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分类： 项目

My Home GRAVA Hyderabad, India

发表于 通过 Sir Gwi

My Home GRAVA Hyderabad, India

 

在印度海得拉巴的中心地带，一个卓越建筑和工程创新的宏伟见证——My Home GRAVA 项目正在形成。这个大型项目由八座 43 层高的塔楼组成，是现代生活和建筑行业技术进步的象征。 Dextra 是这一大型企业成功的关键贡献者之一，它是为建筑行业提供创新解决方案的全球领导者。

优化设计和施工：

GRAVA 背后的富有远见的开发商 My Home Construction 不遗余力地确保设计和施工方法的优化。从规划的早期阶段开始，我们的重点就是交付一个不仅重新定义奢华生活，而且为建筑效率和可持续性设定新基准的项目。

Dextra 耦合器：结构革命：

At the core of GRAVA’s construction success is the implementation of 570,000 格鲁泰克 couplers and more than 70,000 巴特克 couplers for all structural connections within the concrete frame. These couplers play a pivotal role in ensuring the structural integrity of the buildings, providing a secure and efficient connection between the precast elements.

这 格鲁泰克 和 巴特克 couplers are known for their high-performance capabilities, making them ideal for large-scale and complex projects like GRAVA. These couplers eliminate the need for traditional lapped splicing, offering a faster and more reliable alternative for connecting and reinforcing concrete structures and precast concrete elements. This not only accelerates the construction process but also enhances the overall durability and safety of the structure.

As the My Home GRAVA project continues to rise and reshape the skyline of Hyderabad, it stands as a testament to the successful collaboration between visionary developers and innovative construction solution providers. 格鲁泰克 和 巴特克 couplers have played a crucial role in the seamless construction of the eight 43-storey towers, contributing to the project’s efficiency, strength, and durability.

该项目不仅承诺提供奢华的生活体验，还为印度卓越建筑树立了新标准，Dextra 的贡献为其成功留下了不可磨灭的印记。

 

孟买跨港连接线

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孟买跨港连接线

The Mumbai Trans Harbour Link (MTHL) is a 22 km-long road bridge in India, connecting the Mumbai Metropolitan Region with its satellite city, Navi Mumbai.

Also known as the Sewri-Nhava Sheva Trans Harbour Link, the bridge begins in Sewri, South Mumbai, crosses the Thane Creek via a 16.5 km-long bridge, and terminates in Chirle village, near Nhava Sheva.

This colossal project features a 6-lane highway, 27 meters wide, along with two emergency exit lanes. Designed to accommodate approximately 70,000 vehicles per day, the bridge is expected to significantly reduce the notorious traffic congestion in the Greater Mumbai area.

Originally envisioned more than 35 years ago, actual construction only began in 2018. Once completed, it will be India’s longest sea bridge.

 

Dextra’s Contribution

Dextra played a key role in this project by supplying over 30,000 索尼泰克 sonic tubes. These tubes facilitate Cross Sonic Logging (CSL) testing, a method used to assess the structural integrity and homogeneity of concrete within barrette piles.

With a conveniently enlarged bell-mouth design, Sonitec tubes enable the seamless connection of two tubes, making installation quick and efficient within reinforcement cages.

 

CCTV Headquarters, China

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CCTV Headquarters, China

The CCTV Headquarters building is a landmark tower located in the Central Business District of Beijing. The tower houses the operations of China Central Television (CCTV) and has been one of the architectural landmarks of the Chinese capital since its completion in 2012.

For this project, Dextra was involved in providing China State Construction Engineering Corporation with an anchoring solution for the columns that ultimately support the building’s bridge-like complex architecture.

Anchoring the structure was particularly challenging due to the building’s height (234 meters) and its distinctive, complex shape. Additionally, since the building is located in a seismic zone, it needed to be constructed to withstand additional loads.

Dextra supplied high-tensile post-tensioning bar systems in large diameters. The post-tensioned system was designed to lock the metallic structure at the base of the mega columns and anchor them into a heavily reinforced mat.

The large PT systems (bars and plates) were equipped with additional corrosion protection accessories, including tubes and injection ports, allowing for grout sealing.

瓦朗谢讷弓弦

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瓦朗谢讷弓弦

The Valenciennes Bowstring is a 2-kilometer-long bridge construction project that will connect the Saint-Saulve roundabout with the Bruay-sur-l’Escaut roundabout (North). It features a 76-meter-long bowstring bridge, a double-girder engineering structure, a pedestrian footbridge, and a wildlife passage.

