Comparação das vazões de projeto pelo método racional e método tempo área para bacias urbanas do município de Goiânia – Go
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Data
2012-06
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Editor
Ricardo Prado Abreu Reis
Resumo
The inefficiency of some devices and undersizing urban drainage accurately
reflect the lack of studies, regarding the design flows resulting from rainfall. This work
results from a comparative analysis of two methods for determining the flow of design in
urban and rural basins. The study was carried out on three basins in the city of Goiânia ‐
GO with different values of drainage area (Ruivinho, Mingau e da Cruz). With data from
the physical characteristics of the basin was used a simulation method that yielded the
design rainfall for different return periods for sections outfall. We then employed the
rational methods and time‐area to determine the design flow. The values found for the
rational method have not varied for the basins in question, one can say that the difference
was insignificant. This study demonstrates that the rational method tends to overestimate
the flows of the project and should not be used for basins exceeding 1 km2 for not
considering the translation in the basin and the way of it.
Descrição
Palavras-chave
Método racional, Método tempo‐área, Drenagem urbana, Rational method, Method time‐area, Urban drainage
Citação
SEIBT, Ana Carolina; BARBOSA, Duane Izabel; SALGADO, Aline de Arvelos; FORMIGA, Klebber Teodomiro Martins. Comparação das vazões de projeto pelo método racional e método tempo área para bacias urbanas do município de Goiânia – Go. Revista Eletrônica de Engenharia Civil, Goiânia, v. 4, n. 2, abr./jun. 2012. Disponível em: <https://www.revistas.ufg.br/reec/article/view/19513/11543>.