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私のデクストラ

カテゴリー: プロジェクト

The Broadway London, UK

投稿日: アーティスト: Sir Gwi

The Broadway London, UK

The Broadway London project consists of six buildings, ranging between 13 and 19 stories tall. This mixed-use development is located between Westminster and Victoria, directly adjacent to St. James’s Park Station, on a 1.7-acre triangular site.

The development includes 268 luxury apartments. Its ground floor will house 25,000 sq. ft. of high-end retail units, while the 1st to 3rd floors will provide 116,000 sq. ft. of prime commercial space. It also features a colonnade between the east and west buildings, with landscaped residents’ gardens on the roof terraces.

Dextra supplied over 20,000 units of グルーテックS couplers, installed in 1,200 square and circular precast columns.

グルーテック is a mechanical splicing system designed for the connection of precast elements in compliance with Eurocode 2, BS 8110, ACI 318, IBC, and AASHTO.

ドーハ リンク (ジャバー コーズウェイ)

投稿日: アーティスト: Sir Gwi

ドーハ リンク (ジャバー コーズウェイ)

 
Doha Link is a marine bridge project currently being built west of Kuwait City. It will ultimately be connected to the Main Causeway Across Kuwait Bay, another sea link project north of Kuwait City, which will make the Jaber Causeway sea link, one of the largest civil engineering projects ever built in the Middle East. The Doha Link stretches west of Kuwait City. It will ultimately solve traffic congestion and offer a direct itinerary thanks to a 7.7 km bridge structure built on shallow waters across the Kuwait Bay.  

Rebar splicing solution

デクストラは、陸上および海上の基礎杭を作る非常に大きな鉄筋ケージの接合に関する技術的ソリューションを提供するために、建設プロジェクトの初期段階に関与してきました。 ロールテック® couplers for large diameter rebar (32, 36, and 40mm) were used for the connection of cages and piers. Two grades of rebar are used across the project: ASTM Grade 60 and Grade 80. Rolltec is compatible by design with the higher ASTM Grade 80; the same couplers may be used on all applications, simplifying stock keeping. In addition, smaller diameter couplers for rebar 12mm and 16mm were used for the superstructure and the footing of light poles. One of the main advantages of Rolltec for remote projects is its very light machine setup. Rolltec is supported by a single one-man machine, offering a high level of productivity. Because the equipment is relatively small and the rebar preparation efforts were taking place simultaneously on both sides of the sea link construction, Dextra dispatched up to 4 machines on each side of the project to support the piling efforts.  

ソニテックチューブソリューション

With large piles of 2.5m diameter and 60m depth on average, it was compulsory for GS E&C to conduct sonic logging tests to examine the integrity of concrete piles, requiring the installation of 8 tubes in each cage. To achieve very long tube length and optimize cage preparation output, Dextra ソニテック was the preferred choice of the contractor. Thanks to its lightweight and unique Push-Fit® connection feature. Sonitec provides enough flexibility during the cage construction, lifting, and assembly of the cage and removes the need for additional time-consuming welding operations.

Wasl Tower, UAE

投稿日: アーティスト: Sir Gwi

Wasl Tower, UAE

The Wasl Tower is a 302m super-high-rise structure in downtown Dubai, surrounded by the Burj Khalifa, the tallest building in the world, and the new City Walk Development.

The tower will feature the world’s tallest ceramic façade, which will help regulate the internal temperature of the building while also reducing surrounding noise.

Moreover, vertical gardens and several shading and cooling design innovations will further minimize the building’s overall carbon footprint.

The project will comprise offices, residential areas, serviced apartments, and a 5-star Mandarin Oriental hotel, along with bars, restaurants, a spa, and a swimming pool.

高さ 300m の 3 つのコア耐震壁を 4 つの大型アウトリガーで接続する構造コンセプトでは、コンクリートの梁と柱を補強および接続するために高性能の鉄筋カプラーが必要です。

More than 280,000 バーテック standard couplers, weldable couplers, headed bars, and リペアグリップ swaged couplers were delivered for this purpose.

