期刊名称:International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN:2347-6710
电子版ISSN:2319-8753
出版年度:2016
卷号:5
期号:4
页码:5946
DOI:10.15680/IJIRSET.2016.0504146
出版社:S&S Publications
摘要:In the context of engineering practice, the problem of the seismic bearing capacity of shallowfoundations has been solved indirectly, either due an increase of the static allowable soil pressures related to theprobability of occurrence of the design earthquake or by adopting an equivalent pseudo-static approach. However,during last decades, a series of analytical methods that directly address the problem from the seismic point of view hasbeen developed. This paper presents a parametric comparative analysis of different methods for estimating seismicbearing capacity of shallow strip foundations. Analytical methods, developed in the framework of both limitequilibrium and limit analysis theories, and also simplified design procedures typically used in practice wereconsidered. The results obtained show an important decrease of the bearing foundation capacity with increasing of themaximum earthquake acceleration, which highlights the need to obtain a measure of the reliability associated with bothcalculation methods and safety factors commonly used for seismic design