Comments. [92] A resident of Genoa told reporters: "The central government will scapegoat the bridge company, the company will scapegoat someone else — they're all to blame. L'analisi ha il solo scopo di studiare gli sforzi e le deformazioni dell'intera opera. Precipitati 30 auto e 3 tir: si cercano dispersi. [47] Between 30 and 35 cars and three trucks were reported to have fallen from the bridge. [99], The last two cable-stayed pillars (10 and 11) of the bridge were demolished using a tonne of explosives on 28 June 2019. [46][74], Multiple survivors were transported to nearby hospitals, many in critical condition. [90][91] Infrastructure investment in Italy was reduced dramatically after the 2008 financial crisis. [49], A large part of the collapsed bridge and the vehicles on it fell into the rain-swollen Polcevera. [30][31] A crack in the road had appeared at least 14 days before the collapse, near the south-eastern stay of the subsequently-collapsed pillar 9. The crack may have indicated that the stay had stretched. comment. It connected Genoa's Sampierdarena and Cornigliano districts across the Polcevera valley. [45][failed verification], On 14 August 2018 at around 11:36 local time (09:36 UTC), during a torrential rainstorm, a 210-metre (690 ft) section of Ponte Morandi collapsed. We all know how bad our infrastructure is in Italy. When a 210 metres (690 ft) section of the viaduct collapsed during a rainstorm on 14 August 2018, 43 people died — leading to a yearlong state of emergency in the Liguria region, extensive analysis of the structural failure[3] and widely varying assignment of responsibility. Scientists from NASA's Jet Propulsion Laboratory in Pasadena, California, developed a method of analyzing satellite data to detect millimeter-size changes. [52] The bridge was reportedly undergoing maintenance at the time of the collapse, including strengthening the road foundations. I nomi iscritti nel registro sono in tutto 74. The complete bridge was planned to be removed, along with multiple houses in the surrounding area. ", "Repair of the stay cables of the Polcevera Viaduct in Genova, Italy", "Detail view – Part of reinforced pylon number 10. [65] There is speculation that lightning may have struck the stays, or a landslide could have destabilised the base. From the movement of the top cross-beam, it appears the tension cables of the south-eastern stay gave way. [95] Autostrade per l’Italia's chief executive, Giovanni Castellucci, said that the bridge would be rebuilt within eight months. Ma l’ingegnere, che per anni ha lavorato per società Autostrade, ha chiesto di mantenere l’anonimato. In Genoa, in 2017, a confidential university report noted disparities in the behaviour of the stays of the now collapsed pillar 9. [50] Davide Capello, the former goalkeeper for Cagliari, survived without injury and was able to walk away from his car, even though it dropped 30 metres (100 ft) before becoming wedged between parts of the fallen bridge. Ingegneria. The bridge was an engineering and architectural landmark since its construction. Nei confronti degli altri, finora non iscritti nel registro degli indagati, si legge nella nota della Procura, sono emersi indizi di responsabilità. [50] The latter were largely empty because the collapse occurred on the eve of the Italian public holiday, Ferragosto. Morandi was, in fact, among the first to use concrete in the s and then the prestressed concrete. According to the Corriere della Sera, this was the 11th bridge collapse in Italy since 2013. The funeral was attended by Italian politicians, such as President Sergio Mattarella, Prime Minister Giuseppe Conte, interior minister Matteo Salvini, transport minister Danilo Toninelli, and the secretary of the Democratic Party Maurizio Martina. The study highlighted how the traffic volume, with daily queues at peak hours joining the Autostrada Serravalle, produced "an intense degradation of the bridge structure subjected to considerable stress", with the need for continuous maintenance. Analisi esplorativa del Ponte Morandi Modellazione strutturale Genoa / Italy / 2017. love loved unlove 0. The bridge is widely called "Ponte Morandi" after its structural designer, the noted engineer Riccardo Morandi.