SANTOS, P. S. D.; SANTOS, Pedro Serpa Dias dos.
Resumo:
The growth of a country’s urban population brings with it a series of problems that are the result
of a lack of planning during the growth of cities. Among the consequences arising from this
process, we can mention the increase of the waterproofed area which increases the drained
volume and with it the chance of flooding. As an attempt to mitigate these problems, urban
drainage systems have been implemented in cities. These systems, when not maintained or non-
existent, also contribute to flooding. Campina Grande (PB), a medium-sized city, often suffers
with flooding due to problems in its drainage systems. One of the alternatives to mitigate this
problem, is the construction of micro detention reservoirs in large buildings. Therefore, the
objective of this work is to ascertain the feasibility of use this type of structure within buildings.
This approach was tested in a vertical building, whose drainage area is 7760.5 m². For the sizing
of the reservoir, among the existing methods, Tsuchyia method was used, which provided a
holding volume of 91 m³, greater than the available for execution. However, with the bottom
discharge and the spillways that were dimensioned working together, there will not be overload
on the urban drainage structures or in the reservoir. Allowing that the entire runoff volume that
flow through the drainage area be managed in a such way that the drainage elements operate
inside their limits, reducing the risk of flooding .
