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Advances in Civil Engineering
Volume 2018, Article ID 3729360, 18 pages
https://doi.org/10.1155/2018/3729360
Research Article

Pseudodynamic Bearing Capacity Analysis of Shallow Strip Footing Using the Advanced Optimization Technique “Hybrid Symbiosis Organisms Search Algorithm” with Numerical Validation

1Department of Civil Engineering, National Institute of Technology Agartala, Barjala, Jirania, 799046 West Tripura, India
2Department of Mathematics, National Institute of Technology Agartala, Barjala, Jirania, 799046 West Tripura, India

Correspondence should be addressed to Arijit Saha; moc.liamg@02tijiraahas

Received 26 July 2017; Revised 25 September 2017; Accepted 9 October 2017; Published 5 April 2018

Academic Editor: Moacir Kripka

Copyright © 2018 Arijit Saha et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The analysis of shallow foundations subjected to seismic loading has been an important area of research for civil engineers. This paper presents an upper-bound solution for bearing capacity of shallow strip footing considering composite failure mechanisms by the pseudodynamic approach. A recently developed hybrid symbiosis organisms search (HSOS) algorithm has been used to solve this problem. In the HSOS method, the exploration capability of SQI and the exploitation potential of SOS have been combined to increase the robustness of the algorithm. This combination can improve the searching capability of the algorithm for attaining the global optimum. Numerical analysis is also done using dynamic modules of PLAXIS-8.6v for the validation of this analytical solution. The results obtained from the present analysis using HSOS are thoroughly compared with the existing available literature and also with the other optimization techniques. The significance of the present methodology to analyze the bearing capacity is discussed, and the acceptability of HSOS technique is justified to solve such type of engineering problems.