VIVAN ENGENHARIA is a company specialized in design of reinforced concrete, prestressed concrete, mass concrete or roller-compacted concrete structures.

The structures are assigned to hydraulic works in general, especially Hydroelectric Power Plants, bridges, industries and buildings in general.

VIVAN ENGENHARIA has been in the area of concrete structures projects for 19 years and it is directed by Eng. Milton Emilio Vivan, who has 43 years of experience in concrete structures projects.

VIVAN ENGENHARIA is able to elaborate or verify designs in accordance to Brazilian standards, ACI, standards suitable to most of the American countries, or Euronorm, including areas subjected to seism. Alternative structural solution leading to lower overall costs are always analyzed.

In recent years, the team has developed the structural executive project for the Irara, Jataí, and Retiro Velho small hydroelectric plants (PCHs); the basic structural project for the Coxilha Rica PCH; two executive structural projects for the dams of the Jati and Ávidos hydroelectric plants (UHEs) for the São Francisco River Transposition; the structural executive project, the deficiency project, and the structural executive project for the adaptation of the Retiro PCH in São Joaquim da Barra; two projects based on the Basuca and Carlos Meira wells of the Tiquatira Station of the São Paulo Metro; the prestressed structure cover for a 35 m diameter reservoir in Praça da Bandeira in Rio de Janeiro; the Consolidated Basic Projects for the Ponte Branca and São Francisco PCHs for SOMAR in Mogi Mirim; acquired the structure of the wagon tipper from Vale in Mozambique in a geographical region outside of earthquake zones; analyzed and detected the cause and developed a solution to stop the ruptures of cables in wind turbines and other pathologies related to... Wind power generation (project under secrecy).

Currently, it is developing the ABNT NBR XXXX standard for structural bearing devices, which contains 5 parts:

Part 1 - General Rules

Part 2 - Sliding Elements

Part 3 - Bonded elastomeric bearing devices

Part 4 - Pot-type bearing devices and

Part 5 - Spherical and cylindrical devices with PTFE.

This set of standards will allow for the homologation of manufacturers and the control of factory production, through routine tests, and will continue the collection tests of bonded elastomeric devices, with some changes in relation to ABNT NBR 19783.