デクストラグループ |信頼性の高い接続

Penny’s Bay and Kai Tak Community Isolation Facility, Hong Kong

Penny’s Bay and Kai Tak Community Isolation Facility, Hong Kong

Penny’s Bay and Kai Tak Community Isolation Facility (CIF) are quarantine units managed by the Hong Kong government’s Security Bureau (SB) Anti-Epidemic Task Force in response to the surge in COVID-19 cases in 2022.

The quarantine units consist of four-story buildings made of containers, with フォルテック+ couplers used for each module connection. These facilities were designed for temporary use and will be dismantled once the COVID-19 situation improves.

Fortec+ – BD-Approved Mechanical Splicing System

フォルテック+ is a parallel-threaded mechanical splicing system that includes a set of four bar-end preparation machines: cutting, 冷間鍛造, threading, and thread quality testing.

フォルテック+ is an approved system by the Hong Kong Buildings Department (BD), ensuring compliance with local construction standards. Read more about the approval

香港国際商業センター(ICC)

香港国際商業センター(ICC)

インターナショナル・コマース・センター(ICC)は、香港のランドマーク的な超高層ビルで、西九龍に位置しています。この商業ビルは高さ484メートル、108階建てで、現在も香港で最も高いビルであり、世界で13番目に高いビルです。

デクストラの貢献

この高さの超高層ビルにとって、垂直補強は重要な要素です。コンサルタントのARUPと施工業者のSanfieldは、構造全体の補強接合工事にDextraを選択しました。注目すべきは、両関係者が数年前に完成した高さ400mを超えるもう一つの象徴的な超高層ビル、Two IFCプロジェクトでもDextraと協業していたことです。

このプロジェクトのために、デクストラは80万台以上の フォルテック 鉄筋カプラーは主に垂直接合、特に柱の接合に使用されていました。

さらに、鉄筋カプラーは、通常、次の間の第 2 フェーズの鉄筋再接続用の接続ポイントを提供します。

  • 柱とスラブ
  • 柱と梁

これらの用途では、鉄筋カプラーは水平方向に整列し、コンクリートに打ち込まれました。再接続作業は、後から第二段階の鉄筋をねじ込むだけで完了しました。

香港で推奨されるスプライシングソリューション

フォルテック 香港建築材料リストで正式に推奨されているため、香港の請負業者の間で好まれる補強接合ソリューションです。

Dextra は香港に独自の鉄筋ねじ切り工場も運営しており、顧客に鉄筋準備サービスを提供しています。

Burj Khalifa, UAE

Burj Khalifa, UAE

With a total height of 829.8 m and a roof height of 828 m, Burj Khalifa is currently the tallest building in the world, holding this record since its topping out in 2009.

Originally named Burj Dubai, the tower was renamed in honor of Khalifa bin Zayed Al Nahyan, the ruler of Abu Dhabi and president of the United Arab Emirates.

This iconic skyscraper quickly became a symbol of Dubai’s ambition to transform into a global tourist hub and gain international recognition.

Structural System

The tower’s structure consists of reinforced concrete construction from the foundation up to Level 156. Above Level 156, the structure transitions into a steel-braced spire. The construction required 330,000 m³ of concrete and 55,000 tons of steel rebar.

The foundation system is a piled raft, consisting of a 3.7 m thick raft supported by 1.5 m diameter bored piles, each extending 50 m below the raft base.

デクストラの貢献

Extensive pile load tests were conducted on the tower’s foundation. Additionally, Crosshole Sonic Logging (CSL) testing was performed to ensure the integrity of the concrete foundation, using 20 km of Dextra ソニテック tubes.

ソニテック is a fast, simple, and reliable solution for CSL testing, compliant with ASTM D6760, the standard for ultrasonic cross-hole integrity testing.

Moreover, more than 100,000 バーテック couplers were supplied for the piled-raft extension and reinforcement.

Marina Bay Sands, Singapore

Marina Bay Sands, Singapore

Marina Bay Sands is a spectacular resort featuring more than 2,500 rooms, a casino, numerous restaurants, and a distinctive sky garden. The project was completed and opened to the public in 2010.

Between 2007 and 2008, Dextra supplied バーテック 強化 スプライシングソリューション and Sonitec tubes for the project.

バーテック rebar couplers were used in the foundations for 地中隔壁, addressing a dual challenge:

  • Vertical connections: Rebar couplers were used to connect D-Wall cages, enabling longer cage lengths.
  • Horizontal connections: couplers were installed on hook bars and cast in concrete as pending connections for slabs. At a later stage, second-phase rebar could be easily connected to initiate slab 強化.

Couplers were also used in underground tunnels and the ventilation building.

For the foundations, Dextra supplied over 100,000 linear meters of ソニテック CSL testing tubes, which are easy to install in 強化 cages and reconnect. These tubes enhance productivity by eliminating the need for tedious and unreliable welding operations. Once installed, they remain securely in place, ensuring stability during cage lifting and handling.

House of the Earth at Geomatikum, Germany

House of the Earth at Geomatikum, Germany

Adjacent to the Geomatikum building, home to various departments and research centers of the University of Hamburg, the new “House of the Earth” is taking shape. Spanning over 21,000 square meters, this state-of-the-art facility will serve as a hub for geoscience and climate research. Beginning in 2018, all units of the CliSAP (Integrated Climate System Analysis and Prediction) excellence cluster will operate from this location, fostering close collaboration with the Max Planck Institute for Meteorology.

During 2016 and 2017, Dextra supplied its グリップテック system for the splicing of cast-in-place reinforcement across various sections of the building. グリップテック couplers, fully approved by DIBt (Deutsches Institut für Bautechnik) for the German construction market, are available throughout Germany via our extensive distributor network.

