Title - City, Country
Company
155
SE
AP
4
Contact
Celuos Alves de Oliveira Junior
Address Av. Brasil, 20101
21515-001 Rio de Janeiro, Brazil
Website
In 1969, the Engineer João Ricardo Mendes returned from France to
revolutionize the way tubular structures were built and designed. The
engineering concepts acquired combined with work experience were
essential to transform his office into one of the most respected companies
in the industry. Founded in Recife, in October 1969, Estub was a pioneer
in the development of tubular structures. In 1975 a partnership with
Entrepose started, which allowed a bit of European technology to be
brought to Brazil. This technology has been carefully adapted to the
realities of Brazilian market.
Owner
Cimento Lafarge
General Contractor
Simi Brasil
Engineering Office
Estub Grupo João Mendes
Construction Period 01/2015 - 02/2015
The Lafarge Cement Plant built a large duct at their site. For this
project a temporary structure to support the steel duct (4 m diameter,
16 mm thickness and 420 kN approximate weight) was designed using
SCIA Engineer. The duct assembly was carried out in two stages, the first
stage being the construction of the 35 m high temporary shoring structure,
comprising tubular steel towers with a circular cross-section of 48 mm and
thickness of 3.35 mm, stiffened by space trusses, with bars of the same
diameter.
For the first step of the analysis, a numerical model of the towers
determined the stiffness coefficients at the top of the support structure.
These coefficients were placed into the duct model (second phase),
featuring the towers as a flexible support structure and determining the
reactions of the supports under these conditions. Then we could return
to the model of the towers, now subjected to loading from the duct. All
the forces and displacements on the structure were determined by a
geometric non-linear static analysis, using the Newton Raphson method to
solve the equations.
Considering the challenges faced (time and precision), SCIA Engineer
Scaffolding proved to be the best solution due to its accurate results and
precision, offering best engineering construction system.
Category 4: Special Projects
Estub Sistemas Construtivos
Shoring Structure for Duct Support - Caaporã PB, Brazil
