PROJECT DATA

Efficient construction of exceptional bridge piers in the North of England

Project: Bridge Building, Noth of England

Contractors (and Architects):  Joint Venture RMG AMEC, Alfred McAlpine, Dragados, Kellog Brown and Root

MEVA Systems: Mammut wall formwork, KLK climbing system, Space shoring tower

Formwork Engineering: MEVA Formwork Systems, Colnbrook, Great Britain

 
 
1
2
3
4
 

Project

Versatile system

Efficient construction of exceptional bridge piers in the North of England

The A1 is one of the arterial roads between Scotland and the South of England, which is being up-graded to Motorway status. With a number of other motorways it connects all important adjacent urban and economic areas. In particular, the junctions have reached their maximum capacity due to the constant increase of individual and goods traffic. This is why in the Leeds region, several bypass roads are under construction which are part of the new route planning for the A1M and its access roads. One of these bypasses is the “Holmfield Interchange” with exceptionally designed bridge piers. RMG, the joint venture company building the Interchange, chose the expert knowledge and the creativity of the MEVA engineers to fulfil this job.

At the beginning of 2003, the invitation was issued to tender for the expansion of the A1 between Darrington and Dishforth into a motorway, which would include a junction with various fly-overs on different levels, where the M62 was to join the A1M. This was to be a DBFO-project for which a joint building venture assumes the Design, Building, Financing and Operation of the project. The contract was awarded to the joint venture RMG (AMEC, McAlpine, Dragados, Kellog Brown and Root). They had to build the bridge piers with high architectural requirements made on form and surface.
A total of 22 piers with varying heights between 6 m and 17 m had to be formed while heavy traffic kept running on the M62. The piers have a series of vertical features, which was achieved by screwing shaped timbers onto the forming face, and their Y-shape tapers with a radius of 7 m. Also, the 1.25 m wide walls of the piers are wineglass-shaped, to blend in with local landmarks. The ideal solution would be achieved with a formwork system which is steplessly adjustable in height, is able to take up the corresponding concrete pressure, and also meets the high safety requirements. It also has to guarantee an outstanding concrete finish, especially showing the features and curved areas of the piers. The contractor chose a solution which the MEVA formwork engineers offered: Mammut standard large formwork panels were combined with a few custom-built steel parts with pre-bent alkus facing sheets.

The typical stems of the piers – which for some piers reached up to a height of 11.5 m – were poured in the first concreting cycle. The complete wineglass shaped pier heads were poured in a second cycle. Climbing scaffolds KLK 230 served as support for the formwork and, at the same time, as a safe working platform. Since the pier heads had different gradients the two curved head wall formwork units were set up independently at different heights for every bridge pier.
The formwork for the piers, which are located in the central reservation between the lanes, required a special kind of bracing. A conventional bracing system would have led to narrow lanes during the construction process. MEVA were able to tailor a perfect solution with standard rentable parts. The wind loads were transferred by two Space shoring towers, which were also positioned in the central reservation.
The contractor was extremely satisfied with the formwork systems and the concrete finish obtained. Also, the formwork and bracing, which consisted mainly of standard parts with to the purpose built additions, as well as all necessary safety accessories, gave a fast and easy to assemble system for use in this situation. Altogether, a well planned contract which, from spring 2006 on, will guarantee an undisturbed flow of traffic from the South of England to the North and Scotland.

 
  • MEVA Expertise & References

    MEVA Expertise & References

    Referencen for Projets in Commercial & Residential Construction, Architectural Construction, High-Rise Construction and Civil Engineering Construction

  • South Canal Bridge, Ontario: With no crane possible at busy Hwy 400, MevaLite handles the job with ease

    South Canal Bridge, Ontario: With no crane possible at busy Hwy 400, MevaLite handles the job with ease

    One of Ontario’s busiest transportation corridors, Highway 400, began a major expansion project through Kings Township in late 2016. This $79.3 million dollar (CAD) project includes the widening of the highway from three to six lanes in each direction for a two mile stretch and also entails safer on and off ramps, the expansion and realignment of culverts, and the replacement of two bridges − one of them the South Canal Bridge.

  • A Brand-New Theater for the Cincinnati Shakespeare Company

    A Brand-New Theater for the Cincinnati Shakespeare Company

    The new theater is called The Otto M. Budig Theater and located in Cincinnati’s Over-The-Rhine district. When completed, it will become the last section of the planned “Classical Arts Corridor” in Cincinnati, which also includes a Music Hall, School for Creative and Performing Arts, and a park.

  • Budapest: Playing in the shape sorting box

    Budapest: Playing in the shape sorting box

    Children enjoy playing with it, teachers recommend it: the shape sorting box. Based on the popular toy, the architects who conceived the new Meséskert nursery designed the play areas on the top floor as a triangle, circle, and square.

All Plastic Facing alkus
MEVA Frame Profile
... more than just formwork
  •  Select language

    Select continent and country. Language selection optional.

  •  Contact
  •  Search

    Search on our website.

  •  Newsletter

    Subscribe to our monthly newsletter.