Interview by director Marco Juliani to SPTV, from Rede Globo, in 2018.

The video shows the operation of the Vibrodina at the Pacaembu Stadium, which underwent vibration tests on the Tobogã structure.

Watch the full article below.

By: Webtranspo newsroom

In partnership with the Structural Laboratory of the School of Engineering at USP São Carlos, IEME Brasil Engenharia Consultativa is setting up a laboratory for the approval of subway-railway components for permanent tracks. According to the company, approval is a procedure designed to attest whether the components of a given manufacturer meet the technical and quality requirements.

In general, the product is subjected to real conditions of use to evaluate its performance. On site, elastomeric materials and permanent track components will be tested, such as fixings, AMVs – track changing devices and sleepers. In the case of permanent subway-railway components, the tests are established by national and international regulatory bodies.

“The laboratory will be the first in Brazil to carry out static and dynamic tests defined in international technical standards in materials for attenuating vibrations in metro-railways, tests that were previously carried out only outside the country”, says Marco Juliani, engineer and director of IEME Brasil.

By: Joana Pellerano /Portal 2014

Until the 1950s, football fans would watch games in suits and ties, sitting quietly, and vibrated (or jumped) only in a stronger move or in a goal like those of Didi, Pelé or Garrincha. From the 1970s onwards, the “galera” began to participate much more actively in the show, in choreographies that brought together thousands of people jumping at the same time, sometimes during the entire game.

But this vibration can be dangerous if the arena structure is not prepared to withstand it. One way to prevent accidents is to analyze the dynamic behavior of the bleachers, defining what is the vibration it needs to withstand and how to adapt it to fulfill this mission. This is the theme of the free lecture that engineer Marco Juliani, director of IEME Brasil Engenharia Consultativa, will give at the Institute of Engineering, in São Paulo, on the next 10/15.

During the lecture, Juliani promises to make a brief history of the design criteria for soccer stadium bleachers and compare them with the new international safety and comfort requirements in relation to vibrations, including those imposed by FIFA. The engineer will talk about dynamic structural adequacy methods: diagnosis, design, execution and efficiency tests.

The meeting should end with an analysis of the situation in Brazilian stadiums. IEME Brasil works with Italian technology for the dynamic evaluation of structures, which allows detecting structural problems in the stands of stadiums as a result of excessive vibrations from the audience. The company has already provided services for the Morumbi and Palestra Itália stadiums, in São Paulo, and Maracanã, in Rio de Janeiro.

By: Liana Becocci / Folha do Condomínio

The heavy rains that have hit Rio de Janeiro in recent weeks have revealed how much government omission in relation to the disorderly occupation of land can cost. The problem is not exclusive to the State of Rio de Janeiro. Irregular buildings (both low-income and upper-middle-class homes), many located in areas of risk or environmental protection, are part of the urban landscape in all Brazilian regions.

São Paulo, the country’s main metropolis, has around 16% of its population residing in informal subdivisions, according to a 2008 survey by Fundação Seade. There are more than 1.7 million people, almost the same as the population of capitals like Porto Alegre, Curitiba, Recife and Manaus, where the problem also exists and is serious.

As in similar episodes, public authorities in Rio de Janeiro announced ambitious plans to remove families living in condemned areas. The task will not be easy, and the rulers are aware of this, so much so that they tend to avoid this action because they consider it unpopular.

Social tensions can, in fact, result from the displacement of people, as well as the loss of established community ties, employment and cultural goods. However, these negative impacts can be mitigated through effective social monitoring and processes that ensure the effective participation of the community. It is the so-called social management, which seeks to ensure removal with dignity.

Experience confirms that the compensation for resettlement carried out on these bases compensates for possible costs, whether social or political. The first benefits are the improvement in the quality of life of that population from the point of view of living conditions; the legal regularization of the situation of the families, allowing a broad social insertion, mainly when the displacement is accompanied by the integral urban planning of the new area, with guarantees of access to services of sanitation, transport, health etc.

