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MultiRio Container Terminal

MultiRio Container Terminal

The MultiRio Container Terminal is a large container terminal located in the Rio de Janeiro Port. The terminal specializes in the import/export of finished goods.

MultiRio plans to increase its shipping capacity by at least 50% and launch in 2012 an expansion project aiming at adding extra quay length to its infrastructure in order to receive additional port containers.

To support the pier expansion of MultiRio, Dextra has been working with contractor Andrade Gutierrez for the engineering and supply of Marine Tie Rods.

Dextra supplied in 2014, 100 tons of steel rods coming in medium diameters M56 and M59. The rods were anchored to the wall by the use of swivel plates and nuts, which conveniently allow 5° multidirectional adjustment.

Plates are positioned onto the Waling beams, also supplied by Dextra. Waling beams are installed onto the sheet piles. Their design is directly impacted by the Tie Rods solution chosen as for example spacing of the beams will be impacted by the diameter of the bar and angle of the rod.

tie rods waling

Between the wall, Hinge couplers were installed in line to allow for additional vertical tolerance as sometimes required to counter the ground settlement efforts sometimes caused over times with heavy cranes operating and piles of stored containers.

Paradip International Cargo Terminal (PICT)

Paradip International Cargo Terminal (PICT)

Paradip International Cargo Terminal (PICT) is a multipurpose berth to handle clean cargo at Paradip Port, located on the eastern coast of India, between Kolkata and Visakhapatnam.

The depth of the berth is 17.1 meters with a length of 450 meters, which will facilitate handling of Cape-sized vessels up to 125,000 DWT.

The multi-purpose berth will be utilized for handling containerized traffic, including non-hazardous and dust-free cargoes such as iron and steel products, finished fertilizer, food grains and sugar.

Dextra supplied approximately 370 tons of Marine Tie Bar systems, sizes M105 and M76, grade 500, along with accessories: couplers, turnbuckles, swivel plates, swivel nuts, swivel plates with angle seating.

The tie bar systems were used to connect with concrete diaphragm walls at both ends, in order to retain the berth structure.

Dextra Marine Tie Bars Application

With the new berth becoming operational in 2018, the port is having a total of 18 berths: 13 cargo berths, 2 oil tanker berths and 3 crude oil tankers and single-point mooring for handling of crude oil tankers.

Sources of images: J M BAXI GROUP YouTube Channel: https://www.youtube.com/watch?v=k9-VV3nlT58

Mugharraq Port Marine Development

Mugharraq Port Marine Development

Mugharraq Port is a strategic harbour located 240 kilometers from Abu Dhabi, United Arab Emirates.

The marine development project includes extending the quay wall up to 480 meters with additional berths, deepening the facility to 8 meters, and developing six additional Ro-Ro ramps and extra berths to enable heavy lift operations.

Dextra provided 407 tons of marine tie bars in size M103, grade 700 to connect sea walls to anchor walls.

The project aims to enhance Mugharraq Port’s infrastructure and service capabilities so that it can better support offshore and mega projects in the oil and gas industry.

Source of images: https://wadeadams.com/projects/mugharraq-port-construction/

Altamira Port – Multiple Use Terminal Expansion

Altamira Port – Multiple Use Terminal Expansion

Altamira Port is located on the shores of the Gulf of Mexico in Altamira Tamaulipas and connects with 125 ports across the world. The port services an important area of economic and industrial activity in the country. It handles liquid and dry bulk, petrochemicals, LNG, container, and general cargo.

The expansion of the multiple use terminal of the Altamira Port is part of the plan to make Mexico a global logistics platform. Dextra marine tie bars were chosen to anchor sea walls during the expansion. 174 tons of tie bars in grade 700 were supplied.

Moreover, Sonitec, a sonic tube solution, was used for the CSL (crosshole sonic logging) testing of foundation piles of the quay. It facilitates the structural integrity and homogeneity of concrete within the piles by measuring the speed of ultrasonic pulses.

Source of images: Altamira Port Handbook 2008-2009, produced by Land & Marine Publications Ltd on behalf of Administración Portuaria Integral de Altamira, SA de CV (API Altamira)

Sète Port

Sète Port

The Port of Sète is a large sea port opened to the Meditteranean Sea. It is the largest fishing port in the South of France. It also serves many ferry connections towards Tangiers and other destinations in North Africa.

Sète Port and its main sponsor, Region Languedoc Rousillon, wish to increase the container capacity of the port by adding a new quay (Quay H, 15 meters deep) to their existing infrastructure. The new quay will increase both handling and storage capacity of containers.

To support contractor Soletanche-Bachy in the construction of this new structure, Dextra engineered and delivered 74 Marine Tie Rods assemblies. The tie rods systems delivered are the largest currently available in our range: M160.

Large diameter assemblies allow to reduce the number of sets which need to be installed by increasing the spacing between each rod.

The long tie rods assemblies were anchored into the D-Wall by the installation of ball cages, which allow a rotation angle of 10° in all directions.

The Ball Cages were installed into reinforcement of the D-Wall and cast in concrete. After excavation, ball cages were open to allow the reconnection of the threaded ends of the rods.

MahaNakhon Tower

MahaNakhon Tower

MahaNakhon Tower is a 77-storey skyscraper in Bangkok. With a height of 314 meters, it became in 2016 Thailand’s tallest building. MahaNakhon is located in Silom, the busiest business district of Bangkok, right above the BTS Skytrain station Chong Nonsi. The project is owned by developer PACE and has been built by Bouygues-Thai.

Foundations

Foundations are always a challenge in Bangkok. The city being built on sands and humid soils, foundations must be deep and most projects feature thick D-Walls to prevent water from leaking in.

