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
Terex continues to strengthen its foothold in India’s Construction Equipment Market by bringing in new technologies, expanding its product portfolio, and entering new construction territories. Having marked its entry

Read more ...

Tower crane manufacturers are expanding their range with newer models and making them more cost-effective as cost of production rises and competition heats up. NBM&CW investigates.

Read more ...

A new digital platform has been launched to disrupt and simplify the process of crane rental procurement. MYCRANE – a global business-to-business (B2B) platform allows users to submit details of their lifting requirements

Read more ...

Demand for safe, versatile, and reliable material handling products like Telehandlers is growing across a wide spectrum of applications in India, says Deepak Shetty, CEO & Managing Director, JCB India.

Read more ...

The wolf is known for its adaptability and strength, which also distinguish the red WOLFFs on construction sites around the world. Latest proof is provided by two WOLFF 1250 B luffing jib cranes on the

Read more ...

Sinoboom Electric Articulating Boom Lifts Launched in Southeast Asia To mark the arrival of Sinoboom AB14EJ and AB16EJ articulating boom lifts into the Schmetterling rental fleet, a product launch event was held to showcase the series of Sinoboom machines at their

Read more ...

Enerpac has introduced new split-flow pump upgrade kits that provide the ability to network multiple pumps and coordinated lift points for higher accuracy synchronisation. The new split-flow kits allow

Read more ...

Alpha continues its leadership in mobile tower crane segment with its SG 24X30 self erecting mobile tower crane in technical collaboration with SOIMA of Portugal which delivers solutions for challenges on

Read more ...

With construction of major infra projects seeing a revival, expectations are rife that the market for mobile cranes will soon witness higher sales, including of the new, more advanced products

Read more ...

Liebherr Mining is gearing up to showcase its new mining solutions portfolio at the world’s largest mining trade show, MINExpo International 2021 in Las Vegas, USA, from September 13–15, 2021. Covering a total area

Read more ...

Tower crane anti-collision and zone protection systems are now an essential safety attachment to prevent collisions with other tower cranes and nearby structures. P.V. Ramdev, MD - Everest Engineering

Read more ...

Spartan has many awards and certifications to boast of; according to Vikram Mehta, MD, Spartan Engineering Industries, the reasons lie in the company’s focus on design and development of components

Read more ...

Top Material Handling Equipment suppliers, namely KION India, Jungheinrich India, Hyundai, Godrej, ACE, and ElectroMech-Yale are providing end-to-end Intra-Logistics Solutions and gearing up to meet the anticipated

Read more ...

We are very optimistic and bullish about the market in 2021 and expect the market volume for MHEs to have a very robust growth over that of 2020.

Read more ...

With modernisation of the logistic sector, expansion of warehousing and logistic hubs across the country, and growing e-commerce, we expect at least 20% growth y-o-y in this segment

Read more ...

We are expecting a double digit y-o-y growth of 18-20% this year, when the market is expected to cross 13000 units, led by demand from FMCG Warehousing, Rentals, and e-Commerce

Read more ...

There is a perceptible shift towards products with cleaner, greener and smarter technology in the warehouse equipment segment. Data for FY21 shows that electric powered equipment occupies 56% of the MH market

Read more ...

“With focus on environment and sustainability, electric material handling equipment is being more widely accepted. Battery-operated electric forklifts and pallet trucks will become part of ‘smart’ warehouses”

Read more ...

ElectroMech is getting involved with material handling equipment beyond industrial overhead cranes. We have added Yale forklifts from Hyster Yale Group (USA) to our portfolio, and are offering aerial work platforms

Read more ...

25 Liebherr tower cranes are involved in the construction of the Überseequartier, a new district in Hamburg. This is part of the well-known HafenCity urban development project and comprises 14 buildings of various

Read more ...

×
Sign-up for Free Subscription
'India Construction Week'
Weekly e-Newsletter on Construction Industry
Get the latest news, product launches, projects announced / awarded, government policies, investments, and expert views.