Dextra, in collaboration with its local partner, Freyssinet, supplied a tension rod system as a hanger for the bowstring arch bridge on the bypass, ensuring the structure’s stability.

The tension rod system is renowned not only for its high performance but also for its customizable parameters, including design load, surface finish, and corrosion resistance, to meet all technical and aesthetic project requirements.

 

Jumeirah Beach Residence, UAE

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Jumeirah Beach Residence, UAE

Jumeirah Beach Residence is a large waterfront residential complex located along the Persian Gulf in Dubai Marina, United Arab Emirates.

The residential area comprises more than 40 towers, many of which reach 40 stories. In total, Jumeirah Beach Residence can accommodate over 15,000 residents.

Dextra Middle East, also based in Dubai, was involved in numerous tower packages between 2003 and 2005.

Foundation Piles

To provide vertical connections in foundation piles, Dextra supplied its popular 巴特克 rebar coupler solution—the most trusted rebar 连接方案 in the Middle East—through its fabrication partners.

As a complement to the couplers, more than 70,000 meters of 索尼泰克 tubes were supplied to the 桩 contractor, offering a practical and safe method for assembling sonic tubes and significantly boosting productivity.

筏和柱

巴特克 couplers were also used for horizontal connections in the thick foundation rafts and vertical connections in the protruding columns.

Core Wall-to-Beam 应用领域

In the superstructure, 巴特克 couplers were used for horizontal connections between the core walls and beams.

For this application, couplers were cast into the 心墙, flush with the formwork. A thread protection cap, supplied by Dextra, prevented concrete leakage into the 巴特克 耦合器。

At a later stage, continuation rebars, pre-threaded with 巴特克 threads, were connected into the pre-installed couplers, creating starter bars.

佩列沙茨桥

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佩列沙茨桥

The Pelješac Bridge construction aimed to connect the mainland to the Pelješac Peninsula, eliminating the need for ferry services and significantly reducing travel time between these regions. Dextra’s Fortec couplers played a pivotal role in connecting the pile reinforcement cages, ensuring the bridge’s structural stability.

A total of 85,000 Fortec couplers, in sizes ranging from 16-50 mm, and in Types A, B, and C, were used in the construction of the Pelješac Bridge. These couplers securely connected the pile reinforcement cages, ensuring the long-term stability and safety of this critical infrastructure.

宿雾-科尔多瓦连接高速公路（CCLEX），菲律宾的巨型桥梁

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Cebu-Cordova Link Expressway (CCLEX), a colossal bridge in the Philippines

Cebu–Cordova Link Expressway is one of the biggest infrastructure projects being undertaken in the Philippines. The project features a combination of a causeway, a gigantic cable-stayed bridge that will cross the navigable zone of the Cebu Strait, two 高架桥, and four low-height bridges, as well as roadways and pedestrian walkways. The CCLEX Project aims to provide better transport facilities while reducing traffic congestion in the region, as well as to improve connectivity within Cebu City. It is also intended to support Cordova’s economic growth, as the expressway will position the city as the gateway for island tourism. Also known as the Third Mandaue–Mactan Bridge, the official groundbreaking of the toll bridge was in 2017, with the completion being scheduled for 2022.

连接宿雾岛和麦丹岛的斜拉桥

After its completion, the Cebu-Cordova Expressway will link the Cebu mainland and Mactan Island through Cordova town. The 8.5 km-long toll bridge will feature two lanes that will serve up to 40,000 vehicles a day. The main bridge will be built with a 400-meter cable-stayed main span, with 60-meter navigation clearance, allowing ships to easily navigate through the expressway. The main bridge of the expressway will connect the Guadalupe River to Shell Island in Cordova, while its colossal 高架桥 will link it to the causeway and road networks to Mactan.

Dextra Bartec, reinforcing solutions for the construction of the Cebu-Cordova Bridge

The design and the construction of this megaproject are undertaken by the Cebu Link Joint Venture (CLJV). The CLJV is a joint-venture partnership between the Spain-based Acciona Construccion S.A. and the Philippines-based First Balfour Inc. and D.M. Consunji Inc. For the 钢筋/增强筋 of the colossal expressway’s foundations, the contractor has chosen Dextra’s well-known rebar 连接方案 巴特克. More than 35,000 units of Standard, Bridging, and Transition splices of steel grade 75, both in diameters 40 and 50, have been applied to the foundations’ 桩 cages as of July 2018. Moreover, to provide better end anchorages in congested areas, the CLJV opted for Dextra Bartec 有头条, which are also known as end anchors. Bartec end anchors are a convenient alternative to 弯钩, traditionally used for anchoring. For more information about rebar coupler availability in the Philippines, please contact our 曼谷办事处.

