Jump to content


Photo

Morandi Bridge


  • Please log in to reply
5 replies to this topic

#1 Priscilla II

Priscilla II

    Advanced Member

  • Advanced Members
  • PipPipPip
  • 853 posts

Posted 15 August 2018 - 11:32 AM

One very lucky truckie.

qyiaoSb.jpg

 


  • 0

#2 Fish

Fish

    Advanced Member

  • Advanced Members
  • PipPipPip
  • 2,770 posts

Posted 15 August 2018 - 03:32 PM

That would be a legitimate time to soil your pants as an adult I think.

 

I'm no expert on structures, but lots of skinny, very tall bridge piles without lateral bracing doesn't instill a sense of confidence in me.

 

Apparently the bridge is 50 odd years old, but was re-furb'ed two years ago, and that the general community had reservations about driving over it. Hard to tell how wide spread the community concern was after the fact. It is fair to say that motorway bridges should not fall down. Maybe in very large earthquakes, perhaps, but just fall down, that shouldn't happen...


  • 0

#3 Fish

Fish

    Advanced Member

  • Advanced Members
  • PipPipPip
  • 2,770 posts

Posted 15 August 2018 - 03:41 PM

The 1,182-metre structure was inaugurated in 1967 and went through major reinforcement work in the 1990s.

Ansa cited a 2011 report by Autostrade per l'Italia, the Italian highways company, as saying that the bridge had been suffering from decay. 

"Queues of cars and the volume of traffic provoke intense decay of the Morandi viaduct structure on a daily basis in the rush hours as it is subject to major demands," the report said, adding that the bridge was for this reason in need for continuous maintenance work.

Il Sole 24 Ore, Italy's financial newspaper, reported that the company had launched a 20-million euro call for tenders in April 2018 for "structural retrofitting" of the bridge.

The document said piers nine and 10 - the vertical structures holding the bridge up - were to be reinforced, while pier 11 had been strengthened in the 1990s.

After a pre-selection of the companies came to an end on June 11, winners would be selected by September. Pier nine was involved in today's collapse, according to the newspaper.

and

A bystander, Pietro M., told Ansa news agency he saw "lightning strike the bridge" just before the collapse, as a wave of bad weather was sweeping through Italy at the time.

https://www.aljazeer...4220305496.html

 

Looks like they knew pier 9 needed strengthening, they just didn't get around to it in time...

 

A better view of what the piers and the spindly legs look like. I see the bridge in the background has even spindlier legs...

Attached File  8a54a56a7dd8442ab079643561b540a5_18.jpg   653.26KB   0 downloads


  • 0

#4 Puff

Puff

    Advanced Member

  • Advanced Members
  • PipPipPip
  • 3,787 posts

Posted 15 August 2018 - 07:27 PM

100's of bridges in Italy just like it and in the same condition


  • 0

"Never attribute to malice that which is adequately explained by stupidity"


#5 rossd

rossd

    Advanced Member

  • Advanced Members
  • PipPipPip
  • 255 posts
  • LocationRaglan NZ

Posted 16 August 2018 - 07:50 PM

Just got back from a trip through italy. Went over lots of old rail Bridges through the alps . Some looked like they dated from the 30s or earlier , maybe they knew how to build them back then nothing to fancy.
  • 0

#6 Priscilla II

Priscilla II

    Advanced Member

  • Advanced Members
  • PipPipPip
  • 853 posts

Posted 16 August 2018 - 08:21 PM

Here are some pictures of the strengthening work that had been carried out on the bridge previously.

The original suspension cables are encased in the concrete tendons with no opportunity to observe corrosion.

The portion of the bridge that failed had not been strengthened apart from bracketing to the upper portion.

x2dboE6.jpg

TMFzqTX.jpg

KaYinly.jpg


  • 0




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users