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Reconstruction of Tai Po Kau Tide Gauge Station, Hong Kong

 

Reconstruction of Tai Po Kau Tide Gauge Station, Hong Kong

 

In the dynamic coastal landscape of Tai Po Kau, New Territories, Hong Kong, infrastructure projects demand robust and resilient solutions. One such endeavor, the Reconstruction of Tai Po Kau Tide Gauge Station project, required innovative materials to withstand the unique challenges posed by its environment. Dextra stepped in to provide approximately 1,000 meters of Glass Fibre Reinforced Polymer (GFRP) rebar for the ferry pier foundation, showcasing the efficacy of advanced composite materials in marine construction.

The Tai Po Kau Tide Gauge Station project aimed to revitalize the existing infrastructure, enhancing its resilience against tidal forces, corrosion, and environmental degradation. Recognizing the limitations of traditional steel reinforcement in marine environments, the project sought alternatives that could offer superior durability and longevity. Dextra’s GFRP rebar emerged as the ideal solution, offering exceptional resistance to corrosion, rust, and chemical degradation commonly associated with saltwater exposure.

GFRP rebar, composed of high-strength glass fibres embedded in a polymer matrix, delivers mechanical properties comparable to steel but with added benefits. Notably, GFRP rebar exhibits significantly lower thermal conductivity, reducing the risk of thermal bridging and enhancing structural integrity in extreme temperature variations. Furthermore, its non-magnetic properties eliminate electromagnetic interference, making it suitable for sensitive applications such as tide gauge stations.

The application of GFRP rebar within the Tai Po Kau Tide Gauge Station project encompassed both straight and bend bars, catering to the diverse structural requirements of the ferry pier. Dextra’s expertise in custom fabrication ensured precise bending and shaping of the rebar to fit the intricate geometries of the pier structure, facilitating seamless integration and minimizing construction complexities.

 

Nestlé LEO Factory, Thailand

 

Nestlé LEO Factory, Thailand

 

Nestlé LEO Factory’s reliance on precast elements necessitated a reliable, efficient method for joining the precast structure of the building. The construction utilized Groutec F, a well-known splicing system engineered by Dextra, to meet the exacting demands of the precast building. Groutec F allows for the connection of rebars without the need for bar end preparation and was used for the precast joint connection of beam and column in this project.

Groutec F is a fully grouted connection solution, ensuring robustness and durability in the face of dynamic operational environments. Engineered and manufactured in compliance with industry-leading standards such as Eurocode 2, BS 8110, ACI 318, IBC, and AASHTO, Groutec F guarantees adherence to rigorous structural specifications. It is compatible with major non-shrink grout brands readily available on the market, reducing logistical complexities and procurement lead times.

 

One Lake Club, Romania

 

One Lake Club, Romania

 

One Lake Club is a prestigious project promises to redefine luxury living in the Romanian capital. It aims to set new standards in urban living, offering residents an unparalleled blend of elegance, comfort, and functionality. The project encompasses a range of residential and recreational facilities, including luxury apartments, lush green spaces, and state-of-the-art amenities. With its ambitious vision and meticulous attention to detail, One Lake Club represents a beacon of modern architectural excellence in Bucharest.

As construction progresses on this ambitious venture, ensuring the structural integrity of the building is paramount. This is where Dextra’s Bartec couplers come into play. Renowned for their reliability and versatility, Bartec BF couplers provide robust connections between reinforcing bars, enhancing the strength and durability of concrete structures. In the case of the One Lake Club project, these couplers are specifically tailored for temporary opening applications, offering flexibility and efficiency in construction processes.

The 12mm Bartec BF couplers serve as the linchpin in the construction workflow, enabling seamless integration of reinforcing bars within the concrete framework. Their innovative design ensures quick and easy installation, minimizing construction time while maximizing safety and performance. By facilitating temporary openings in the concrete structure, these couplers enable efficient access for maintenance, inspection, and future modifications, thereby streamlining the construction process and ensuring long-term durability.

