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Museu Guggenheim

Museu Guggenheim

Guggenheim Abu Dhabi is a museum of modern and contemporary art, located in Saadiyat Island cultural district in Abu Dhabi, United Arab Emirates. As this awe-inspiring museum took shape, numerous challenges needed to be overcome, and Dextra provided crucial reinforcements to the structure, ensuring its stability, durability, and overall success. We supplied an astounding 140,000 Bartec couplers, 30,000 RepairGrip couplers, 50 tons of Geotec rock bolts, and 199 sets of DCP anchors, contributing significantly to the construction of this iconic masterpiece.

Strengthening the Structure with Bartec Couplers:

The Guggenheim Abu Dhabi stands tall and proud, thanks to the reinforcement provided by Dextra’s Bartec couplers. With a supply of 140,000 Bartec couplers, Dextra ensured that the concrete reinforcement in the structure remained robust and resilient. These couplers provide a reliable mechanical connection between reinforcing bars, enhancing the overall strength of the structure.

Seamless Rebar Connection with RepairGrip Couplers:

The use of 30,000 RepairGrip couplers helps connect rebars with no prepared threads, ensuring a seamless connection of rebars and minimizing the risk of structural failure.

Stabilizing Rocks with Geotec Rock Bolts:

In addition to the couplers, Dextra provided 50 tons of Geotec rock bolts to stabilize the rocks surrounding the museum. These rock bolts serve as critical anchors, reinforcing the natural formations and enhancing their stability. By utilizing them, the construction team effectively mitigated the geological risks associated with the site, ensuring a secure foundation for the museum.

Retaining the Seawall with DCP Anchors:

The museum, standing gracefully on the shores, required robust seawall retention, and Dextra’s DCP anchors provided the ideal solution. With the supply of 199 sets of DCP anchors, the seawall was reinforced and secured effectively. The anchors offer reliable and efficient retaining solutions for coastal structures, providing stability in the face of dynamic forces such as waves and tides.

Upon completion, it is planned to be the largest of the Guggenheim museums.

Desenvolvimento da Central Elétrica de Battersea: A Revitalização de um Marco do Reino Unido

Battersea Power Station Development:

The Revitalization of a UK Landmark

Battersea Power Station was a decommissioned coal-fired power station, located on the south bank of the River Thames, in Nine Elms, Battersea, in the London Borough of Wandsworth.

The power station was one of the world’s largest brick buildings and one of the last major symbols of London’s industrial past.

After the building remained empty for almost 40 years, a redevelopment plan kicked off with the mission to build a new iconic London landmark.

The 3rd phase consists in the creation of the so-called ‘Electric Boulevard’, which will include a connection to the Northern Line Extension station, more than 1,300 residential units, a 160-room hotel, retail spaces, restaurants and leisure facilities.

Dextra has been supplying several rebar coupler solutions to the site.

More than 100,000 Griptec and Rolltec cast-in-situ couplers were applied in masonry cells to alleviate the problem of rebar congestion due to long lap length.

Moreover, precast concrete panels reinforced by rebars were used in the building, equipped with 30,000 Groutec couplers for onsite connection of continuation bars.

The panels were easily lifted into place at the construction site: coupler cavities were then filled with non-shrink grouting mortar through the injection holes.

Finally, 3,000 Unitec bolted couplers were installed on rebars for repair works. These couplers were used to replace the damaged reinforcements with new ones and to connect to the finished structure.

The mixed-use community is anticipated to be completed in 2020 and to become a new landmark for locals, tourists and residents.

O Link La Défense

O Link La Défense

The Link is a 242-meter-high skyscraper in France, and one of the most recognizable structures in the heart of Europe’s largest business district. The building, located in Paris La Défense, will be the tallest high-rise in the country and a prime example of innovative engineering and cutting-edge technology in the world of architecture.

One of the key factors that sets this building apart from others is the use of Dextra’s Fortec coupler for the reinforcement of its structure. Fortec coupler is a highly advanced and innovative solution for reinforcing concrete structures, and it was used throughout the building to ensure maximum strength and stability.

The building is being constructed with a focus on sustainability and durability. The use of Fortec coupler was an important part of this effort, as it provides a reliable and long-lasting solution for reinforcing concrete structures. The coupler is made of high-strength steel, which makes it extremely durable and able to withstand the harsh weather conditions in the La Défense area.

Fortec coupler also offers a number of benefits over traditional reinforcement methods. For example, it is faster and easier to install than traditional reinforcement methods, which helps to reduce construction time and costs. It also helps to maintain the structure’s integrity even in the event of an earthquake or other natural disaster.