For more details on グリップテック availability in Germany, please contact Dextra Europe.

SOCAR Tower, Azerbaijan

SOCAR Tower, Azerbaijan

SOCARタワー is an office tower located on the way to the city center of Baku, the capital of Azerbaijan. It is the tallest building in Azerbaijan and the entire Caucasus region. The building serves as the headquarters of the State Oil Company of Azerbaijan Republic (SOCAR).

The tower features 42 floors and reaches a height of 202 meters. Completed in 2016, it is now one of the most recognizable landmarks in Baku.

For this project, Dextra was involved in the concrete works between 2011 and 2014, supplying the バーテック rebar coupler solution for all rebar connections. The project was supported by バーテック bar-end preparation equipment sets, installed directly on-site and maintained by Dextra’s European after-sales team.

Dextra rebar couplers were supplied to contractor Tekfen for:

  • Vertical bar-to-bar connections in columns.
  • Horizontal rebar connections in slabs.
  • Wall-to-beam connections, where the coupler was cast flush with the formwork in the first phase of concreting. After formwork removal, the connecting rebar was simply screwed into the Bartec coupler.

To enable splicing at locations where rebar had not been prepared with a thread, リペアグリップ sleeves and hydraulic equipment were also supplied for precise applications. リペアグリップ allows for the convenient splicing of rebar where the protruding length is insufficient for a safe overlap.

For more information about the availability of precast solutions in the Middle East, please contact our ドバイオフィス.

Gaborone i-Towers, Botswana

Gaborone i-Towers, Botswana

The i-Towers are a three-building mixed-use estate project located in the heart of the new Central Business District of Gaborone, the capital city of Botswana.

The project was designed and built by Murray & Roberts Botswana and features a 21-story residential tower, a 14-story office tower, a commercial building, and parking spaces.

For this new Gaborone landmark, Dextra supplied its バーテック rebar coupler solutions, the leading rebar splicing solution used in Botswana and South Africa.

バーテック is often the preferred solution for high-rise projects due to the reliability of its rebar preparation process, its high-performance level, and the productivity gains it offers during reinforcement installation.

In total, more than 20,000 バーテック rebar couplers were used for columns and slabs in the two i-Towers.

For more information about coupler products and equipment availability in Botswana and South Africa, please contact our パリオフィス.

Sobha Dream Acres, India

Sobha Dream Acres, India

Sobha Dream Acres is a large residential complex spanning 81 acres, located east of Bangalore, India. This ambitious real estate project features 13 towers of 14 floors, built in record time thanks to the use of precast construction methods, supported by a purpose-built factory equipped with Vollert machinery.

For this project, Dextra provided the owner and contractor, Sobha, with two distinct coupler solutions, supported by threading services.

At Sobha Dream Acres, the グルーテック precast solution was used for the swift connection of precast elements, either to a footing or directly to another precast element. This ensured a high-performance connection and significantly sped up installation compared to traditional wet in-situ joint methods.

After casting on the production line, the panel was transported to its final location for straightening and bracing installation. Locally sourced non-shrink grout was then injected into the cavity. After injection, the bracing around the precast panel could be removed after just three days.

Dextra does not supply the grout, as グルーテック is designed to be compatible with multiple non-shrink grout brands that can be sourced locally, reducing costs and simplifying logistics.

To complement the precast solution, Dextra also supplied its バーテック 解決。 バーテック was used throughout Dream Acres to splice reinforcement for both cast-in-place and precast applications, allowing for extended precast element lengths.

To support both solutions, Dextra India managed the rebar preparation operations. Rebars with バーテック-threaded ends were delivered directly to Sobha according to their production schedule. The same threaded bars could be used interchangeably with both バーテック そして グルーテック couplers, as both solutions utilize the same threading system.

Parque da Cidade, Brazil

Parque da Cidade, Brazil

Parque da Cidade is a multi-tower, multi-purpose green building complex located in the south of São Paulo. The project features five corporate office towers, a hotel, residential buildings, and a shopping mall.

For this project, Dextra supplied its ロールテック rebar coupler solution to contractor Odebrecht.

ロールテック is the most popular rebar splicing solution in Brazil, offering a competitive alternative to lap splices and, more importantly, enabling advanced applications that simplify project management and operations.

At Parque da Cidade, ロールテック rebar couplers were used to connect columns and beams. The solution was supported by ロールテック bar-end preparation equipment installed on-site and maintained by Dextra’s local engineers.

For this application, rebar couplers were aligned horizontally within the column reinforcement at each floor and cast into concrete. Dextra provided its couplers with thread protection caps to prevent liquid concrete from leaking into the couplers.

At a later stage of the project, continuation bars were directly connected into the couplers, providing convenient starter bars for beam or slab reinforcement.

Additionally, Dextra supplied its ユニテック solution for Parque da Cidade. ユニテック is a bolted coupler that does not require any rebar preparation. It was used to connect rebars protruding from two precast elements.

Car Servicing Building on Kung Chong Road, Singapore

Car Servicing Building on Kung Chong Road, Singapore

The Car Servicing Building at 2 Kung Chong Road in Singapore is a mixed-use, 7-story facility featuring a basement car park, a car servicing center, and office space. The building will be occupied by the Automobile Association of Singapore.

This project, built by Zhengda Corporation Pte Ltd, utilizes プレキャスト technology to achieve faster construction cycles. The プレキャスト elements were produced by the Malaysian precaster Eastern Pretech.

For this project, Dextra supplied approximately 6,000 グルーテック couplers to the precaster, which were embedded into shear walls and column elements.

プレキャスト elements were then transported to the site and reconnected to protruding 強化 by injecting non-shrink grouting mortar. Bracing around the プレキャスト elements is typically removed within three days of the grout injection, significantly reducing assembly time.