For the D-Walls of MahaNakhon, Dextra supplied rebar couplers used in the D-Walls. The couplers were mounted on hook bars, installed horizontally and cast in concrete. This typical application allow to reconnect bars to the D-Wall at at a later stage when starting the slab reinforcement.

Finally, Headed Bars were also installed in the thick foundation matt. Headed bars are an advantageous substitute to hooks in congested areas, they provide high performance anchorage and are easier to install.

Superstructure

The tower is built around a corewall, erected with slip formwork, surrounded by 12 megacolumn. To connect the columns with the corewall, Dextra supplied Bouygues-Thai with its renowned Bartec solution. Bartec couplers, installed flush with the formwork and cast in concrete, allow second phrase reconnection of bars to bridge the column and the corewall.

In the mega columns, rebar couplers were also used to perform bar-to-bar vertical connecitions.

Skybar

Finally, Dextra provided Tension Bar Systems in the rooftop skybar. Tension Bars can be easily installed with their fork ends and provide an aesthetic anchorage system.

For more information about Dextra solutions for MahaNakhon, a case study with photos is also available.

mahanakhon_tower_case_study

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Grand Paris Express – Line 14

Grand Paris Express – Line 14

The Grand Paris Express is a major urban transport project taking place all around the French Capital. The project will add 4 new lines (lines 15, 16, 17 and 18) and extend two existing lines (11 and 14).

Dextra has been involved on the packages of several stations through its local distributor partners. On the line 14 in particular, Dextra supplied Fortec rebar couplers in stations of Orsay and Pont Cardinet.

For the Bagneux Station in the North of Paris, located at the crossing of metro line 4 and future line 15, Dextra supplied its ASTEC Active Anchors.

ASTEC Active Anchors are the preferred solution for subway stations works as Tunnel Boring Machines and earth-moving equipment can simply cut the anchors’ FRP tendons at any stage, eliminating any need of unreliable and costly removal of anchors. The solution was approved for this project by consulting firm SYSTRA.

After numerous successful projects in the Middle East, this was the first time ASTEC Active Anchors (a recent Dextra innovation) were installed in Europe.

New Bay Bridge of San Francisco

New Bay Bridge of San Francisco

The New Bay Bridge is a large civil engineering project taking place between the years 2002 and 2013. The aim of the project was to replace two segments of the Bay Bridge vulnerable to eathquakes by a new structure designed to withstand seismic efforts.

For that project, Dextra was involved on two segments of the renovation project: the approach to Bay Bridge on the San Francisco side, and the Eastern segment from the Island of Yerba Buena to Oakland.

Dextra supplied for this project its Bartec Headed Bar systems. Headed Bars are an anchor disc mounted on the end of a rebar previously prepared for the Bartec system.

The use of Headed Bars provides an smart and compact alternative to long rebar hooks in areas where the reinforcement is particularly congested. Unlike hook bars, Headed Bars are particularly easy to install, as end anchors can just be screwed onto the reinforcement at a later stage, after the reinforcement is installed.

For the approach to the Bay Bridgee in San Francisco and the Yerba Buena Eastern Segment, Bartec Headed Bars were used for the shear reinforcing of the column foundations, as well as in the bridge hinges.

The Bartec Headed Bars solution is approved by CALTRANS, the California Department of Transportation, for all imperial bar size #3 to #18. and is also certified by the ICC-ES.

Flamanville EPR

Flamanville EPR

Flamanville is the first reactor built after the new generation EPR design (European Pressurized Reactor), after a 100% Chinese design. It will have a capacity of 1.3GWe when entering service in 2019.

Dextra has been present on site since the beginning of the construction works in 2008 and until 2015.

For this challenging project, Dextra has been supplying its Griptec rebar splicing solution through its local fabricator partners. The rebar preparation was supported by an additional machine placed at site.

Griptec is the preferred rebar splicing solution of the nuclear industry thanks to its unique performance level and an automatic testing process which systematically tests all the connections produced as part of its standard cycle: a guarantee that 100% of the connections perform above project requirement.

More than 800,000 Griptec connections have been used on the project, including 400,000 position assemblies, allowing to connect large diameter rebar without rotating them. The Griptec connections have been installed on reactor building and APC shell, as well as auxiliary buildings.

In particular, Griptec have been used for the connections of large prefabricated panels.

 

Four sided panels with Griptec female sleeves and bridging studs

Four sided panels with Griptec female sleeves and bridging studs

 

Thanks to its Bridging Assemblies, square panels could be reconnected on four sides while coping for possible misalignment that occur when lifting the cage.

Hanoi Nhật Tân Bridge

Hanoi Nhật Tân Bridge (Vietnam – Japan Friendship Bridge)

The Nhat Than Bridge is an impressive cable-stayed bridge spanning over the Red River and located North of Hanoi. The total length of the project is 8.9 km, including the actual3.75 km bridge.

The bridge is the new gateway to Hanoi as it greatly reduces the transport time to Hanoi Noi Ban Airport, the second busiest airport of Vietnam in passengers.

The bridge was inaugurated by the Ministry of Transport of Vietnam and opened to the public on the 4th of January 2015. The bridge has since theen been renamed “Vietnam – Japan Friendship Bridge).

Dextra has been involved on the Nhat Tan bridge since the early stage of the project by supplying the popular Bartec rebar couplers, the main rebar splicing solution in Vietnam. Bartec connections were used in various part of the project: approaches, foundation piles, pile caps and approaches.

Bartec couplers make a convenient rebar splicing solution as the same standard coupler can be used for standard connection (rotating rebar into coupler) and position connection (rotating only coupler, when it is impossible to rotate rebar). Dextra supplied more than 130,000 connections in total for this project for the lifting of heavy elements.

For the temporary operations of lifting and fixing of the girder precast segments, Dextra also supplied 36 tons of high-tensile PT bars.

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