西门隧道

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西门隧道

西门隧道项目将为西门大桥提供一个重要的替代方案，提供急需的第二条河流交叉口、更快、更安全的旅程，并从住宅街道上拆除数千辆卡车。

该项目将通过亚拉维尔地下的双隧道和高架 Footscray 路，将亚拉维尔的西门高速公路与墨尔本港和港区的 CityLink 连接起来。

高架路包括300个不同高度的桩。这些桩已在靠近工地的地方分多个部分预制。垂直后张拉杆将每根桩的所有段组装在一起。

这种桩的施工方法越来越常见，但无论是在方法说明还是产品定义方面都需要完美的准备。每个细节都是安装成功的基础。

Dextra 向 Freyssinet 提供了超过 1,000 吨的 Freyssibar+ 系统，等级为 930/1080 MPa，公称直径为 72mm 和 55mm，以及用于垂直永久应用的 7,500 个锚具。

通过 DEXTRA、Freyssinet 后台（技术部门和 Freyssinet 产品公司）和工作现场工作人员（Freyssinet 主要项目和 Freyssinet 澳大利亚）之间的密切合作，后张法系统已完美适应该项目的需求。

钢筋直径、钢级和锚固设计已根据澳大利亚标准通过资格测试进行验证，展示了系统的性能。

该杆系统可用于后张法、预应力地锚以及任何涉及临时或永久拉杆、提升、悬挂、预应力拼接等的应用。

重大项目于2018年1月开工建设。

Mecca Mataf Expansion, Saudi Arabia

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Mecca Mataf Expansion, Saudi Arabia

Mataf is the area surrounding the Kaaba, the center of the holiest mosque in Islam, located within the Grand Mosque of Mecca. It is where the Tawaf, the counterclockwise circumambulation around the Kaaba, takes place.

The Mataf expansion is a large-scale project aimed at adding 1,300,000 sqm to the existing 400,000 sqm of space. The renovation will feature a new basement and three additional floors, increasing capacity for hundreds of thousands of additional worshippers.

For this significant project, Dextra Middle East has been involved in supplying rebar couplers and anchor solutions.

Mega Columns

For the mega columns, Dextra provided contractors with a solution to connect cages vertically while accommodating potential misalignment. This was achieved using 巴特克 caging assemblies, which allow for a misalignment adjustment equivalent to one bar diameter.

In addition to enabling reconnection, the 巴特克 caging assemblies were also used to temporarily lock the large column template (visible in red in photos) to ensure the correct setup of column reinforcement.

Mega Column Footing

右旋糖苷 巴特克 钢筋锚固板, which use the same type of threads as the couplers, were also installed at the footing of the mega columns to address reinforcement congestion.

The anchors, compact and easy to install, can be set on bars during the final stage of reinforcement installation. In this project, the anchors were installed from the top of the raft onto the vertical bars. More than 100,000 钢筋锚固板 were used in this type of application, appearing as X-shaped reinforcement at the column footing.

Column-to-Beam Connections

For more standard applications, 巴特克 couplers were also used to create horizontal connections between the columns and beams.

巴尔-博尔贾雷高速公路 – 四个高架桥

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Bar-Boljare highway – Four 高架桥

The Bar-Boljare Highway Project is a key infrastructure project led by the Ministry of Transportation and Maritime Affairs of Montenegro. It aims at improving the connections within the country and also between Montenegro and the rest of Europe to boost the country’s economy and tourism.

The project, built by China Road and Bridge Corporation (CRBC), embodies a new successful example of the cooperation between China and Eastern Europe. The new 2×2-way highway spans over 40 km. It is built in challenging terrains and yet satisfies both EU & Montenegro standards of road infrastructure. Its schedule is ambitious too: both roads and 高架桥 should be built in under 4 years. For the Bar-Boljare Highway Project, Dextra supplied its Bartec rebar coupler solution, used for the splicing of rebar in the piles of the four 高架桥. Dextra Bartec 连接方案 was chosen on that project for its compliance with ISO 15835 S2, which defines rebar couplers and 钢筋/增强筋 to be resistant to violent earthquake conditions. A total of 230,000 Bartec rebar couplers have been supplied to CRBC.