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Tag: compression struts systems

Maryah Plaza, UAE

Posted on by Sir Gwi

Maryah Plaza, UAE

Maryah Plaza is a commercial mixed-use development located on Al Maryah Island, designated to become the Emirates’ new business and lifestyle destination. The four water-adjacent towers comprise residential apartments, a 5-star hotel, and retail outlets. The project aims to create an open public space where users can walk freely across the development.

Dextra Compression Struts are used in one of the four towers of Maryah Plaza. The four sets of Compression Struts delivered by Dextra elegantly fit into the tower’s lobby floors, opening them up for waterfront views. Compression Struts support heavy structures; in this project, they serve as cross-bracing elements, enhancing the tower’s ability to withstand seismic loads.

Four sets of 60 cm-diameter Compression Struts were used in the project. These are the largest diameter and highest-performing Compression Struts Dextra has ever built. Thanks to a streamlined design and a convenient pin-and-fork locking feature, the sets were assembled on-site in just a week.

The Compression Strut is a circular hollow-section bar capped at both ends with threaded forks. This threaded fork design allows for easy assembly, enabling workers to put the struts together on-site in just minutes.

Abu Dhabi International Airport

Posted on by Sir Gwi

Abu Dhabi International Airport

Abu Dhabi Airport is the main airport of Abu Dhabi, the capital of the United Arab Emirates, located approximately 15 km east of the city. It is the second busiest airport in the UAE, after Dubai International.

Dextra has been involved in the construction of the new Midfield Terminal (Terminal 3), which is set to enter service at the end of 2017. This expansion significantly boosts the airport’s capacity and provides new gates for large airliners, such as the A380.

Dextra played a key role in several aspects of the new terminal, including the foundation, concrete structures, roof, and façade.

Foundations & Concrete structures

For the foundation piles, Bartec couplers were used to reconnect prefabricated cages forming the foundation piles, as well as for other concrete applications. This solution was complemented by the use of Sonitec sonic logging tubes. The tubes, used for Crosshole Sonic Logging (CSL) integrity testing, are delivered in segments that can be easily reconnected by hand thanks to their bell mouth, saving time during installation. A total of 650,000 Bartec couplers and more than 110,000 meters of Sonitec tubes were installed at the Abu Dhabi Midfield Terminal.

Roofing and Façade

For the roofing structure, the Dextra engineering team provided two customized structural solutions.

For all applications requiring structural members to work in compression, Dextra supplied its Compression Strut solution. Compression Struts are easy to install thanks to their fork ends and conveniently allow for minor length adjustments at each fork. A total of 529 Compression Struts were installed for this project.

For trusses where the force is in tension, Dextra supplied its Tension Rod Systems. Similar to the Compression Struts, Tension Bars are easily installed thanks to fork ends, provide adjustment capability at the forks, and feature in-line turnbuckles. Dextra’s Stainless range was selected for this application, ensuring unmatched aesthetics with its mirror surface finish.