分类： 消息

新的尚普兰大桥是一座长 3 公里的桥梁，横跨加拿大魁北克省蒙特利尔东南入口处的圣劳伦斯河。

The Champlain Bridge is one of the busiest bridges in Canada and plays an important economical role for its city as it is part of the main itinerary to the United States, accessible 60-km South.

For this project, Dextra is supplying its Rolltec 机械钢筋拼接 system, in both Carbon Steel and Stainless Steel versions. 罗尔泰克 is a certified system by the Department of Transportation of the State of Quebec.

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This year again, Dextra lined up 2 teams of 12 runners at Peak24 race in Hong Kong! The teams were featuring a mix of Dextra Guangzhou and Dextra Hong Kong staff, pushing together their limits for the good cause and in an incredible atmosphere!

Peak 24 Race is a charity race aiming to raise awareness about slavery and human trafficking problem in the world, and especially in Asia. Funds raised by Peak24 will be donated to the 24 Hour Race, a Hong Kong-founded & international youth charity which inspires students in five countries to join the movement to eradicate modern slavery. The profits raised from us will directly benefit the expansion of the 24 Hour Race movement.

In the United Arab Emirates, Dextra recently delivered a new Oil and Gas project. Dextra tension rods have been used for the support of structure supporting very large liquid gas tanks.

For this application, Dextra engineered, manufactured and delivered bar assemblies based on Carbon Steel bars Gr.355 of diameter Ø120mm. Each 张力杆 system is composed of two segments spliced at the lower half of the assembly. The system is mounted onto gusset plates thanks to their fork ends, which can be connected to the structure in just a few minutes by simply sliding in a pin in the middle of the fork.

For length adjustment and tightening, turnbuckes, positionned at the lower half of each tendon, are simply rotated to bring bar segments closer to each other and tension the overall system.

利雅得地铁是沙特阿拉伯利雅得正在建设的大型城市交通系统项目。该项目将沿 6 条公交线路建设 85 个车站，铁路总长度达 176 公里。预计该系统在 2018 年启用时每天将服务至少 100 万名乘客。

For this large infrastructure project, Dextra Middle East has been involved on various stations and packages.

挖掘工程

Before proceeding with general construction works, during early excavation phase, it is required to anchor retaining walls back into the stable ground in order to prevent any wall displacement. This will allow to keep excavating in a safe environment.

For that purpose, Dextra supplied steel ground anchors installed through retaining wall. Each system is based on a high-tensile fully threaded bar, coming with nut and plate, and grouted to provide bonding with the soil.

筏式和垂直连接

Bartec 钢筋连接器 were supplied for the works in the stations. Couplers were used for slabs, column and wall connections. A typicall application on this project is to cast rebar couplers in the concrete with reinforcement, and then proceed with second phase bar connection at a later stage.

Unitec bolted couplers can have also been use on various parts of the project. Typically 联合技术公司 is used when overlap is planned but lapping length appear to be too short to perform a safe splice. In that case Unitec provides a convenient and full performance connection.

Dextra 向意大利-泰国承包商提供 拉杆 支持曼谷市中心领先的展览和会议中心 BITEC 扩建的屋顶结构。 2016年安装已顺利完成！

Dextra 总共交付了 298 个不同直径的组件，每个组件由多个杆组成，这些杆通过耦合器和螺丝扣连接，并通过叉端锚定到结构上，在某些情况下总组件长度超过 50 米（平均 33 米）。

对于如此大型的结构， 拉杆 与其他“张紧”解决方案相比，具有许多优势： 负载下的伸长率更低，所需的后张拉力更低，耐腐蚀性更好，减少了长期松弛并降低了维护和监控成本。

对于基础打桩中使用的预制笼，Dextra 建议使用两种不同的解决方案，以加快并简化现场安装：最佳性能、更高的生产率、更安全的操作。

加固>> Dextra 连接器解决方案旨在允许在最短的时间内安全地重新连接预制笼。

CSL（跨孔声波测井）>> 对于交叉声速测井管（用于基础测试），Sonitec 将允许快速重新连接管而无需焊接。