 

Uniqlo & Hive Indonesia Warehouse

 

Uniqlo & Hive Indonesia Warehouse

 

Indonesia’s building construction has spurred a need for rapid and efficient construction methods capable of meeting the demands of a burgeoning population. Precast construction has emerged as a solution to these challenges as it helps minimize on-site labor requirements, accelerates project timelines, and ensures consistent quality.

At the heart of successful precast construction lies the seamless connection between structural elements. Dextra supplied Groutec precast couplers for projects around the world, including Indonesia. Groutec in size 20mm were used in the Uniqlo & Hive Indonesia warehouse building project for joining precast columns, facilitating rapid and reliable assembly while ensuring structural integrity.

The couplers have minimized on-site labor requirements and accelerated project milestones. This not only translates to cost savings but also ensures timely delivery, allowing the building to fulfill its intended purpose sooner. Additionally, the couplers’ high-strength steel composition and stringent quality control measures guarantee robust connections that withstand the rigors of dynamic structural loads.

 

EnergyConnect – Whittens Buronga Substation

EnergyConnect – Whittens Buronga Substation

EnergyConnect project has emerged as a groundbreaking initiative that will revolutionize the sharing of electricity between New South Wales (NSW), Victoria, and South Australia. At the heart of this transformative project lies Dextra’s indispensable contribution – supplying almost 30,000 meters of Glass Fiber Reinforced Polymer (GFRP) rebar in diameters 13mm, 25mm, and 38mm. This not only marks a monumental step in the realm of construction but also propels the vision of a more sustainable and interconnected future.

The EnergyConnect Project

The EnergyConnect project is a testament to Australia’s commitment to enhancing energy infrastructure and promoting cooperation between states. This project aims to create a robust electricity transmission network that will enable efficient sharing of power resources across three states. As Australia transitions towards cleaner and more sustainable energy solutions, the EnergyConnect project plays a pivotal role in fostering a resilient and interconnected power grid.

Dextra’s Contribution

Dextra supplied a substantial quantity of GFRP rebar, showcasing its commitment to providing cutting-edge and sustainable construction materials. The use of GFRP rebar is a game-changer in the construction industry, offering a corrosion-resistant alternative to traditional steel reinforcement.

The 30,000 meters of GFRP rebar, ranging in diameters from 13mm to 38mm, were strategically incorporated to reinforce electrical transmission line and substation structures. This not only enhances the structural integrity of the infrastructure but also aligns with the broader goal of reducing the environmental impact of construction activities.

Advantages of GFRP Rebar

GFRP rebar, also known as Fiberglass Reinforced Polymer (FRP) rebar, brings several advantages to the construction table. Unlike traditional steel reinforcement, GFRP rebar is corrosion-resistant, making it an ideal choice for projects in regions with challenging environmental conditions. The EnergyConnect project, spanning multiple states with diverse climates, benefits immensely from this corrosion-resistant characteristic, ensuring the longevity and durability of the infrastructure.

Furthermore, GFRP rebar is significantly lighter than steel, simplifying transportation and handling during the construction process. This contributes to increased efficiency and reduced labor costs, making it an attractive choice for large-scale projects like EnergyConnect.

Laem Chabang

Laem Chabang

The Port of Laem Chabang, on the Gulf of Thailand, is the largest and busiest port in Thailand, before Bangkok port, and the 4th busiest port in South-East Asia. It is located in the Chonburi proving, a couple of hours drive from Bangkok and Dextra main production facility.

Dextra has been involved with contractor Italian-Thai for the engineering and supply of the steel structures behind Laem Chabang new pier.

Dextra engineered and supplied its Marine Tie Rods systems in Grade 700, the highest in our range.

Higher grades offer a improved performance/steel ratio compared to grades 355/510 and 500/660, allowing to pick smaller diameter bar which ultimately provide steel savings and facilitate logistics and installation efforts.

The rods making the long tendons were anchored into concrete piles and spliced with turnbuckles and couplers.

A total of 206 tons of marine tie rods have been supplied for this Laem Chabang expansion project.

