Have you ever wondered how materials cope with wear and tear over time? Fatigue testing simulates real conditions, subjecting materials to repeated load cycles, such as those that occur in components and structures on a daily basis. This test is essential for verifying resistance and durability in real situations.

During the process, a sample is subjected to periodic loads in specific machines, allowing the number of cycles until failure occurs to be measured. This data shows how the material behaves under continuous stress.

With this test, it is possible to predict the useful life of the material and detect possible points of failure, helping to optimize projects and reduce maintenance costs.

In the video, LAEDE performs a fatigue test on a fastening system on a concrete slab. Our laboratory is accredited by Cgcre according to ABNT NBR ISO/IEC 17025.

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The Rio Negro Bridge, as the Jornalista Phelippe Daou Bridge is known, connecting Manaus to the city of Iranduba, in the state of Amazonas, is considered a landmark of Brazilian engineering. It is the largest cable-stayed bridge in Brazil, with a total length of 3.6 km, and was inaugurated in 2011.

IEME Brasil performed dynamic tests on the cable-stayed section (400 m), an essential measurement to evaluate the structure and ensure its safety and durability.

In the video by Caio Becocci Pugliese, a panoramic flight over this iconic structure of our engineering.

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The city of São Paulo hosted, between September 11 and 14, 2024, at São Paulo Expo, the first edition of the Construction Pathology Fair (FEIPAT), held by the Adpat Community of Construction Pathology. The inaugural edition brought together, in an exclusive 450 m², companies specializing in construction pathology, building maintenance and property management.

IEME Brazil invited engineers José Filipe Carvalho de Viveiros, Mikaella Ogata and Luciana Kneip Pereira to visit the fair and learn about new technologies and services related to structural pathology. “This was the first edition of FEIPAT, an important milestone for the sector, as it contributes to giving greater visibility and recognition to this niche”, says engineer José Filipe Carvalho de Viveiros.

In addition to the opportunity to meet new companies, the fair brought together several IEME partners, also committed to offering services and products focused on the safety, quality and durability of structures.

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With the presence of President Santiago Peña and members of his government, including the Minister of Public Works and Communications (MOPC), Claudia Centurión, Paraguay inaugurated last Sunday, 3/3, the emblematic Heroes del Chaco Bridge, a cable-stayed structure that connects the capital, Asunción, to the Chaco’i region. The project dates back to 2013, but construction only began in 2020, in the middle of the pandemic, employing around 1,500 workers in the region. Once completed, the work should receive around 10,000 vehicles per day, relieving traffic congestion currently on the Remanso bridge, opened in 1978.

The bridge stretches 603 meters over the Paraguay River and has two pillars of 300 meters each with two sails supported by 23 stays on each side. It is the first bridge with four lanes for vehicle circulation, a pedestrian path and a cycle path. Together with access roads and viaducts, the complex totals 7 kilometers from Costanera Norte to its junction with the Remanso-Puerto Falcón section.

In addition to standing out as a new icon in the landscape of Asunción, the bridge also represents a great leap for Paraguayan engineering and for the companies of the Consórcio Unión, formed by CDD Construcciones and Constructora Heisecke. “This work symbolizes a transcendental step, it is the first bridge built by a Paraguayan company, which knew how to rise to the challenge we face in the country. Today we have absolutely nothing to envy an international company, nothing”, said president Santiago Peña.

IEME Brasil and LAEDE had a small but important participation in the work, by carrying out all static and dynamic tests to assess the safety of the structure and allow it to be opened to traffic. It was the first dynamic test of its kind carried out in Paraguay, a decision that shows the seriousness of the current Paraguayan government in relation to its enterprises and infrastructure projects.

See also on Instagram:

https://www.instagram.com/reel/C3LxpzPLSTK/?igsh=azk0YW5nMXV1ZzR3

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Puente Héroes del Chaco – Photo: IEME Brasil

Puente Héroes del Chaco – Photo: IEME Brasil

Puente Héroes del Chaco – Photo: IEME Brasil

Puente Héroes del Chaco – Photo: IEME Brasil

Puente Héroes del Chaco – Photo: BNamericas

Puente Héroes del Chaco – Photo: Creative Commons licenses by-sa 40 Overkill53

IEME / LAEDE technical team installing sensors on the Ponte del Chaco. Photo: Shirley Juliani Reproduction

IEME / LAEDE technical team carrying out the load test on the Ponte del Chaco. Photo: Shirley Juliani Reproduction

IEME / LAEDE technical team installing sensors on the Ponte del Chaco. Photo: Shirley Juliani Reproduction

 

 

Red Hot Chili Peppers, an American rock band, performed on 10/11 a show at the Morumbi stadium, part of their world tour “Global Stadium Tour”. The historic performance featured the return of guitarist John Frusciante, a classic member who returned to play with the band in 2019, after 10 years in other projects.

