Critical Appraisal of Codes for Foundation Design and Role of Reliability-Based Approach

Nazeeh, KM and Babu, GLS (2019) Critical Appraisal of Codes for Foundation Design and Role of Reliability-Based Approach. In: Indian Geotechnical Journal, 49 (5). pp. 467-477.

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Abstract

The variabilities or uncertainties of the design properties affect the design significantly, and a systematic approach to capture these variations is essential in the design of foundations. Reliability-based design (RBD) can consider the variations in the design properties in a systematic manner. First-order reliability method estimates reliability index at design points which can be used for correlated non-normal random variables. The influence of variability of design properties on foundation design is illustrated by comparing different design approaches such as IS code-based design, Eurocode 7-based design and RBD. Further, the significance of different failure modes and the influence of these on system reliability are also illustrated. Propagation of uncertainty is shown using probability distribution of the allowable load which is obtained using numerical simulations in conjunction with response surface method and Monte Carlo simulations.

Item Type:	Journal Article
Publication:	Indian Geotechnical Journal
Publisher:	Springer
Additional Information:	The copyright for this article belongs to Springer
Keywords:	Foundations; Intelligent systems; Monte Carlo methods; Numerical methods; Probability distributions; Structural design; Surface properties, Design approaches; First order reliability methods; Normal random variable; Probabilistic analysis; Propagation of uncertainties; Reliability based design; Response surface method; System reliability, Reliability, design method; failure analysis; foundation; probability; probability density function; reliability analysis; response surface methodology
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	05 Jan 2023 09:12
Last Modified:	05 Jan 2023 09:12
URI:	https://eprints.iisc.ac.in/id/eprint/78778

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