Widening the cable-stayed bridge over the Rande strait: an engine...

The AP-9 Atlantic Motorway crosses the Vigo estuary via the 400-metre-span, cable-stayed Rande Bridge. Widening the Rande Bridge forms part of the motorway expansion works that will achieve a 42% capacity increase and address rising traffic volumes. The works to widen the iconic Rande Bridge were the most spectacular of all the widening works between O Morrazo and Teis, due to their technical complexity. They were based on three fundamental design considerations: maximum use of the existing bridge structure, zero impact on traffic and road safety, and zero environmental impact on the estuary. The design solution comprises a new carriageway in each direction added to both external sides of the existing deck, thus widening the bridge capacity from two to three lanes in each direction. The new carriageways are suspended by two new families of stays anchored to the towers using a special steel box structure. Works were carried out...

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Wanda Metropolitano Stadium, Madrid. Spain

The new Wanda Metropolitano football stadium is the result of the refurbishment and expansion of the old La Peineta athletics stadium, which was completed in 1994. TYPSA developed the detailed design and provided construction supervision assistance for the structure and the foundations. The brief also included collaborating with the roof designer on the roof-to-structure interface. The stadium expansion had to address very specific functional and technical constraints such as UEFA and FIFA recommendations, evacuation safety requirements and optimum visibility. The many demands of football as a source of entertainment also had to be taken into account to provide spectators with a good view and proximity to the field, VIP boxes, shops, restaurants, a museum and so on. The stadium has a capacity for 68,000 spectators and the expansion increases the original 58,500 sq m GFA by 83,100 sq m, generating a total area of 141,600 sq m. Large reinforced-concrete radial...

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I-15 Express Lanes Project in Riverside, California, USA

Riverside County Transportation Commission (RCTC) and its partners in the project, the California Department of Transportation and the Federal Highway Administration, are carrying out substantial improvements on a stretch of Interstate Highway I-15, with a USD 471 million investment. A design and build contract was awarded to a consortium comprising the construction companies Skanska and Ames, and the engineering firm AZTEC-TYPSA, which is responsible for carrying out the engineering design. This highway is one of the USA’s major north-south routes. It crosses 6 states and is an essential truck/passenger route between the Canadian border, in the state of Montana, and southern California. The project consists of the construction of two median express lanes (HOV lanes) in both directions, along a corridor approximately 14.6 miles long. This new highway configuration involves widening a total of 11 existing bridges and viaducts, one of them 560 m long, and implementing environmental measures such...

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HS2 High Speed Line, United Kingdom

In 2010, the British government decided to modernise and expand the high speed rail network with a new line to the North in addition to the existing one between the Channel Tunnel and London. This new line is HS2 (High Speed Line 2) and will connect London and Birmingham (Phase 1) in 2026, later extending to Manchester and Leeds (Phase 2) in 2033 in a ‘Y’ network. The line is designed for a maximum speed of 400 km/h and will deliver peak-hour frequencies of up to 18 trains each way when it is completed. The total projected cost is £56 billion. Phase 1 will be 225 km long and will have four stations; two in London and two in Birmingham (one of them at the airport). Phase 2 will be 360 km long and will also have four stations; two in Manchester (one of them at the airport), another near...

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CORTI I wind farm, Bahía Blanca, Argentina.

Corti Wind Farm is located northeast of the city of Bahía Blanca, in the province of Buenos Aires. The farm comprises 29 wind turbines, each with a tower height of 87 m, and has a total installed power of 100 MW. Engineering and construction supervision services were delivered for the farm and for the balance of plant. The owner’s engineering, included: The full geotechnical campaign and civil engineering design of the wind farm including 20 km of internal roads and the hydrological study. Review and verification of all the detailed electrical infrastructure designs including medium voltage collection system, two substations, and high voltage line between them. Construction engineering services for the development of the wind farm and its combined transformer and transmission infrastructure. Corti is the first wind farm developed by Pampa Energy Group, the largest electricity company in Argentina. Through its subsidiaries, Pampa Energy Group generates, transmits and distributes...

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