Another positive point is the possible generation of work and income during the works, a benefit that can be extended to nearby communities. This whole process creates conditions to prevent new clandestine occupations from establishing themselves.

After the tragedy in Rio de Janeiro – and others that preceded it, such as Morro do Baú, in Santa Catarina, and Jardim Pantanal, in São Paulo, just to name a few more recent ones – it is clear that the State is not more can ignore the problem of irregular occupation. Resettlement presents itself as an immediate viable solution for reducing the social and urban vulnerability of the victims, however, we must remember that the definitive and structural solution to the problem involves efficient management of land use and more effective social policies .

*Liana Becocci is an engineer and director of Ieme Brasil, a consulting engineering company, with ISO 9001/2000 certification in Social Management and consolidated experience in numerous works carried out for the municipalities of São Paulo and Suzano, Dersa (Road Development), CDHU (Company Housing and Urban Development), among other clients.

By: Webtranspo newsroom / Marco Garcia

Much is said about chaotic traffic and the absence of efficient public transport in the city of São Paulo. Panels, meetings and lectures are and have already been held to discover a method that increases mobility in the largest Brazilian city. The results of the debates point to a subway system that advances through the four corners of the metropolis. However, the task is not as simple as that. It involves many issues that sometimes escape the competence of the company that is in charge of the works. Two of these problems are the noise and vibrations of the subway line, which in the future will cause inconvenience to residents and workers of houses and companies installed along the route of the trains.

With that in mind, IEME Brasil Engenharia Consultativa, which works on projects that attenuate vibrations and noise around railway lines, developed the VVP-IEME (Permanent Track Vibrations) technology to eliminate secondary problems caused to the population neighboring the railway network. The system was successfully used in the stands of the Cícero Pompeu de Toledo stadium, Morumbi, in 1996, to free up the stage for matches, which had been interrupted by Contru (Department of Control of Property Use). According to Liana Becocci, Director of IEME Brasil, the system is being applied to some lines of the São Paulo Metro, such as the Green Line, which through VVP eliminated the nuisance of vibrations and noise in 15 kilometers of tracks.

Mapping

The method makes use of experimental techniques that quantify the effects produced by vehicle traffic on rails, first mapping the entire region surrounding the line to survey the types of constructions that exist in the area. Technology can be added to future railway projects This procedure provides important information to the construction company, such as identifying which areas cannot be affected by vibrations or noise, such as hospitals and theaters. “With the map in hand, the company can make a schedule detailing which structure needs to attend first and which can wait a little longer; anyway, the main advantage is to optimize all the problems that the structure has”. “With the simulation, we can check the degree of vibration that the Metro transfers to neighboring houses, as the lines can be directly applied to the ground, and such a procedure can affect constructions or even compromise the structures of nearby bridges. We see if these noises are exceeding the limits prescribed by legal norms”, reports Liana.

Shock absorbers on the rails

In this way, IEME collects information on the critical points and forwards it to the responsible company, even suggesting the application of a mitigation system called “Massa spring”. It is a system composed of a floating slab (mass) that supports the fixing of the rails, then the fixing of the train. This slab is interconnected to the dampers (springs), which work together to minimize the effects of vibrations caused by the passage of trains”, points out Daniela Davi, Engineer at IEME. IEME manages the support installation works and then returns to the critical points to carry out practical tests that verify the effectiveness of the system before the lines start operations.

The director claims that the technology can be applied to any rail system, including future TAV (High Speed Train) and VLT (Light Rail Vehicle) projects, as well as CPTM (Companhia Paulista de Trens Metropolitanos) trains. . It is worth noting that IEME does not sell products. “We only offer studies and guidelines that determine the parameters and, from there, the market has to manufacture a product that meets the specifications. We only supply the characteristics for manufacturing”, says the executive“ Our job is to discover the problem, find a solution and indicate to the company what type of product can be used to solve the problems”, she completes.