The Link La Défense building is set to be a marvel of modern engineering, and the use of Fortec coupler is a critical component in its design. The coupler’s durability, reliability, and sustainability will ensure that the building remains a prominent structure in the La Défense area for many years to come.

Image credit: www.skyscrapercity.com, thelink-ladefense.com, The Link © PCA-Stream

Mega Reservatórios do Catar

Mega Reservatórios do Catar

Qatar’s General Electricity & Water Corporation (KAHRAMAA) is currently building fresh water reservoirs to store the equivalent of 7 days of Qatar’s national consumption of fresh water at WHO (World Health Organization) standards. The primary reservoirs are located in five different sites in Doha area: Um Baraka, Um Salal, Rawdat Rashid, Abu Nakhla, and Al Thumama.

The first phase of the project involves the construction of 5 mega reservoir sites, and will support the expected water demand at horizon 2026. The second phase includes the construction of 16 additional reservoirs within the five existing mega sites. With a capacity of 3.5 million m3 each, the Reservoirs are among the largest of their kind in the world.

For this project, Dextra Middle East delivered more than 3 million Bartec couplers to the rebar fabricators and contractors involved on the different packages.

Project requirements regarding corrosion protection specify that the complete reinforcement, including couplers, should be epoxy coated. Dextra is therefore delivering all Bartec couplers with epoxy coating, giving them a distinctive green look.

qatar-reservoir-epoxy-bartec

Couplers are used in the raft and columns all over the different reservoirs as a way to reduce steel congestion and generate savings.

For more information about Dextra solutions and project in the Middle East, please contact our Dubai office.

Fujairah Port Service Harbour Marine Works & Buildings

Serviço Portuário de Fujairah Obras e Edifícios Marítimos do Porto

Dextra involved in the expansion of Fujairah Port in 2007, supplying more than a thousand tons of marine tie bar systems for the construction of the new Oil Terminal 2 and South Breakwater Berths.

In 2017, Dextra took part in the service harbour construction project. The project includes the construction of the service harbor building, new quay walls, and marine works.

Marine tie bars totaling about 380 tons were provided for the anchoring of the quay walls. The high-performance grade 700 bars, which enable a higher degree of performance for comparatively smaller diameters, were chosen to ease transportation and installation at site.

For the new Service Harbour in the Port of Fujairah, two breakwaters are being built: the 800-meter-long northern breakwater and the 1.2-kilometer-long southern breakwater, which features varied rock grades.

Source of images: https://overseas-ast.com/projects/fujairah-port-service-harbour-marine-works-buildings/

Expansão do Porto de Aberdeen

Expansão do Porto de Aberdeen

Aberdeen Harbour is one of the oldest and busiest ports in the UK.

It serves as a hub for the marine operations of oil and gas industry in north-west Europe, offering links to 40 countries.

The expansion project of the new South Harbour aims to increase and diversify the existing capabilities. Combined with the current port, Aberdeen Harbour will soon become the largest port in Scotland in terms of berthage.

The Aberdeen Harbour expansion mainly involved dredging within Nigg Bay to construct two breakwaters and develop quayside on the north and west sides of the bay.

Dextra offered a convenient solution for concrete integrity testing of the 35-45m depth bored piles that support the harbour structure. Both 50 and 100mm tubes were used by the contractor: Dragados, with 100mm used for inclinometry and coring purpose.

After drilling a vertical hole into the soil, Sonitec sonic tubes were equipped with the reinforcement cages and lowered into the hole, the latter is then filled with concrete, and the sonic logging testing is subsequently performed.

Dextra Sonitec system is designed to facilitate the assembly and installation of long tube lengths in reinforcement cages with its enlarged bell-mouth that allows the seamless connection of the tubes. The system complies with ASTM D6760, the standard method for integrity testing by ultrasonic cross-hole testing.

This port expansion upscales opportunities for existing customers, and opens the door to new markets, future-proofing the harbour’s ability to support the economic prosperity of the city and region.

Elevando o Porto de Sokhna por meio de soluções inovadoras de infraestrutura marítima

Elevando o Porto de Sokhna por meio de soluções inovadoras de infraestrutura marítima

O projecto de expansão do Porto de Sokhna está a remodelar a dinâmica do comércio global, com um cais de 480 metros e um calado de 18 metros para a Bacia 2. Este empreendimento não só amplifica a capacidade marítima do Egipto, mas também destaca o papel da Dextra no fornecimento de soluções inovadoras de infra-estruturas marítimas.

Localizado no Mar Vermelho, o Porto de Sokhna é um eixo do comércio internacional devido à sua proximidade com o Canal de Suez. A sua extensão na Bacia 2 é um movimento estratégico para responder às crescentes exigências comerciais e optimizar a conectividade entre a Ásia, a Europa e África.