画像の出典: https://www.unstudio.com/en/page/11705/wasl-tower、https://www.facebook.com/UNStudioArchitecture/

SPARK Dry Port and Logistics Zone, Saudi Arabia

投稿日: アーティスト: Sir Gwi

SPARK Dry Port and Logistics Zone, Saudi Arabia

サウジアラビアのキング・サルマン・エネルギー・パーク（SPARK）のドライポートの開発は、東部州の物流状況に革命を起こそうとしている。この野心的なプロジェクトは、ダンマームとアルハサの間の重要なリンクとして機能し、経済成長目標とSPARK工業団地内でのアラムコの取り組みをサポートしながら、税関サービスを大幅に改善する準備ができています。

A noteworthy aspect of this groundbreaking venture is the extensive use of Dextra’s 2.4 million linear meters of Glass Fiber Reinforced Polymer (GFRP) rebar for slab-on-grade applications in areas subject to heavy loads.

GFRP rebar is a composite material made by reinforcing a polymer matrix with high-strength glass fibers. Unlike conventional steel rebar, which is susceptible to corrosion when exposed to moisture and aggressive chemicals, GFRP rebar is inherently corrosion resistant. This key attribute makes it an ideal choice for a wide range of construction applications, especially in harsh environments where traditional steel rebar would quickly deteriorate.

アクユ原子力発電所

投稿日: アーティスト: Sir Gwi

アクユ原子力発電所

アックユ原子力発電所は、トルコのメルシン県ブユケチェリにあるアックユに建設中の原子力発電所です。同国初の原子力発電所となる。

The four 1,200 MW VVER +3 units, with a total capacity of 4,800 MW, are the world’s first nuclear power plant project implemented on BOO (build-own-operate) principles by a subsidiary of Rosatom – Akkuyu NGS Elektrik Uretim AS (Akkuyu Project Company).

最初のユニットの大規模な建設は2018年3月に開始され、2023年に稼働する予定です。

2 号機の建設は 2 年後に始まり、2024 年までに完成する予定で、続いて 3 号機が 2025 年に、4 号機が 2026 年に完成する予定です。

Dextra は、これまでに 700,000 個を超える Fortec+ カプラーとロック ナットを、バーエンド処理装置とともに、4 つの反応器すべてと補助エリアで使用できるように提供しました。

Fortec+ は、ユーロコード 2、ASME Sec III Div 2 に準拠した、Ø12 ～ 50 mm (ASTM #4 ～ #18) のコンクリート鉄筋の接続用に原子力プロジェクト向けに特別に設計された平行ねじメカニカル スプライシング システムです。

With the addition of a lock nut, it was fully engaged onto the extended thread of the connecting bar and helps eliminate the residual deformation of the splice.

10 sets of bar end preparation system machines were also delivered at the site. The bar end preparation can be achieved in 3 steps: cutting the end of the rebar, cold forging to enlarge the sawn end of the rebar, and threading.

The Fortec+ system adds a fourth step, consisting of quality testing at the end of the rebar preparation process. The threaded bar end is tensile tested at 90% of the rebar yield strength to guarantee its performance.

写真提供: https://www.dailysabah.com/business/energy/construction-starts-on-2nd-unit-of-turkeys-1st-nuclear-power-plant-akkuyu?gallery_image=undefine# big (Energya および Natural による)資源省)

ヒンクリーポイントC原子力発電所

投稿日: アーティスト: Sir Gwi

ヒンクリーポイントC原子力発電所

ヒンクリー ポイント C (HPC) 原子力発電所は、ヨーロッパで最大かつ最も技術的に複雑なプロジェクトの 1 つです。

HPC は英国で一世代の間に建設された最初の原子力発電所であり、その建設には高度な熟練労働力と最高の建設およびエンジニアリング ソリューションが必要です。

The HPC Project is located in Somerset, South West England, and will consist of two nuclear reactors capable of generating 3.2GW of low-carbon electricity.

The new power station is being constructed in the same area as the existing Hinkley Point A and B stations. The former ceased operations some time ago, while the latter is decommissioned in 2022.

デクストラは、HPC の部品、特に原子炉の航空機衝撃保護シェルのコンクリート補強材のメカニカル スプライスの供給を委託されました。

More than 2.5 million Griptec couplers have been supplied for the construction of HPC.

Griptec is designed to comply with the most stringent project specifications, and has proven to be a popular system of choice for EPR nuclear power stations, having been used for the construction of the Flamanville 3, Taishan 1, and Taishan 2 power stations.

The Griptec mechanical splice consists of two steel sleeves which are swaged onto the end of the reinforcing bars by a specific machine that was designed and patented by Dextra.

This swaging machine incorporates a systematic, non-destructive pull test. Griptec is the only coupler system that provides an automatic quality control of each processed bar.