IEME Brasil monitored the stadium during the show, using sensors to measure the deformation of the structure, subjected to dynamic loads, such as those generated by the public at music shows or football matches.

São Paulo Futebol Clube (SPFC) and IEME Brasil have a long partnership in monitoring the Cícero Pompeu de Toledo Stadium. The monitoring provides important information about the structure and guarantees the safety and comfort of users, such as those who attended the show on 10/11 and other artistic and sporting events.

It is worth remembering that public agitation generates vibrations in the structure that can exceed the limits allowed in technical standards and generate panic, accidents and even structural collapse. The objective of regular monitoring is to avoid these situations with preventive measures and also to monitor the structure’s behavior in real time.

Monitoring also helps SPFC to optimize the necessary maintenance of the stadium, avoiding greater expenses with possible structural restoration works.

Congratulations to the SPFC Board of Directors, who through their care and responsibility ensure that their events take place safely.

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Technicians from IEME Brasil and LAEDE are in the field to carry out detailed inspection services in 16 special works of art (bridges or viaducts) and 7 tunnels of the Structural Integrity Management subordinated to the Directorate of Base Metals Atlântico Sul, of Vale, in Parauapebas (PA). The OAE and tunnels are located in the territories of Mineração Onça Puma, Mina do Salobo, Mina do Sossego and Porto São Luiz, in the States of Pará and Maranhão.

The contract began in August 2022 and is expected to end in September 2024. IEME estimates that approximately 30% of the service has already been completed.

Detailed inspection services for OAE and tunnels follow ABNT NBR 9452 – Inspection of Bridges, Viaducts, Concrete Walkways – Procedures and include the following tests:

• Verification of corrosion potential
• Checking the electrical resistivity of concrete
• Sclerometry (NBR-7584) – By tested area
• Chloride ion content
• Sulphate content
• RAA (Alkali Aggregate Reaction)
• Weld penetrant liquid
• Ultrasound
• Infrared thermography
• Pacometry
• Concrete permeability
• Concrete strength – core extraction
• Extensometry test
• Mapping with aerometry (drone)
• Mapping using 3D scanning

The inspection results in detailed reports containing all the reports of the technological tests carried out, informing the state of conservation and any pathologies identified, reporting points of improvement, drawings with the repairs to be made, if the inspection defines it, and the classification grade of each asset , as required by the standard.

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Carrying out the load test on the Itacaiúnas Bridge, using loaded trucks

Top and bottom view of the Itacaiúnas Bridge

Extraction of the specimen with the CP extracted

 

 

The British band Coldplay closed on Saturday, 18/3, the cycle of six shows in São Paulo, part of the world tour “Music of the Spheres” that celebrates the last album of the group. For the safety of the musicians and thousands of fans who attended the concert, the Morumbi stadium was being monitored by IEME Brasil, which installed sensors to measure the deformation of the structure subjected to dynamic loads, such as those generated by the public jumping in music shows or in matches. of football. These measurements provide a number of important pieces of information about the structure.

Stadiums that are constantly monitored and receive regular maintenance, as is the case of Estádio Cicero Pompeu de Toledo (São Paulo Futebol Clube – SPFC stadium), are very safe. Unfortunately, most Brazilian stadiums do not have this concern. The problem can arise when the structure enters into resonance, that is, the frequency of the dynamic load coincides with the natural frequency of the structure. In these cases, vibrations can exceed the limits allowed in technical standards and cause public panic, accidents and even the collapse of the structure.

SPFC, always concerned with ensuring the safety and comfort of its public, once again hired IEME Brasil to monitor the structure of the stadium. This time the event was the Coldplay concert. Congratulations to the SPFC staff for their care and responsibility.

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