The Viaduct, which fell to 2 meters on the edge of Pinheiros, near the Jaguaré Bridge, in the west of São Paulo, at dawn on Thursday (15), can collapse completely, according to Vitor Aly, municipal secretary of Urban Infrastructure and Works. Passing trains make the structure vibrate.
The Pinheiros Marine Motorway is closed due to the incident, to Castelo Branco, from the Transamerica Bridge to the Jaguaré Bridge. Traffic is redirected to the three local lanes. Since dawn, the teams have worked on the site to support the structure.
Due to the risk, the 9-Esmeralda line, which passes under the viaduct, was interrupted between Pinheiros and Ceasa stations. Villa-Lobos and USP-Cidade Universitária are closed. The free Paese bus system was activated, according to metropolitan transport secretary, Clodoaldo Pelisioni.
"We spent the whole night of monitoring and noticed a move this morning." Hearing experts, we raise the critical index of the structure, we accelerate security procedures, structuring support so people can work safely, "Aly said.
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"We will reduce the number of people working so that they can work safely in a critical situation like this.When asking if the situation of the viaduct's stability has worsened, it has deteriorated.If there is a possibility of ruining, there is a possibility of", added Secretary.
Technicians carry out the soil study at the site where the Pinheiros marginal viaduct was given
"I really called the State Secretary for Metropolitan Business and asked the CPTM to slow down the train, the vibration train and the structure moved, so the moment is now critical and we will accelerate the conservation process so that, after the stabilization of the structure, safety and recovery of this structure, "added the municipal secretary of the works.
On Friday morning, teams and technicians continued the work of preserving viaducts and land analyzes.
According to Henrique Dines, a bachelor professor and civil engineer, the issue of viaduct support could have been the cause of the fall of the structure.
"The most serious problem was beam breakage, a sudden rupture, probably due to material fatigue, due to the corrosion of the reinforcement, because the beam is exactly in a joint of the viaduct expansion and probably due to the infiltration of water, while the corrosion of the reinforcements The problem is sustained, "the expert said.
Marginea Pinheiros Viaduct over the CPTM line near the Jaguaré bridge – Photo: Abraão Cruz / TV Globo
According to him, the cracks found in the viaduct did not seem to have been the cause of the road. "It seems that this crack is a consequence of the problem that led to this rupture in the viaduct. What actually broke was the support of the viaduct on the extreme pillar."
On Thursday, technicians at the Institute for Technological Research (IPT) made a first survey of structure that generated. They found a crack running over the viaduct. The strip is worrying and shows that there is a risk for the structure at this point. The viaduct crosses line 9 and a CPTM construction site.
The city of São Paulo has 33 viaducts that require maintenance
Viaduto gives up – Photo: Juliane Souza / G1
Mayor Bruno Covas (PSDB) said the city council opened a tender on November 9 to hire companies to develop maintenance projects for 33 bridges and viaducts, which does not include what he gave to the marginalized Pinheiros. R $ 44.7 million and R $ 9.5 million were committed to bridge and viaduct maintenance.
"Studies have always taken place since the beginning of last year, when the City Hall found that there are 33 viaducts here in the city that deserve attention." No, I say again, there is no external sign that could indicate that this will happen. people have already checked that in another 33 a preventive remedial action is needed so that events do not happen in the future. Over the past year, we've been busy bidding and hiring a company to make the necessary preventive remedial action. "the mayor said in a visit to the scene of the incident.
"The study to know what happened and what remedy is to be adopted is that it should be completed by the end of the holiday," the mayor said.
According to the City Hall, inspections of 185 viaducts and bridges under the City Hall are carried out by periodical surveys carried out by the Municipal Secretariat for Infrastructure and Works (Siurb).
Last year, the Bridges and Viaducts Recovery Program was resumed, "abandoned by leadership in 2016," according to City Hall. After being suspended due to questions by the Court of Accounts of the Municipality, on August 9, a rental offer was opened for companies that will develop structural and executive projects for re-qualification and technical reports for the maintenance of 33 bridges and viaducts.
The airbag of the vehicles that pass through the Pinheiros access grip when the structure is gone – Photo: Abraão Cruz / TV Globo
Drivers traveling on the viaduct reported that they have promoted what they call the "movie scene". "I felt the car was flying," said Renailton Alves vigilant.
When the road disappeared, around 3:30 in the morning, some drivers were traveling on the viaduct and one of them had small excoriations. Five cars were damaged. Some of them, which were thrown on the track when the asphalt was opened, triggered the airbags.
"I just passed the car at 3:30 am I felt that the car was flying and falling to the ground." Then I noticed that the cars were already tilted on the shoulder, and then the car was no longer able to leave the space, "said Renailton.
Another driver reported that the cars fell one by one. "Guys, it was a movie scene, it was literally an" armageddon. "" We passed by the car, falling down one by one, and when we stopped the car, we managed to make other cars fall, "said system analyst Ronaldo Andrade.
VIADUTO CEDE NU MARGINAL PINHEIROS