ULMA Construction’s solutions have made it possible to reinforce and improve the safety of the Duarte Pacheco Viaduct in Lisbon without affecting traffic, guaranteeing safe access and optimising rehabilitation work.
The Duarte Pacheco Viaduct is one of the main access roads to the city of Lisbon, and an outstanding example of 20th century architecture in Portugal. Measuring 355 m in length, it is composed of five main parts: two 40 m lateral arches, one over the railway line and the other over Avenue of the Monsanto Forest Park, two 85.80 m viaducts and a 92 m central arch over Avenue of Ceuta.
The work focused on three areas: seismic strengthening, structural repair and improvement and enhancement of the viaduct’s safety conditions.
The solutions offered by ULMA Construction have allowed the creation of work platforms and safe accesses for the execution of the reinforcement and rehabilitation works of the Duarte Pacheco Viaduct. These solutions have made it possible to carry out the works without affecting the normal operation of rail, road and pedestrian traffic on this busy road.
ULMA Construction´s solutions
ULMA Construction’s wide range of products, designed to be fully compatible with each other, allowed them to design two track protection gantries, with shoring towers, BRIO beams, profiles and ENKOFORM formwork. These gantries have ensured safe working conditions on the tracks.
In addition, BRIO scaffolding solutions, both cantilevered and suspended on the deck and on the arches, have made it possible to create safe working platforms in all areas of the viaduct. This strategy has optimised the volume of scaffolding required and reduced possible restrictions in and around the site.
On the piers and abutments, the scaffolding was supported directly on the ground and adapted to the different geometries and specific requirements of the project. In this way, the access of the workers to all the fronts of the construction site has been ensured.
Discover in this video how all these innovative solutions have made it possible to carry out the works with minimal impact on traffic on this important access road: