Page 36 - Industrial Plant 2020
P. 36

Picture 13                                Picture 15













          Pictures 14a, b, c




                                                                       Picture 16


















                                                                       Picture 17



                                                                       collapse of the structure occurred on the 14  of August
                                                                                                     th
                                                                       2018, determining a situation of anomalous static
                                                                       balance and potentially risky condition, in the remaining
                                                                       structure. The dismantling activities started on the 8  of
                                                                                                          th
                                                                       February 2019 and were completed on the 31  of July
                                                                                                       st
                                                                       2019. 168 days of uninterrupted works executed by a
                                                                       temporary joint venture companies (ATI) composed by
                                                                       F.lli Omini SPA, Fagioli SPA, IREOS SPA and IPE
          Picture 18                                                   Progetti  srl.  The  companies  have  been  working in  a
                             Main criticalities and safety             strict collaboration approach, in a challenging
                             concerns                                  construction site  for a unique operation in the world
                                                                       and under a demanding time schedule imposed by the
                             The Polcevera viaduct (Morandi bridge) was one of the   National Authorities.
                             highest expressions of the Italian engineering capacity   The procedures adopted for the dismantling of the
                             in the field of prestressed concrete structures, designed   bridge involved a detailed preparatory phase of
                             to withstand high loads, but at the same time extremely   securing and functional testing of the remaining
                             fragile. This fragility manifested itself with the partial   structures in order to ensure that the operations would

            IndustrIal Plants - May 2020
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