Five Linden Comansa tower cranes build the “Nhat Tan Bridge” in Hanoi, Vietnam

Vietnam

The capital of Vietnam, Hanoi, will have by the end of 2014 a new road connection between the city centre and the Noi Bai International Airport. The pathway of this new 8-lane-road, four for each direction, crosses the Red River. To save its 1,200 meters of width, Vietnam’s Ministry of Transportation launched a project of a spectacular cable-stayed bridge and approach viaduct of 3.080 meters in total length.

A Joint Venture formed by Japanese firms IHI Infrastructure Systems and Sumitomo Mitsui Construction, is in charge of the construction of the "Nhat Tan Bridge", which is also known as the Vietnam-Japan Friendship Bridge.

Vietnam Bridge
The main part of the bridge, 1,500 metres in length, will feature five A-shaped concrete pylons, to which the clamping cables will be tied. The construction of these pylons, located every 300 metres along the bridge, has been done by five 21LC550 18t tower cranes, supplied to Sumitomo Mitsui Construction by Asia-Ted, a dealer of Linden Comansa in Singapore.

The initial assembly of the five cranes, as well as some jacking-up operations, was carried out by a team of Linden Comansa’s technicians, who exceptionally moved to Hanoi from Spain to attend this sophisticated operation. All pylons are practically of similar dimensions, so the cranes were erected with the same settings: jib length of 50 metres and 11 tower sections, to reach a freestanding height of 63.8 metres. In addition, each one of the cranes was erected on foundations over four steel piles driven to the ground, giving the crane a further height of between 5 and 11 metres, depending on the location of the pylon.

The erection of three of the five cranes was especially complicated, as the pylons were completely surrounded by the water of the Red River. The lifting of the sections had to be done by crawler cranes located in barges in the river, which made the maneuvers more difficult the days in which waters flow down at high speed. In addition, the need to transport material and sections on barge demanded a large planning and slowed down the erections tasks.

As the pylons were being built, each one of the cranes had a first tie at a height of 31.1 meters (after the sixth tower section), and using a hydraulic cage, each 21LC550 was climbed to a height under hook of 85.8 meters (15 tower sections). Months later, they had to be tied for a second time at a height of 60.6 metres (after the 11th section) and another climbing allowed the cranes to reach a final height of 107.8 metres (19 tower sections), which together with the height of the foundations, allowed the cranes to reach high enough to finish building the pylons, between 109 and 111 meters high. As all of the cranes had the same D33 mast section, which is 2.5-metre wide, only two hydraulic cages were necessary to perform all the jacking-ups, which meant a significant economic saving.

The five tower cranes have worked at the jobsite since 2009, raising all the necessary materials for the construction of the pylons, such as formwork, prefabricated rebar cages, concrete, etc. The 21LC550 have also helped to unroll and place the cables of the bridge, as well as to raise the cable anchor boxes to the top of the pylons. These 29 red pieces of anchor boxes per pylon, which have been directly embedded into the concrete, weight a maximum of 18 tons per piece, forcing the cranes to employ 100% of its maximum load capacity.

The main steel girders of the bridge deck of maximum 7 tons in weight are lifted at 50 metres radius by the 21LC550 from the barge or ground to the bridge deck area.

The chosen hoisting mechanism for each of the five cranes at the jobsite was the optional 65 kW, which allows speeds of up to 220 meters per minute, very suitable for this type of project. In addition, the easy manoeuvrability of the crane and its great precision to locate the load in place, have facilitated a fast and agile construction.

During the project execution, the tower cranes were equipped with Obstruction Lights for air navigation and lightning protections to provide safe circumstances for the work force.

The construction of the five of the pylons and the connection of steel bridge decks between the three pylons has finished recently. The work of jacking-down and dismantling of the cranes has already started. These tasks, especially when dismantling the ties, are critical because the cranes are very close to the expensive cables that hold the bridge, and any small impact could damage them badly, forcing the management to either repair or replace the complete cable.

Hitoshi Yamaji

Project Manager Mr. Hitoshi Yamaji, from Sumitomo Mitsui Construction Co., Ltd., showed his satisfaction with the performance of the cranes: "The five 21LC550 tower crane worked well during our pylon construction without any trouble. In addition, the maintenance and technical support by their well trained technicians were satisfactory. We got the best decision by choosing Linden Comansa cranes for our construction works; otherwise, I think it would have been difficult for us to complete our project on time".

The "Nhat Tan Bridge" is expected to open in October 2014, after 60 months of construction, just in time for the 60th Year Anniversary of Hanoi Capital Liberation Day.
Click Here
To Know More or to Contact the Manufacturer
Please let us know your name.
Invalid Input
Please let us know your Designation.
Please let us know your Contact Number.
Please let us know your email address.
Please brief your query.
Our other Value-Added Services:

To receive updates through e-mail on Products, New Technologies & Equipment, please select the Product Category(s) you are interested in and click 'Submit'. This will help you save time plus you will get the best price quotations from many manufacturers, which you can then evaluate and negotiate.

