Prediction of ultimate bearing capacity eccentrically loaded rectangular foundations using ANN

Sethy, B.P., Patra, C.R., Sivakugan, N., and Das, B.M. (2017) Prediction of ultimate bearing capacity eccentrically loaded rectangular foundations using ANN. In: Shukla, Sanjay Kumar, and Guler, Erol, (eds.) Advances in Reinforced Soil Structures. Sustainable Civil Infrastructures . Springer, Cham, Switzerland, pp. 148-159.

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Abstract

Extensive laboratory model tests were conducted on a rectangular embedded foundations resting over homogeneous sand bed and subjected to eccentric load to determine the ultimate bearing capacity. The depth of embedment varies from 0 to B with an increment of 0.5B; where B is the width of foundation and the eccentricity ratio (e/B) was varied from 0 to 0.15 with increments of 0.05. Based on the laboratory model test results, a neural network model has been developed to estimate the reduction factor (RF). The reduction factor can be used to estimate the ultimate bearing capacity of an eccentrically loaded foundation from the ultimate bearing capacity of a centrally loaded foundation. A thorough sensitivity analysis has been carried out to determine the important parameters affecting the reduction factor. Importance was given on the construction of neural interpretation diagram, and based on this diagram, whether direct or inverse relationships exist between the input and output parameters was determined. The results from artificial neural network (ANN) were compared with the laboratory model test results and the agreement is good.

Item ID: 49679
Item Type: Book Chapter (Research - B1)
ISBN: 978-3-319-63570-5
ISSN: 2366-3413
Keywords: eccentric load; rectangular foundation; depth of embedment; sand; neural network; reduction factor
Additional Information:

This paper was presented at the 1st GeoMEast International Congress and Exhibition, Sharm el Sheik, Egypt, 15-20 July 2017

Date Deposited: 01 Aug 2017 05:28
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering @ 100%
SEO Codes: 87 CONSTRUCTION > 8702 Construction Design > 870201 Civil Construction Design @ 100%
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