Besides Griptec couplers, Dextra is also supplying 3 million headed bars to the project. These are reinforcing bars that are bent on one side and fitted with an anchorage head on the other side and are used for the transverse reinforcement of concrete slabs, rafts, and walls. They allow a much faster and safer site installation than conventional double-bend bars.

When complete, HPC will provide low-carbon electricity for around six million homes.

福清原発5号機と6号機

投稿日: アーティスト: Sir Gwi

福清原発5号機と6号機

Fuqing Reactor 5 and 6 are the first reactors of Hualong One, based on a 100% Chinese design. Each reactor has a capacity of 1,000 MW, with operations scheduled to begin in 2019 and 2022.

Dextra has been present on-site since the construction of Reactor 5 began in 2015 and is now involved in Reactor 6.

For this challenging project, Dextra has been supplying its Griptec rebar splicing solution, which is used for 鉄筋の接合 in the APC shell.

Griptec is the preferred rebar splicing solution in the nuclear industry due to its unique performance level and automatic testing process, which systematically tests all connections as part of its standard cycle—guaranteeing that 100% of the connections exceed project requirements.

More than a million Griptec connections will be used over the years for these two projects, supported by two Griptec machines installed on-site.

Dextra is also supporting the contractor teams on-site with two Dextra engineers rotating to provide operator training, setup, and preventive maintenance services. This ensures optimal production day and night, especially during peak times.

泰山 EPR 1&2

投稿日: アーティスト: Sir Gwi

泰山 EPR 1&2

Taishan EPRs are two nuclear reactors of the EPR type, each with a capacity of 1,750 MW, built by Areva and located near Taishan in Guangdong province, China.

Dextra was present on-site from the beginning of construction in 2009 until 2016. Reactor operations were planned to start in 2017.

For this challenging project, Dextra supplied its Griptec rebar splicing solution, which was used in the concrete structure of the reactor.

The Bartec rebar coupler solution, as well as Headed Bars, was also used in other buildings of the project.

クダンクラム原子力発電所 (KKNPP) 3&4

投稿日: アーティスト: Sir Gwi

クダンクラム原子力発電所 (KKNPP) 3&4

クダンクラム原子力発電所 (KKNPP) は、インド南部タミル・ナドゥ州ティルネルヴェリ地区のクダンクラムに位置するインド最大の原子力発電所です。

Two reactors (KKNPP-1 and 2) have been operating since 2013 and 2016, respectively, while two more (KKNPP-3 and 4) are currently under construction following the groundbreaking ceremony held in February 2016.

KKNPP-3 および 4 は、ロシア設計の加圧水型原子炉 (モデル VVER-1000/V-412) です。これらの原子炉は、KKNPP-1 および 2 の設計を繰り返したもので、試運転と運転経験からのフィードバックに基づいてさらなる改良が加えられています。

For the construction of these two units, Dextra supplied 350,000 Bartec couplers to connect rebars in the reactor building, auxiliary building, and spent fuel storage structures.

Bartec is a trusted splicing system, well-known for its high performance in tension, compression, and fatigue. It is widely used in the construction of buildings, bridges, metro systems, nuclear reactors, and more.

Unit 3 is scheduled for completion in March 2023, with Unit 4 following in the subsequent year.

Upon completion, these two reactors will add 2,000 MW of electricity to the existing units, bringing the total site capacity to 4,000 MW.

画像の出典: https://twitter.com/daeindia/status/881395402171404288、https://www.deccanherald.com/content/619873/building-units-3-4-kudankulam.html

方城港原子力発電所3&4

投稿日: アーティスト: Sir Gwi

方城港原子力発電所3&4

中国は世界最大の原子力発電生産国の一つであり、新しい原子炉により原子力発電生産能力を継続的に拡大している。

Units 1 and 2 of the Fangchenggang Nuclear Power Plant have been operational since 2016, while Units 3 and 4 are currently under construction.

A total of six reactors are expected to be operational at the Fangchenggang site. Units 1 and 2 are both CPR-1000 reactors, while Units 3 and 4 are Hualong One reactors. The planned Units 5 and 6 are also expected to be Hualong One reactors.

Construction of Unit 3 began in December 2015, followed by Unit 4 a year later. Dextra has supplied more than 500,000 sleeves of グリップテック coupler for the reinforcement of the APC structure.

グリップテック is well known for its reliability and high performance in tension, compression, and fatigue, thanks to its unique design that meets the world’s most stringent project specifications, particularly for nuclear reactor construction.