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Olympic Velodrome

Olympic Velodrome

The Olympic Velodrome, now renamed as Lee Valley VeloPark, is a multipurpose sport facility located in East London. The facility was initially built to host the 2012 London Olympics and Paralympics. The facility still features road course tracks and BMX tracks and hosts international cycling competitions.

For this project, Dextra Europe delivered the Griptec rebar splicing solution to contractors Sir Robert Mcalpine and Byrne construction.

The Griptec splices were mostly use to provide vertical rebar connections in the velodrome columns.

Our Griptec solution was supported by Dextra’s local distributor in London which hosts the Dextra Griptec equipment required for the extrusion of the Griptec sleeves onto the rebar.

Griptec is a CARES TA1-A, TA1-B and TA1-C approved solution, making it suitable for even the most advanced rebar splicing applications and stringent project requirements.

Khaosiung National Stadium

Khaosiung National Stadium

The National Stadium of Khaosiung is a large open air stadium located in the Zuoying district of Kaohsiung, Taiwan. It was formerly known as the World Games Stadium or Takao Stadium. This is a multi-purpose stadium and currently the largest sport facility of Taiwan in term of capacity: 55,000 seats.

The arena was built in 2007 in anticipation of the 2009 World Games. Its main purpose now is to host football / soccer events, although its particular non circular shape also make it suitable venue to host baseball events.

For this project, Dextra supplied carbon steel Tension Bars used as cross-bracing incorporated into the secondary trusses of this complex steel structure, revealing the “nest-shaped” architecture of the stadium.

Brasília Mané Garrincha Stadium

Brasília Mané Garrincha Stadium

The Brasilia Stadium, also called Estádio Nacional Mané Garrincha or National Stadium of Brasilia, is a football and multipurpose arena which was rebuilt between 2010 and 2013 in preparation of the 2014 FIFA Worldcup in Brazil.

The 2013 version of the stadium can sit up to 72,000 people, making it the second largest stadium in Brasil in capacity.

For this project, Dextra Do Brasil delivered to contractor Grupovia & Andrade Gutierrez its Rolltec rebar coupler solution as well as Rolltec Headed Bars.

Rolltec is the most popular rebar slicing solution in Brazil, providing a competitive alternative to lap splices and more importantly allowing advanced applications simplifying project management and operations.

For the called Estádio Nacional Mané Garrincha, rebar couplers were used as a way to connect rebar cages which have been previously prefabricated on the ground.

Rolltec allow a swift rebar cage reconnection by simply pulling the coupler by hand from the top cage to the bottom cage. In total, more than 57,000 Rolltec couplers were used the columns of the stadium.

6,000 Rolltec Headed Bars were also used on this project as a replacement to hook bars in congested parts of the reinforcement. Rolltec Headed Bars use the same standard thread profile as coupler, simplifying rebar production.

The Rollltec solution was supported by a Rolltec machine installed at the stadium construction site. The commissioning and maintenance of the machine was done by Dextra do Brasil local engineers, ensuring the training of operators and guaranteeing high productivity of the equipment.

São Paulo Arena Corinthians

São Paulo Arena Corinthians

The São Paulo Arena Corinthians is a football and multipurpose stadium which was built between 2011 and 2013 in preparation of the 2014 FIFA Worldcup in Brazil.

The stadium has a capacity of 49,000 people, making it the fifth largest stadium in Brazil in term of capacity.

For the construction of the stadium, 80% of the structural elements were made thanks to precast techniques, of which 40% were produced directly on the precast plant set up on site.

For this project, Dextra Do Brasil delivered to contractor Odebrecht, main contractor on this project, its Rolltec rebar coupler solution.

On the São Paulo Arena Corinthians project, Rolltec rebar couplers were used inside the precast elements to provide connections between slabs, beams and columns.

To allow the use of a coupler in the precast element, a rebar ended with a A-type thread is cast into the precast element, with ist thread being protected by a pocket former.

rolltecpocketformer

Once set up at its final location, the pocket former is removed and the space around the thread allows to conveniently screw a Rolltec coupler from the opposing rebar (B-type thread). More than 45,000 Rolltec couplers were used for the rebar connections on the Arena Corinthians. The coupler solution was supported by a Rolltec rebar preparation equipment, installed on site, and Dextra team of engineered in charge of training operators and rolling out preventive maintenance to ensure the equipment was used as its maximum capacity.

Al Haffar Abu Dhabi Police Training Facility

Al Haffar Abu Dhabi Police Training Facility

The Al Haffar Abu Dhabi Training Facility is a project by the Abu Dhabi Ministry of Interior. Dextra has been involved on the construction of the tribune facing a police shooting training area. The project is lead by contractor Express Facility Management.

For the construction of the seating area, Dextra supplied its Groutec precast connection solution to local precaster Techno Cast Precast to anchor the footing of large precast “L-shaped” cantilever elements, which ultimately will span over the tribunes.

At the bottom of each pile, 18 Groutec sleeves were installed, fitting on Ø32mm rebar (Bartec threaded rebar is widely available in the UAE through Dextra network of distributors).

Precast connection with Groutec

 

For more information about Dextra precast solutions available in the United Arab Emirates, please contact our Dubai office.

Emirates’ Bustanica Vertical Farm

The World’s Largest Vertical Farm

Emirates’ Bustanica Vertical Farm is the world’s largest vertical farm, a sprawling indoor farming facility spanning an impressive 330,000 square feet. This state-of-the-art facility plays a crucial role in providing fresh, locally sourced in-flight food for Emirates and several other airlines operating at Dubai International Airport. At the core of this groundbreaking project lies meticulous engineering, and one crucial component that contributes to its success is the use of Dextra Groutec couplers for the precast shear wall module connections.

This vertical farm employs cutting-edge technology to cultivate a diverse range of crops in a controlled environment. By stacking layers of crops vertically, the facility maximizes space utilization while minimizing resource consumption. The result is a sustainable and efficient system that produces fresh, high-quality produce year-round, regardless of external climatic conditions.

The Role of Dextra Groutec Couplers

In any construction project, the choice of materials and components is critical to ensuring structural integrity and long-term durability. In the case of the world’s largest vertical farm, the engineers faced the challenge of connecting precast shear wall modules securely. The solution came in the form of Groutec L couplers with a diameter of 25mm.

Groutec couplers are renowned for their reliability and strength in connecting precast concrete elements. These couplers provide a robust and efficient means of joining precast concrete components, ensuring the structural stability of the entire facility. The 25mm diameter was carefully selected to meet the specific requirements of the shear wall modules, offering a seamless connection that enhances the overall resilience of the vertical farm.

The Groutec couplers not only facilitate the structural integrity of the vertical farm but also align with the project’s commitment to sustainability. The durability and reliability of these couplers ensure that the connections withstand the test of time, supporting the longevity of the facility and its contribution to sustainable agriculture.

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