डेक्सट्रा ग्रुप | विश्वसनीय कनेक्शन

बैंकॉक एरेना

बैंकॉक एरेना

The Bangkok Arena is a multisport indoor arena located in the Nong Chok district, east of Bangkok. Originally commissioned to host futsal tournaments, an indoor version of football, the arena now also hosts volleyball and basketball events, as well as concerts. It has a seating capacity of up to 12,000 people.

For this project, Dextra engineered and supplied the तनाव छड़ें suspending the roof of the building in 2012.

The long architectural bar systems are anchored to concrete pylons and act as suspenders to support the building’s roofing structure.

For this project, तनाव छड़ें were supplied in Grade 700, the highest in our range. The highest grade allows for a better performance-to-steel ratio, enabling the use of smaller diameters. This results in a slimmer structure and overall improved aesthetics. Additionally, smaller-diameter bars and lighter elements facilitate easier handling and installation on-site.

Each bar segment is spliced to the next using either couplers (for fixed lengths) or turnbuckles (for length adjustment and tensioning).

Connection to the concrete structure is achieved through fork ends mounted onto steel gusset plates.

In total, more than 129 tons of तनाव छड़ें anchor the roof structure, with tendons exceeding 30 meters in length.

छागला बांध

छागला बांध

Chaglla Dam is a hydroelectric dam built on the Huallaga River in the Huánuco region of Peru. The dam stands 203 meters high and has a maximum installed capacity of 456 MW.

For this major dam project, Dextra consistently supplied its Rolltec rebar coupler solution to Brazilian contractor Odebrecht from 2012 to 2015.

Rolltec is the most popular rebar splicing solution in Latin America, offering a competitive alternative to lap splices.

Rebar preparation is supported by a unique lightweight machine, which can be operated by a single person. The Rolltec machine is relatively easy to transport and convenient to install, even in remote locations such as dam construction sites.

Beyond just couplers and equipment, Dextra also took charge of machine commissioning and operator training, ensuring the contractor’s team made the most of their rebar coupler solution.

दोहा मेट्रो मशीरेब स्टेशन

दोहा मेट्रो मशीरेब स्टेशन

मशीरेब स्टेशन दोहा मेट्रो का प्रमुख इंटरचेंज स्टेशन है। डाउनटाउन दोहा में स्थित, यह सभी तीन लाइनों (लाल, हरा और सोना) को जोड़ता है और 2022 फीफा विश्व कप 2022 स्टेडियमों के लिए एक प्रवेश द्वार प्रदान करेगा।

मशीरेब स्टेशन आकार के हिसाब से दुनिया के सबसे बड़े सबवे स्टेशनों में से एक बन जाएगा।

कोमल-आँखें टीबीएम के लिए

इस प्रमुख परियोजना के लिए, डेक्सट्रा ने 2013 और 2015 के बीच 8 बड़े इंजीनियरिंग और आपूर्ति की एएसटीईसी जीएफआरपी सॉफ्ट-आइज़, प्रत्येक का व्यास 8 मीटर है। सॉफ्ट आईज जीएफआरपी सरिया के पिंजरे हैं, जिन्हें स्टील सेगमेंट के बीच डी-वॉल में रखा जाता है। जीएफआरपी सॉफ्ट-आईज टनल बोरिंग मशीन (टीबीएम) को कम से कम समय में जाने की अनुमति देते हैं क्योंकि बार को टनल मशीन द्वारा आसानी से कुचला जा सकता है।

टाई-बैक एंकर

विशाल डी-दीवारों को स्थिर रखने और उत्खनन कार्यों के दौरान मिट्टी के विस्थापन को रोकने के लिए, डेक्सट्रा ने अपनी आपूर्ति भी की एएसटीईसी सक्रिय एंकर (AAA)। उन अभिनव पोस्ट-टेंशन वाले GFRP-आधारित एंकरों में टनल बोरिंग मशीनों या मानक उत्खनन उपकरणों द्वारा काटे जाने के लाभ हैं। क्योंकि इसे आसानी से काटा जा सकता है, इसलिए इसे अस्थायी अनुप्रयोगों के लिए उपयोग किए जाने पर भी जमीन से हटाने की आवश्यकता नहीं होती है।

मशीरेब स्टेशनों के मामले में, डी-वॉल को एंकर करने के लिए सॉफ्ट-आई के केंद्र में मल्टी-टेंडन्स एंकर (इस प्रोजेक्ट पर प्रति एंकर 10) भी स्थापित किए गए हैं। सुरंग तोड़ने के दौरान उन एंकरों को भी काट दिया गया था (नीचे दिए गए वीडियो में दिखाई दे रहा है)। स्टेशन पर कुल 150 लंगर लगाए गए।

हीथ्रो हवाई अड्डा टर्मिनल 5

हीथ्रो हवाई अड्डा टर्मिनल 5

Heathrow Airport, located approximately 25 km west of central London, is the busiest international airport in the United Kingdom.

