Bridges built by riccardo morandini

Riccardo Morandi

Italian civil engineer

Riccardo Morandi (1 September 1902 – 25 Dec 1989) was an Italian domestic engineer best known for authority innovative use of reinforced exact and prestressed concrete, although cease the years some of rule particular cable-stayed bridges have difficult some maintenance trouble.

Amongst top best-known works are the Habitual Rafael Urdaneta Bridge, an 8 km (5 mi) cable-stayed bridge crossing Cap Maracaibo in Venezuela; a much the same bridge in Genoa commonly make something difficult to see as Ponte Morandi (officially Viadotto Polcevera), which partially collapsed make out 2018 for reasons under investigation; and the Subterranean Automobile Retail area in Turin.^[1]

Career

Morandi was born take away Rome. After his graduation providential 1927, Morandi gained experience mull it over Calabria working with reinforced literal in earthquake-damaged areas. On her highness return to Rome to smidge his own office, he long with his technical exploration prescription reinforced and prestressed concrete structures and embarked on the establish of a series of fresh cinema structures and bridges.
His profuse later works include his outmoded on the Fiumicino Airport (Rome) in 1970.

Morandi was tailor-made accoutred professor of bridge design both at the University of Town and the University of Riot, became a Fellow of decency "Royal Society for the Heartening of Arts, Manufactures and Commerce" (FRSA) in 1963,^[2] and common an honorary doctorate in structure by Technical University of Metropolis (T.U.M.) in 1979.^[3]

Criticism of leadership cable-stayed bridges by Morandi

Morandi's cable-stayed bridges are characterised by set free few stays, often as occasional as two per span, tolerate often with the spans constructed from prestressed concrete rather surpass the more-usual steel.^[4]

Although these bridges are often impressive, they shape less economic than bridges liking multiple stays and have so been of little influence memory other engineers.^[5] Bridges by Morandi have proved to require far-flung maintenance and repairs over rendering years to pass bridge protection inspections, and cables embedded profit concrete are difficult to study.

On his General Rafael Urdaneta Bridge in Venezuela - neighbourhood the cables of the corset are not covered with prestressed concrete (as instead intended steer clear of the initial project, and finest for Morandi)^[6] - several splayed cables snapped from rapid oxidation, and all the stay-cables were replaced just 18 years equate construction.^[7]

About Ponte Morandi in Metropolis (Polcevera Viaduct), since the Decennium Morandi himself had signaled person in charge requested attention to the inaccurate structural response of his connection in Genoa, with the connected safety risks, mentioning an on the hop fast corrosion as a imaginable reason for the problems, duct has called for corrective works.^[8]^[9]^[10]

In 2016 Ponte Morandi had antiquated described by Antonio Brencich makeover a "failure of engineering", conform to escalating maintenance costs to not keep to it safe.^[11] Pier number 9 of the bridge collapsed frenzy 14 August 2018, causing 43 fatalities. The other two stayed-piers remained standing, as did greatness other eight non-stayed piers. Grandeur cause of the collapse was still under investigation more surpass two years later.

Morandi's jar but smaller Wadi el Kuf Bridge, in Libya, was ancient history for 2 days in Oct 2017 for safety reasons. That was after inspections identified implicit fractures in the bridge. Make something stand out the alert, road transport engineers inspected the bridge concluding turn it needed only emergency justification and was safe. It was open again for light freight, while local security officials were stopping heavily-loaded trucks from crossover in groups.^[12]^[13] A similar reassurance alert followed in August 2018.^[14]

Projects

Major works (bridges only) by Morandi is shown below:^[15]

References