The "Second story of the Mexico-Puebla highway" structure in Mexico was executed by MEXPREPAC, a subsidiary of PACADAR in Mexico.
The section executed by MEXPREPAC was 6.40 km long, 21.00 m wide with four branches of variable width with a length of 1.00 km. The project management was carried out by Euro Estudios México. The project solution was based on isostatic spans with different types of precast concrete elements:
- Headstock (Pier caps)
- Lattice-reinforced precast slabs
With respect to the joints with sheaths, Pacadar designed an alternative proposal for the Pillar-Lintel joint, which was included experimentally in three of the columns of the viaduct, worked correctly with the 7.2-degree Ritcher earthquake of last February in Puebla . This type of joint, which is often made in prefabricated structures, has an excellent dynamic behavior, which has been observed in seismic regions such as the United States or Chile. The joint is made by areas of concrete and liquid mortar, responding to the design of seismic normative regulations.
PACADAR, apart from its long history that guarantees experience and guarantee of the best results, is able to adapt to the demands of the project, with innovative and functional solutions due to its experienced technical and human team.