Iranian Journal of Science and Technology-Transactions of Civil Engineering, ( ISI ), Volume (40), No (2), Year (2016-5) , Pages (121-132)

Title : ( Bearing Capacity Factors of Ring Footings )

Authors: Seyed Ehsan Seyedi Hosseininia ,

Citation: BibTeX | EndNote

Abstract

In the present paper, bearing capacity factors were determined for ring footings. The footing roughness is considered in the analyses including smooth and a perfectly rough footing base. The computations were achieved by numerical simulation of ring footings using the finite difference method for different inner to outer ring radii ratio. Based on the results, it is shown that the value of all three bearing capacity factors, i.e.,N_c ,N_q , and N_g reduces with the increase of inner to outer ring radii ratio. The reduction effect is more sensible for N_g factor. Furthermore, it is seen that the footing roughness augments the value of the three bearing capacity factors. The results of the present work for N_g were compared with those of the previous published data including experimental and numerical studies, which reveals acceptable agreements. The obtained values of factors were compared for the case of circular footings as a benchmark in the analyses, which have desirable accordance with the previously published data. In the end, by applying some examples, it was shown that using the proposed bearing capacity equation, which is based on the superposition of different plastic conditions, is conservative and safe with respect to a complete plastic analysis.

Keywords

, Numerical modeling, Ring footings, Bearing capacity factors, Frictional cohesive soils
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@article{paperid:1055974,
author = {Seyedi Hosseininia, Seyed Ehsan},
title = {Bearing Capacity Factors of Ring Footings},
journal = {Iranian Journal of Science and Technology-Transactions of Civil Engineering},
year = {2016},
volume = {40},
number = {2},
month = {May},
issn = {2228-6160},
pages = {121--132},
numpages = {11},
keywords = {Numerical modeling; Ring footings; Bearing capacity factors; Frictional cohesive soils},
}

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%0 Journal Article
%T Bearing Capacity Factors of Ring Footings
%A Seyedi Hosseininia, Seyed Ehsan
%J Iranian Journal of Science and Technology-Transactions of Civil Engineering
%@ 2228-6160
%D 2016

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