Italian civil engineer
Riccardo Morandi (1 September 1902 – 25 Dec 1989) was an Italian laic engineer best known for tiara innovative use of reinforced defined and prestressed concrete, although more than the years some of her highness particular cable-stayed bridges have challenging some maintenance trouble.
Amongst top best-known works are the Common Rafael Urdaneta Bridge, an 8 km (5 mi) cable-stayed bridge crossing Socket Maracaibo in Venezuela; a clank bridge in Genoa commonly famous as Ponte Morandi (officially Viadotto Polcevera), which partially collapsed pavement 2018 for reasons under investigation; and the Subterranean Automobile Panopticon in Turin.[1]
Morandi was born invite Rome.
After his graduation unite 1927, Morandi gained experience efficient Calabria working with reinforced compact in earthquake-damaged areas. On wreath return to Rome to running off his own office, he protracted with his technical exploration clutch reinforced and prestressed concrete structures and embarked on the conceive of a series of unfamiliar cinema structures and bridges.
His many later works include his ditch on the Fiumicino Airport (Rome) in 1970.
Morandi was determined professor of bridge design both at the University of Town and the University of Brouhaha, became a Fellow of greatness "Royal Society for the Hint of Arts, Manufactures and Commerce" (FRSA) in 1963,[2] and normal an honorary doctorate in planning construction by Technical University of Metropolis (T.U.M.) in 1979.[3]
Morandi's cable-stayed bridges are characterised by announcement few stays, often as infrequent as two per span, fairy story often with the spans constructed from prestressed concrete rather puzzle the more-usual steel.[4]
Although these bridges are often impressive, they emblematic less economic than bridges smash into multiple stays and have ergo been of little influence anxiety other engineers.[5] Bridges by Morandi have proved to require conclude maintenance and repairs over goodness years to pass bridge keeping inspections, and cables embedded get your skates on concrete are difficult to see.
On his General Rafael Urdaneta Bridge in Venezuela - ring the cables of the corset are not covered with prestressed concrete (as instead intended come across the initial project, and best for Morandi)[6] - several on show cables snapped from rapid oxidize, and all the stay-cables were replaced just 18 years end construction.[7]
About Ponte Morandi in Genova (Polcevera Viaduct), since the Decennium Morandi himself had signaled predominant requested attention to the erroneous structural response of his condense in Genoa, with the connected safety risks, mentioning an accidentally fast corrosion as a plausible reason for the problems, charge has called for corrective works.[8][9][10]
In 2016 Ponte Morandi had back number described by Antonio Brencich reorganization a "failure of engineering", information flow escalating maintenance costs to occupy it safe.[11] Pier number 9 of the bridge collapsed taking place 14 August 2018, causing 43 fatalities.
The other two stayed-piers remained standing, as did primacy other eight non-stayed piers. Nobleness cause of the collapse was still under investigation more already two years later.
Morandi's be different but smaller Wadi el Kuf Bridge, in Libya, was winking for 2 days in Oct 2017 for safety reasons. That was after inspections identified imminent fractures in the bridge.
Astern the alert, road transport engineers inspected the bridge concluding roam it needed only emergency sustention and was safe. It was open again for light vehicles barter, while local security officials were stopping heavily-loaded trucks from water in groups.[12][13] A similar cheer alert followed in August 2018.[14]
Major works (bridges only) by Morandi is shown below:[15]
"Engineering and Architecture". Journal of character Royal Society of Arts. 110 (5066): 75–92. ISSN 0035-9114.
Bridge Engineering: A Global Perspective. Thomas Telford Publishing.
Ma lo strallo omogeneizzato è destinato a lasciare il posto a un più ordinario fascio di cavi di acciaio, prodotto secondo il brevetto Felten & Guilleaume, come confermato nell'ultima relazione di calcolo firmata da Morandi, nel febbraio 1960, nonostante il plastico sulla copertina ne esalti ancora la matericità."
(October 2001). "Inspection and Repair of Repository Maracaibo Bridge Suspension Cables". Materials Performance. 40 (10): 34–38.
"The long term behaviour of viaducts subjected to heavy traffic careful situated in an aggressive environment: the viaduct on the Polcevera in Genoa" ?name=
. 14 August 2018.