| dc.description.abstract | This research aims to bring information that contributes satisfactorily to the study of
reinforced concrete walls molded in loco, addressing the history of this construction
system and indications for the constituent stages of works of this nature. A greater
focus was given to the structural behavior of the walls, in which buildings of 5, 15 and
45 floors were analyzed, which are buildings with the use of the construction system
in the national scenario, with different typologies concerning their destination to the
population. For the 5-floor typology, a comparative analysis was carried out between
building on conventional concrete and cellular concrete walls since the use of the
latter is in constant discussion by the technical environment. Similarly, for the 15-floor
typology, a comparison was made between concrete wall and structural masonry,
since they are competing methodologies and this number of floors can be considered
a maximum limit for the non-use of reinforced masonry. A third analysis was carried
out for a high building with concrete walls, since the number of floors defined is a
value close to the highest building of this methodology in Brazil. The analyzes was
carried out in software based on the calculation of the Finite Element Method (FEM),
showing results, through contour maps, referring to efforts, stresses, displacements,
and steel area necessary for the design. Checks for overall stability of buildings in
reinforced concrete walls were carried out, as well as checks for the design of a
given wall of all models analyzed. From the obtained results it can be concluded that
using the calculation methods already established for structural masonry is valid,
since the structural behavior of the buildings were quite similar. Regarding the
building of 5 floors using cellular concrete, the analyzed wall could not be designed
for compression, and limitations for its use should be reviewed. From the obtained
results in this research, it seems that buildings in concrete walls have excellent
behavior due to horizontal actions, since all the walls act as braces and they have a
high self-weight turning out to be a set of great rigidity. | |