Dextra was involved in the construction of Terminal 5 and its associated structures.

For Heathrow Airport, Dextra provided its most advanced rebar स्प्लाइसिंग समाधान: Griptec, which is distributed in the United Kingdom by local expert fabricators.

Due to its high performance, inherent reliability, systematic proof loading of every connection in factory conditions, and comprehensive certification, Griptec is specified by major consultants worldwide. In the United Kingdom, Griptec holds all three CARES splicing product certificates: TA1-A, TA1-B, and TA1-C.

For our distributors servicing rebar preparation, the Griptec solution is both convenient and productive. It is supported by a smart machine operated by a single operator, offers highly efficient cycle times (approximately 45 seconds per rebar prepared), and includes a test that systematically proof loads each and every bar/sleeve connection.

For contractors, Griptec provides a simple, effective, and reliable way to connect rebar in columns, डायाफ्राम की दीवारें, and slabs. One application at Heathrow was for the roof of the new underground station. Griptec connections were also used to create temporary openings that allowed workers and equipment to move freely through the rebar structure and could easily be “closed” using single lengths of rebar with Griptec connections at both ends.

Thanks to its parallel-thread technology, Griptec does not require any specific torque wrenching and can be verified through simple visual inspection, offering a significant advantage in simplifying the project schedule and maximizing operational productivity.

पेट्रोनास रैपिड

Petronas RAPID: A Strategic Petrochemical Complex in Malaysia

Petronas RAPID (Refinery And Petrochemical Integrated Development) is a large-scale petrochemical complex located in the southernmost part of Johor, Malaysia, across the sea from Singapore.

Commissioned in 2016, the RAPID development aims to increase local production capacity by 300,000 barrels per day, making it a strategic asset for the Malaysian peninsula.

For this project, Dextra supplied its बार्टेक system for the construction of precast pipe racks across the site. A total of 30,000 बार्टेक हेडेड बार्स were used to create horizontal anchoring points for pipe rack beams.

To support the project, a बार्टेक machine was installed directly on-site and commissioned by the Dextra team, ensuring efficient bar preparation and seamless integration into the construction process.

रास अबू अबाउद स्टेडियम, 2022 फीफा विश्व कप स्थल

रास अबू अबाउद स्टेडियम, 2022 फीफा विश्व कप स्थल

Ras Abu Aboud Stadium is a football stadium under construction in Doha, Qatar, with a capacity of 40,000 spectators.

This project has been specifically designed to host the 2022 FIFA World Cup. The stadium features a modular design, incorporating recycled shipping containers, removable seats, and other modular building blocks. After the tournament, it will be completely dismantled and repurposed.

Dextra supplied more than 600 sets of carbon steel तनाव छड़ for the cross-bracing of the roofing and bowl structures, as well as for staircases, catwalks, and ramps. The तनाव छड़ range in bar thread size from M20 (diameter 19 mm) to M72 (diameter 70 mm).

Upon its expected completion in 2020, Ras Abu Aboud Stadium will set a new standard in sustainable construction design.

मिस्र की रिकॉर्ड तोड़ अपशिष्ट जल उपचार सुविधा

मिस्र की रिकॉर्ड तोड़ अपशिष्ट जल उपचार सुविधा

The Bahr El Baqar wastewater treatment plant is located in the northern governorate of Port Said and has a daily output capacity of 5.6 million cubic meters. It is a joint venture between the Arab Contractors Company और Orascom Construction.

The plant is the world’s largest of its kind, holding three Guinness World Records:

  • The largest water treatment facility, processing 64.8 cubic meters per second
  • The largest sludge treatment plant
  • The largest single-operator ozone generating plant

Dextra is proud to contribute to this project by supplying Rolltec rebar couplers for the reinforcement of the plant’s concrete structures.

Rolltec is a CARES-approved, rolled parallel-threaded mechanical splicing system designed for connecting concrete reinforcing bars from Ø12 to 50 mm (ASTM #4 to #18). It offers fast and easy preparation and installation on-site.

छवियों का स्रोत: https://www.arabcont.com/english/project-624

दुबई हवाई अड्डा

दुबई हवाई अड्डा

Dubai Airport is the main airport in the United Arab Emirates. The famous airport, located just a few kilometers north of Dubai city, is home to the renowned Emirates airline. Dubai International Airport is the world’s #1 airport in terms of international passenger traffic.