[2]. Il Politecnico aveva avvertito Autostrade a novembre", "Natural frequencies of prestressed concrete beams: theoretica prediction and numerical validation", 10.1002/(sici)1096-9845(199701)26:1<41::aid-eqe622>3.0.co;2-u, "Genova, storia del ponte Morandi dalle polemiche al crollo", "La mancata manutenzione ha causato il crollo del ponte Morandi a Genova? It had a length of 1,182 metres (3,878 ft), a height of 45 metres (148 ft) at road level, and three reinforced concrete pylons reaching 90 metres (300 ft) in height; the maximum span was 210 metres (690 ft). [69] The family waited two days to release a company public statement offering condolences to victims and their families.[70]. 3/�@�SS��R��7K��1e+���d �w�R�v��Te:�OReQ!��P�-�I��_�-~�&_ON�^WT9�~�B��X� ��136�h���ܭ&Q�/�䨧�����ٮ���m��� DN. [51], The initial hypotheses were that a structural weakness or a landslide caused the collapse. [14], In a 1979 report, Morandi himself recommended for authorities to "remove all traces of rust on the exposure of the reinforcements, fill the patches with epoxy resin, and cover everything up with elastomer of very high chemical resistance". The city council requested proposals for improvement of traffic flow through Genoa, with the Autostrade company in 2009 proposing the "Gronda di Ponente" project to improve flow, by moving traffic to a newly built Autostrada interchange system located to the north of the city. [37] Modal frequencies were more than 10% different, specifically on the southern stays. [42] Other related methods were applied on the stays of Ponte Morandi in the 1990s, such as reflectometry, which was able to measure the tension but not strength of the tendons. Other parts landed on the tracks of the Turin–Genoa and Milan–Genoa railways, and on warehouses belonging to Ansaldo Energia, an Italian power engineering company. [94] The position of the Benetton family, whose company owns 30% of Atlantia, has also come under scrutiny. "[87], The ruling coalition put pressure on the managers of the road, Autostrade per l'Italia (which is part of the Atlantia group). La costruzione del Ponte Morandi girato in 8mm. [18][19] Pillar 10 had the stays at the top strengthened with steel sheathing in the 1990s. In particolare, studiò le qualità del cemento armato. [32][33] At no point was there a suggestion to reduce the load on the bridge. Morandi design unusual at the time. [53], It has been reported that the southern stays gave way explosively due to corrosion and damage. Their analysis suggests that the deck between pier 10 and pier 11 had minimal movements until early 2015, and that between March 2017 and August 2018 there was a significant increase in structural changes (noting that the collapsed pier is pier 9, without any consequential damage to piers 10 and 11, and the between deck). [73], Construction began on the replacement Genoa-Saint George Bridge, designed by the Italian Genoese born architect Renzo Piano, on 25 June 2019, and it was completed in the spring of 2020. Pylon 9 did not receive this upgrade", "Genova, crollo del ponte autostradale, nel mirino i cavi di cemento armato. [7][8] The concrete was prestressed only to 10 MPa,[citation needed] making it susceptible to cracks, water intrusion, and corrosion of the internal steel. Anche quest’altro ingegnere, assistente di Morandi, durante la costruzione del ponte sulla laguna di Maracaibo (fra il 1957 ed il ’62) quando parlava del Maestro, lo faceva con occhi trasognati, giacché, come tanti allora e prima di allora, lo stimava capace di grandi imprese. [31][54][55][56][57][58] With only four stays, one of them giving way might have been enough for the structure to lose stability. [47][48] The collapsed span was centred on the westernmost cable-stayed pillar, pillar 9,[47] and crossed the Polcevera river as well as an industrial area of Sampierdarena. Dal 1971 è stato Research Professor presso l’Università Statale della Florida. [77], The railways connecting Genoa Sampierdarena (and Genoa Piazza Principe) with Genoa Borzoli and Genoa Rivarolo were closed immediately as a result of the bridge's collapse. Il crollo del Ponte di Genova, avvenuto il 14 agosto del 2018, ha suscitato grande interesse nei riguardi delle opere firmate dal suo storico progettista: l’Ingegnere Riccardo Morandi. Related Videos. [10] About 30% of the tendons had corroded away. Viadukten blev opført mellem 1963 og 1967. The work on the reinforcement of the stays on pillars 9 and 10 would have needed to be finished within five years. [47] As of 02:00 