| dc.description.abstract | Bridges, viaducts and footbridges, also known as works of art, are important structures
for our society, so it is important that designers and technical staff have the knowledge
about the technical regulations that cover these structures. The security of these
structures as well as those who use them is very important. For this, three technical
standards were chosen that must be worked together so that we have good structures
and that present road safety for all users. The standards chosen were NBR
15486/2016, on road safety devices, NBR 14885/2016, on concrete barriers, and NBR
7187/2021 on bridges, overpasses and footbridges. With this, it was chosen to analyze
these standards in order to facilitate and simplify their understanding and thus help to
have safer structures. For this, a general analysis of the standards was made, showing
their importance for the topic discussed. Afterwards, parameters that must be followed
for the definition of the safety devices were shown, as well as the criteria necessary to
design these devices. The topic of impact attenuator, important at the beginning of
safety barrier or next to a fixed obstacle, was also addressed. Finally, the criteria for
the design of concrete barriers were presented. At the end of this work, it can be
concluded that it is essential for road safety to correctly choose the best containment
device to be used, and for that, several aspects must be taken into account following
the normative recommendations. | |
