / s before the fire, but after the fire it was broken by the wind of about 25 m / s. Of. Paris is located in an area where earthquakes are unlikely to occur worldwide, but it is often hit by strong winds. For example, in the storm 'Eleanor' that occurred in January 2018, winds of about 33 m / s or more were recorded .

Corresponds to the House of Representatives of the French National Assembly national conference is May 10, 2019, we passed a special law that incorporates such as to repair the Notre Dame Cathedral within five years. It is expected to pass the Senate , the Senate, on May 27. Architects Philippe Villeneuve, who directs the restoration of Notre Dame Cathedral, told news media The Local , 'The top priority is to protect the cathedral.'

in Note, Posted by log1l_ks