NDLI: Axial service limit state analysis of drilled shafts using probabilistic approach

Content Provider	Springer Nature Link
Author	Misra, Anil Roberts, Lance A.
Copyright Year	2006
Abstract	Drilled shafts are, typically, designed by considering the axial ultimate limit state. In this design methodology, the axial displacement requirements are verified once the design is completed. As an alternative, drilled shafts may be designed by considering the axial service limit state. Service limit state foundation design is more efficient when done using the load and resistance factor design (LRFD) approach. Furthermore, reliability may be rationally incorporated into the design process that utilizes the LRFD method. In this paper, we develop probabilistic approaches for axial service limit state analysis of drilled shafts. The variability of shaft-soil interface properties is modeled by lognormal probability distribution functions. The probability distributions are combined with a closed-form analytical relationship of axial load-displacement curves for drilled shafts. The closed-form analytical relationship is derived based upon the “t–z” approach. This analytical relationship is used with the Monte Carlo simulation method to obtain probabilistic load-displacement curves, which are analyzed to develop methods for determining the probability of drilled shaft failure at the service limit state. The developed method may be utilized to obtain resistance factors that can be applied to LRFD based service limit state design.
Starting Page	1561
Ending Page	1580
Page Count	20
File Format	PDF
ISSN	09603182
Journal	Geotechnical and Geological Engineering
Volume Number	24
Issue Number	6
e-ISSN	15731529
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2006-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	drilled shaft failure probability load-displacement relation serviceability Hydrogeology Geotechnical Engineering Civil Engineering Terrestrial Pollution Waste Management/Waste Technology
Content Type	Text
Resource Type	Article
Subject	Soil Science Geology Architecture Geotechnical Engineering and Engineering Geology

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