Mubarak Al-Kabeer

Mubarak Al-Kabeer

Mubarak Al-Kabeer is a large seaport, located on the island of Bubiyan, East of Kuwait, opened towards the Persian Gulf.

Dextra has been involved on the Stage 2 of the first phase of the construction, between 2011 and 2012, together with Hyundai E&C, the contractor on this project.

For this large project, Dextra supplied marine tie rods to anchor the quay of the offloading facility.

The system provided were taking advantage of Dextra large diameters M134 tie rods, anchored into the combiwalls thanks to Ball Cages (± 10° rotation capability in all directions) and Captive Nuts (±5° rotation capability in all directions.

To accommodate the long tendons, provide adjustment length and offer additional flexibility during installation, turnbuckles and Hinge Couplers (± 90° vertical adjustment) were also added in line where required.

Manila International Container Terminal (MICT) – Berth 7

Manila International Container Terminal (MICT) – Berth 7

In 1988, International Container Terminal Services, Inc. (ICTSI) won the 25+25 year concession to operate the Manila International Container Terminal (MICT), one of the three terminals in the Port of Manila.

Since then, MICT has increased its annual capacity five-fold, becoming the largest and most modern container terminal in the Philippines.

It is now considered at par with the best terminals in the world with its guaranteed efficiencies and modernized operational and administrative systems.

MICT Berth 7 is the expansion project of the existing Berth 6 that will help alleviate congestion at off-dock container yards.

Dextra was involved in the project by supplying 110 sets of Marine Tie Bars, grade 700, bar diameter 85mm as an anchorage to tie back the main concrete wall casted on top of tubular steel piles to a sheet pile anchor wall connected with crane rail beam.

Dextra offers its marine tie bar solution in 3 steel grades, up to a yield stress of 700Mpa and 22 thread diameters, allowing a close match to the performance requirements and an economic use of material.

Aqaba Container Terminal

Aqaba Container Terminal

The Aqaba Container Terminal (ACT) is is located on the northern shores of the Gulf of Aqaba, in the Southern part of Jordan. It is the only container terminal in Jordan, and the second largest on the Red Sea in term of capcity.

Dextra participated to the creation of ACTs new berth between 2011 and 2012, as part of a project which aimed to increase the terminal capacity to 1.2 million TEUs. The expansion started operations in 2013.

For this project, Dextra has been supplying its Marine Tie Rods solutions to BAM International. Rods were supplied in Grade 500 in two different sizes: M105 and M125.

The long tendons were connected to the combi-wall on one side with a Dextra Ball Cage, allowing multidirectional angle of ±10 degrees, which greatly eases the installation process when at the same time addressing possible soil settlement.

On the opposite wall, tie rods were anchored using swivel plate and nuts, set up over waling beams. Dextra swivel accessories also allow a rotation angle of ±7 degrees in every direction.

For more information about our marine solutions in the Middle East, please consult our Dubai office

Port of Douala

Port of Douala

The Port of Douala is a large sea port opened to the Atlantic Ocean, part of the Wouri department in Cameroon. It is the main port of Cameroon and the busiest Central-African Port, with agreements that allow it to serve the countries of Tchad and Central African Republic, which do not benefit from a direct access to sea.

To support the ambitious development plan of Port Autonome de Douala, Dextra has been working with contractor BESIX for the engineering and supply of the steel structures support Douala Pier 51, a 165m-long quay wall.

Dextra engineered and supplied in 2015 systems of Marine Tie Rods in diameter M100 and in Grade 700, the highest in our range. Higher grades offer an improved performance/steel ratio compared to grades 355/510 and 500/660, allowing to pick smaller diameter bar which ultimately provide steel savings and facilitate logistics and installation efforts.

The rods making the long tendons, up to XXX meters long, were spliced with turnbuckles and couplers. The rods were anchored into the combi walls thanks to the use of Captive Nuts accessories, which allow a multidirectional rotation angle of 5° in order to ease the installation.

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