the following day (midnight UTC), 12 people were known still to be missing, and voices could be heard calling from underneath the debris; rescue efforts were continuing by floodlight using techniques commonly deployed after earthquakes. Romano Amodeo 38,783 views. It featured diagonal cable-stays, with the vertical trestle-like supports made up of sets of Vs: one set carrying the roadway deck, while the other pair of inverted Vs supported the top ends of two pairs of diagonal stay cables. [34][35], Workers were installing new heavy concrete Jersey barriers on the Ponte Morandi before it collapsed, reducing the already low compressive pre-stress on the concrete of the stays and increasing the loads. [30] On 23 August 2018, Brencich resigned from the inspection commission, and Minister Danilo Toninelli removed Ferrazza as the chair, for "reasons of opportunity in relation to all the institutions involved in this affair".[97]. Per chiarirci le idee abbiamo cercato un tecnico in grado di spiegarci quanto è accaduto e quanto potrà accadere. L’Ingegner Riccardo Morandi è stato a più riprese docente universitario. Inchiesta ponte Morandi, Schema del Quesito formulato dal giudice per accertare le cause del crollo. A Genova i manager chiederanno scusa", "Genoa collapsed bridge that left 43 dead to be rebuilt within eight months", "Ferrazza e Brencich lasciano commissione (Dopo le polemiche sulla loro posizione)", https://www.nasa.gov/feature/jpl/new-method-can-spot-failing-infrastructure-from-space, "L'autista: "Il ponte Morandi crollato davanti a me, ho visto le auto precipitare, "Genoa readies new bridge two years after tragedy", Photo documentation of Ponte Morandi, 8 August 2015, https://en.wikipedia.org/w/index.php?title=Ponte_Morandi&oldid=995813854, Buildings and structures demolished in 2019, Wikipedia articles needing factual verification from April 2019, Short description is different from Wikidata, Infobox mapframe without OSM relation ID on Wikidata, Pages using infobox bridge with unknown parameters, Pages using infobox bridge with clearance, Articles containing Italian-language text, Articles with unsourced statements from November 2018, Articles with unsourced statements from August 2019, Articles with unsourced statements from October 2018, Articles with failed verification from August 2018, Creative Commons Attribution-ShareAlike License, Location of the collapse, which resulted in the, This page was last edited on 23 December 2020, at 01:01. [81] On 16 August, the Lega Serie A postponed the opening 2018–19 Serie A matches for both Genoese association football clubs Genoa and Sampdoria that were originally scheduled for 19 August. Il nome di Riccardo Morandi è assurto alla cronaca nera il 14 agosto 2018 a causa del crollo del viadotto che porta il … It was similar to his earlier 1957 design for the General Rafael Urdaneta Bridge in Venezuela,[5] except for the stays, which on the Venezuelan bridge are not covered with prestressed concrete. [15] A single truck can weigh as much as 44,000 kg (97,000 lb). Camomilla: come e perché intervenimmo senza demolirlo sugli stralli della pila 11 del Ponte Morandi nel 1992", "Ponte Morandi, ispezioni su stralli erano fallite: Ministero ha approvato un progetto incompleto", "Ignored university reports about Morandi bridge: "Deformed pylons and oxidized cables, "Ponte Morandi a Genova, una tragedia annunciata? [100], The collapsed section of the Ponte Morandi, CS1 maint: multiple names: authors list (, In the Venezuelan bridge the stays was not covered with prestressed concrete, "Expert reaction to Genoa motorway bridge collapse", "La storia del Ponte Morandi: un tempo avveniristico, ma non mancavano criticità", "Crollo Genova, trovato l'ultimo disperso sotto le macerie: è l'operaio Mirko. [13] This resulted in excessive deferred displacement of the vehicle deck so that it was neither level nor flat; at the worst points, it undulated in all three dimensions. E l’abbiamo trovato. [17] The minutes of a February 2018 government meeting reported that resistance and reflectometry measurements had been performed indicating an "average" reduction of the cross section of 10 to 20% of the tendons. Il suo lavoro inoltre gli valse due lauree Honoris Causa: una presso l’Università di Monaco di Baviera e una presso l’Università degli Studi di Reg…
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