Invalid Input
Invalid Input
Invalid Input
Maya Xiao, Senior Analyst, Interact Analysis, gives insights on how the Forklift Market is responding to the current geopolitical and economic climate. Forklift shipment growth had plateaued to some extent

Read more ...

The largest addition to the ‘Tough Guys’ series: Liebherr is expanding its EC-B series upwards with the 520 EC-B 20 Fibre. The new flat-top crane with fibre rope and a lifting capacity of up to 20 tons was introduced at bauma Munich

Read more ...

At bauma Munich 2022, Manitowoc showcased a dozen cranes from Grove and Potain, and highlighted its expanded range of support solutions that cover monitoring, parts, service, rental, remanufacturing, finance, and

Read more ...

Spanish tower crane manufacturer Comansa presented its innovative model at Bauma Munich 2022 and its expanded range of luffing jib cranes with the launch of the LCH300, its first hydraulic model, with a maximum load capacity of 16

Read more ...

R220-10S, R90-5RE and other tower cranes tailored by Zoomlion for the European market made a debut and led a new trend at bauma Munich. The R220-10S is a flat-head tower crane based on the future-oriented digital, green, and

Read more ...

The Tadano Group has expanded its product line, enhanced the Tadano Customer Experience, contributed to community development, and advanced its business activities to protect the global environment. Using the OneTadano concept, the

Read more ...

The SBL600 gantry is the latest addition to the SBL-Super Boom Lift hydraulic gantry range. With maximum lifting height of 10.6m, the three-stage telescopic hydraulic cylinder features a foldable boom allowing transportation on standard

Read more ...

Displayed at bauma 2022, was the first battery-powered telescopic crawler crane – the 653 E Electro Battery. The new 50-ton battery-powered crane combines the benefits of battery technology with the proven advantages of the

Read more ...

PALFINGER, a leading producer and provider of innovative crane and lifting solutions, demonstrated its comprehensive digitalization competence at bauma Munich. The focus was on three key core topics: Smart Solutions, Smart Services

Read more ...

Fassi’s three solid and operational electric solutions presented at bauma Munich were the SHT and Plug-In systems, and the 'full-electric' truck-crane combination produced in collaboration with Volvo Trucks. Also, Fassi

Read more ...

The importance of understanding work equipment selected for the task in hand. Training providers can only support workers if they understand the risks involved. It’s been more than 30 years of working in the world of safety and I have seen a massive

Read more ...

Maya Xiao, Senior Analyst, Interact Analysis, gives insights on how and why the current international problems have strained the market. As with almost every industry, supply chain constraints due to Covid-19, coupled with the current geopolitical climate, have created a perfect storm for forklift manufacturers. Our new research has downgraded

Read more ...

Spanish tower crane manufacturer Comansa has expanded its range of luffing jib cranes with the launch of the LCH300, its first hydraulic model, with a maximum load capacity of 16 tons and reach of 60 metres. The tower crane manufacturer will officially showcase

Read more ...

At the Franna India Open Day, the company gave a tour to visitors of its manufacturing processes and products and shared its business plans for the Indian market. On the sidelines of the event, NBM&CW discussed with Kieran Hegarty

Read more ...

Liebherr will continue to position its cranes as high premium, value-oriented products in the rapidly evolving Indian mobile and crawler crane market, informs Subhajit Chandra, Head-Marketing, Liebherr Cranes India, while discussing the company’s marketing

Read more ...

Entrapment is a leading cause of injury and death when using MEWPs; operating equipment from the ground to position workers at height significantly increases the risks involved. Entrapment is where MEWP occupants become trapped between the controls or guardrails

Read more ...

Prime Minister Narendra Modi stepped into a specially designed elevator that took him straight to the 6.5m high National Emblem atop the new Parliament building. When he unveiled the National Emblem, India celebrated the superb sculpture - a symbol of New India

Read more ...

Enerpac has enhanced the ETR-Series Trolley System with higher capacity trolleys and swivel plates to accommodate header beams and other lifting systems. With a 50 metric ton (500kN) and now 100 metric ton (1000kN) capacity per trolley, the electrically

Read more ...

Plaksa India is providing electromechanical Screw Jacks, Electrical actuators, and Linear Chains for efficient operation of Lifting Systems used in industrial automation, defence, steel plants, renewable energy & logistic, etc. The products are manufactured

Read more ...

To remove avalanche debris, including tree trunks and rocks, the Neureiter team had to reach the Marxtenalm at 1,200 meters above sea-level in the Austrian Pinzgau. The operation involved a 3-axle »MPA« semi lowloader carrying a Liebherr R918 crawler excavator

Read more ...