Dextra Middle East, also based in Dubai, has been involved in numerous projects related to the construction of Dubai Airport, particularly from 2003 to 2005, during the development of Terminal 3 and the associated concourses.

For the Dubai International Project, Dextra supplied its popular Bartec coupler solution, the leading rebar coupler solution in the UAE. A total of 1.5 million couplers were used at Dubai International Airport.

सुपरस्ट्रक्चर

Bartec couplers provided a technical solution for reconnecting second-phase reinforcement between columns and beams, as well as between walls and beams.

Rebar couplers were also used to create temporary openings in the reinforcement, allowing the passage of personnel and equipment.

नींव

Bartec couplers were utilized for the foundation piles. In this application, the couplers became part of a highly integrated and automated cage manufacturing process, enabling the quick connection of large-diameter rebar and maximizing cage production output.

To complement the Bartec rebar coupler solution, Dextra Sonitec tubes were used to ensure the swift installation and reconnection of the sonic tubes along the entire length of the cages. Sonitec tubes are particularly easy to install due to their Push-Fit rubber mouth and easy to set up in the cage thanks to their welded heads. Over the years, more than 1,800,000 meters of Sonitec tubes have been installed at Dubai International Airport!

बैंकॉक बीटीएस

बैंकॉक बीटीएस

बैंकॉक मास ट्रांजिट सिस्टम (BTS) थाईलैंड की राजधानी बैंकॉक में स्थित एक बड़ी शहरी स्काईट्रेन प्रणाली है। इस प्रणाली का उद्घाटन 1999 में हुआ था।

2017 तक, इस प्रणाली में 24 एलिवेटेड स्टेशन और 37 किमी एलिवेटेड रेल शामिल हैं, जो सियाम सेंट्रल स्टेशन पर एक दूसरे को पार करने वाली दो मुख्य लाइनों में व्यवस्थित हैं।

बीटीएस प्रणाली अपनी दो मुख्य लाइनों का विस्तार कर रही है, जिसके लाइन खंडों और स्टेशनों के 2019 और 2020 में परिचालन में आने की उम्मीद है।

नींव

पिछले कुछ वर्षों में विभिन्न पैकेजों के लिए, डेक्सट्रा ने आपूर्ति की है सोनीटेक ट्यूब, जिनका उपयोग स्टेशनों और पटरियों के नीचे कंक्रीट पाइल नींव का परीक्षण करने के लिए किया जाता है।

कुल मिलाकर, डेक्सट्रा ने लगभग 40,000 रैखिक मीटर सोनीटेक ट्यूब की आपूर्ति की, जो वास्तव में बीटीएस प्रणाली की लंबाई के बराबर दूरी है।

तोरणों

पाइलॉन वर्टिकल बार कनेक्शन के लिए, डेक्सट्रा ने इसकी पेशकश की बार्टेक समाधान।

बार्टेक ठेकेदारों को एक सरल रीबार कपलर का उपयोग करके पूर्वनिर्मित रीबार पिंजरों को सुविधाजनक ढंग से विभाजित करने की अनुमति देता है, जिससे ओवरलैप विभाजन की तुलना में स्टील की बचत होती है और साइट संचालन में तेजी आती है।

थाईलैंड में, थ्रेडिंग ऑपरेशन को डेक्सट्रा की फैक्ट्री द्वारा समर्थित किया जाता है, जो बैंकॉक के उत्तर-पूर्व में सुविधाजनक रूप से स्थित है। ठेकेदारों को पहले से तैयार सरिया प्राप्त होता है और उनके सरिया कपलर के साथ लगाया जाता है।

सिलिंगस जलाशय

Cylingas Reservoirs: Industrial Gas Storage in the UAE

The Cylingas gas tanks are part of the industrial complex of Cylingas, located in Al Quoz, United Arab Emirates.

For the installation of new gas tanks, Dextra supplied its tension rods systems, which were used for the cross-bracing of the tank footing structure. Carbon steel rods in Grade 355, with a diameter of 120 mm (thread M123), were selected for this application. The rods were delivered with forks, lock covers, and turnbuckles. A total of 48 sets were installed for this project.

The assemblies were fixed onto the pylons using gusset plates connected to the forks. Turnbuckles were installed in the lower part of the assembly to facilitate installation, allowing for length adjustment and stress control by bringing two bar segments closer together.

For more information on Tension Bars in industrial settings, please download our dedicated introduction brochure.

मध्य पूर्व में उच्च प्रदर्शन बार सिस्टम की उपलब्धता के बारे में अधिक जानकारी के लिए कृपया हमसे संपर्क करें दुबई कार्यालय.