Ulma says that the construction required formwork, shoring and scaffolding solutions that combined safety, technical precision and speed of execution. Image: Ulma

Spanish-based Ulma is working on the 1.4 billion reals (US$261 million) project which sees the viaducts being built with spans of up to 75m without interrupting traffic on the Via Dutra, regarded as the busiest road in Brazil.

Ulma says that this scenario required formwork, shoring and scaffolding solutions that combined safety, technical precision and speed of execution.

The balanced Cantilever Formwork Carriage CVS was a key solution, as it enabled the casting of 5.25-metre-long segments entirely in cantilever, without the need for ground supports. This method ensured traffic continuity while optimizing execution times for large-span structures.

In sections where in-situ concreting over the road was feasible, Heavy Duty Truss System MK was employed. These structures made it possible to cover spans of up to 30 metres, supported by MK shoring towers in accessible areas.

The work is taking place in Bazil. Image: Ulma

In addition, Comain, CLR and Enkoform VMK vertical formwork systems were used for the piers, flanges and deck of the viaducts, standing out for their versatility and the high-quality finishes achieved.

The construction of the new viaducts on the Via Dutra represents a strategic step forward in Brazil’s transport infrastructure.