O coração da expansão está no impressionante muro do cais, com 480 metros de comprimento e 18 metros de calado. A Dextra demonstrou sua expertise ao fornecer 265 toneladas de tirantes marítimos, grau 700, e gaiolas de esferas, para a construção do terminal DP World. Estes componentes melhoram a integridade estrutural e a durabilidade face aos desafios colocados pelo ambiente marinho.

Reconstrução do cais Pak Kok na Ilha Lamma

Reconstrução do cais Pak Kok na Ilha Lamma

The Reconstruction of Pak Kok Pier on Lamma Island is a project to reconstruct the existing pier located at the northern tip of Lamma Island in Hong Kong, including provision of ancillary facilities such as roof cover, lighting system, benches, and solar panels, etc. and environmental monitoring and mitigation measures.

Due to the primitive design of the Pier and the occasional rough sea condition, the berthing condition of the Pier is unsatisfactory, causing inconvenience to passengers, especially for kids and the elderly, when boarding and alighting. The project aims to improve the berthing condition.

Dextra delivered more than 600 meters of GFRP (Glass Fiber Reinforced Polymer) rebars in straight and bending shapes for the reinforcement of the ferry pier structure.

Dextra GFRP rebar is a corrosion-free alternative to steel rebar. The continuous exposure to seawater and contaminants made it the perfect solution to substitute traditional steel rebars.

Source of images: https://www.devb.gov.hk/filemanager/en/content_1044/20170813_07.html, https://www.ceddreport201519.gov.hk/en/projects-services-detail/portworks

Reabilitação Mahatma Gandhi Setu

Reabilitação Mahatma Gandhi Setu

O Mahatma Gandhi Setu (também conhecido como Gandhi Setu ou Ganga Setu) é uma ponte que atravessa o rio Ganges em Bihar, na Índia, e conecta Patna e Hajipur. É a terceira ponte fluvial mais longa da Índia, com 5.750 metros de comprimento.

A ponte sofreu um considerável congestionamento de tráfego nas últimas décadas em consequência do aumento do número de automóveis que a atravessam, o que fez com que funcionasse no limite da sua capacidade e sobrecarregasse a estrutura. Foi necessária a substituição da superestrutura de concreto por estrutura de aço.

A Dextra participou neste projeto de renovação fornecendo acopladores RepairGrip para a ligação de cais antigos e novos topos de cais.

Barras totalmente roscadas também foram fornecidas para diversas aplicações durante a demolição da antiga superestrutura.

O flanco ocidental renovado foi aberto ao público em 31 de julho de 2020.

Calçada através da Baía do Kuwait

Calçada através da Baía do Kuwait (Jaber Causeway)

A Calçada Principal que atravessa a Baía do Kuwait é um projeto de 36 km de extensão que está sendo construído atualmente ao norte da Cidade do Kuwait. Em última análise, será conectado ao Doha Link, outro projeto de ligação marítima a oeste da cidade do Kuwait, que uniu a ligação marítima Jaber Causeway, um dos maiores projetos de engenharia civil já construídos no Oriente Médio.

A calçada principal através da Baía do Kuwait se estende ao norte da cidade do Kuwait. Espera-se que a ligação contribua grandemente para o desenvolvimento da parte norte do Kuwait. Para conseguir isso, a Calçada atravessará literalmente a Baía do Kuwait com uma ligação marítima de 27 km.

Pilares e vigas da ponte

Para a parte visível da ligação marítima, a Dextra trabalhou com a empreiteira Hyundai para oferecer soluções de barras pós-tensionadoras de alta resistência.

Barra Dextra Smooth PT As classes 835/1050 foram usadas ao longo de toda a ligação marítima para a conexão das vigas pré-moldadas.

Para parte da ligação marítima que é encimada por estrutura metálica atirantada. Foram utilizadas barras de maior desempenho na classe 1050/1200 para oferecer um ponto de ancoragem vertical entre o pilar e o reforço da estaca. As barras PT foram entregues com um acessório completo de proteção contra corrosão definido pela Dextra para que as barras resistam às condições marítimas.

Tubos Crosshole Sonic Logging

Para os testes de integridade do concreto das estacas de fundação onshore e offshore, a Dextra forneceu cerca de 400 mil metros lineares de tubos Sonitec, que são fáceis de montar e reconectar, sem necessidade de soldagem, o que aumenta significativamente a produtividade das montagens das estacas.

Depois de instalados, os tubos ficam firmemente no lugar, suportando sem problemas o levantamento e o manuseio da gaiola.

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