Information presented on this page is intended to demonstrate the section design convergence of EN 1992-1-1: 2004 provisões para fundações isoladas que podem ser alcançadas com SkyCiv. Todos os exemplos são referenciados nos seguintes livros:
Livro 1: Bill Mosley, John Bungey, and Ray Hulse. Reinforced Concrete Design to Eurocode 2 (Seventh Edition), 2012.
Exemplo # 1 Design of Axially Loaded Isolated Footing
referência: Livro 1, p.300.
DESCRIÇÃO
A pad footing is required to resist characteristic axial loads of 1000 kN permanent and 350 kN variable from a 400 mm square column. O cisalhamento resultante, momento, load transfer, and development length are compared with manual calculations. O modelo de fundação encontra-se no plano X-Z.
GEOMETRY AND MATERIAL PROPERTIES
Figura 2: Footing model and material properties of example #1
CARREGANDO
Two characteristic loads are considered:
\( \texto{G} = 1000.00 \texto{ kN} \)
\( \texto{Q} = 350.00 \texto{ kN} \)
The results of service and factor load combination are computed in reference to EN 1990.
ANÁLISE
The analysis is done using the rigid conventional method. See the Isolated Footing User Manual for more explanation on using SkyCiv Foundation.
COMPARAÇÃO DE RESULTADOS
Os resultados mais significativos são comparados na tabela abaixo:
| Resultados | ||
|---|---|---|
| Parâmetro | Manual/Book Reference | SkyCiv |
| Cargas | ||
| SLS | 1500 | 1469.6 |
| ULS | 1875 | 2036.46 |
| Pressão do Solo | ||
| qs | 191.33 | 187.45 |
| qu | 239 | 259.75 |
| Flexure | ||
| Actual Moment | 482 | 523.66 |
| Capacidade de Momento | 529.92 | 556.07 |
| One way shear | ||
| Actual Shear | 455 | 508.39 |
| One Way Shear Capacity | 582 | 487.51 |
| Two way shear | ||
| u crit | 8134 | 8096.8 |
| Punching shear force | 626 | 692.69 |
| Two Way Shear Capacity | 1691 | 1420.4 |
Notas: Discrepancies on some values are due to the following:
*Actual self weight of column and footing are considered in SkyCiv. Além disso, SkyCiv requires a column height greater than zero.
*SkyCiv calculates actual measurement of the effective depth for both directions.
SkyCiv Foundation module offers an innovative and user-friendly interface for the design and analysis of an isolated footing in accordance with EN 1992-1-1: 2004 .
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