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Numerical and probabilistic analysis...

Zevgolis, Ioannis.

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Numerical and probabilistic analysis of reinforced soil structures .

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Numerical and probabilistic analysis of reinforced soil structures ./
Author:	Zevgolis, Ioannis.
Description:	216 p.
Notes:	Adviser: Philippe L. Bourdeau.
Contained By:	Dissertation Abstracts International68-10B.
Subject:	Engineering, Civil. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3287272
ISBN:	9780549303763

Numerical and probabilistic analysis of reinforced soil structures .
Zevgolis, Ioannis.

Numerical and probabilistic analysis of reinforced soil structures . - 216 p.

Adviser: Philippe L. Bourdeau.

Thesis (Ph.D.)--Purdue University, 2007.

Reinforced soil structures have become in many occasions an attractive alternative to traditional reinforced concrete retaining structures. An application that has been employed in recent years is their use as bridge abutments, where they simultaneously function as earth retaining and load bearing structures. This research addresses two important issues that are currently omitted from conventional consideration of this type of structures.

ISBN: 9780549303763Subjects--Topical Terms:

783781
Engineering, Civil.

Numerical and probabilistic analysis of reinforced soil structures .
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005 20110518
008 110518s2007 ||||||||||||||||| ||eng d
020 $a 9780549303763
035 $a (UMI)AAI3287272
035 $a AAI3287272
040 $a UMI $c UMI
100 1 $a Zevgolis, Ioannis. $3 1264824
245 1 0 $a Numerical and probabilistic analysis of reinforced soil structures .
300 $a 216 p.
500 $a Adviser: Philippe L. Bourdeau.
500 $a Source: Dissertation Abstracts International, Volume: 68-10, Section: B, page: 6835.
502 $a Thesis (Ph.D.)--Purdue University, 2007.
520 $a Reinforced soil structures have become in many occasions an attractive alternative to traditional reinforced concrete retaining structures. An application that has been employed in recent years is their use as bridge abutments, where they simultaneously function as earth retaining and load bearing structures. This research addresses two important issues that are currently omitted from conventional consideration of this type of structures.
520 $a First, a plane strain finite element analysis is performed to investigate the performance of the system abutment - reinforced soil structure - foundation soil with respect to deformations. An elastic perfectly plastic Mohr-Coulomb model and a plasticity hardening hyperbolic model are used to capture the behavior of granular and compressible material, respectively. Using effective stress parameters, both drained and undrained conditions are simulated, the latter one accounting for full development of excess pore pressures. Analyses are performed for a variety of loading conditions, geometric characteristics, and foundation profiles, taking into account stage construction. For the conditions examined in the present study, the results indicate the absence of differential settlements that are often observed when deep foundations are part of the system. In addition, it is shown that the loads from the bridge superstructure play only a minor role in the anticipated immediate and consolidation settlements. The second issue addressed by this research, is the development of a probabilistic model in order to assess the reliability of reinforced soil structures. Geotechnical uncertainty is explicitly considered by modeling shear strength properties as random variables following beta distributions. The model is based on Monte Carlo simulations and accounts for the dependency between the involved failure mechanisms. External stability is approached as a system in series, while internal stability is modeled in two stages: a series configuration addresses the reliability per reinforcement layer, and then an r-out-of-m configuration is used to model internal stability as a system. A framework for consideration of redundancy and propagation of failure is also formulated, based on transitional probabilities and Markov stochastic processes. As an illustration, a case example of a reinforced soil structure used as direct bridge abutment is analyzed in the context of the model developed.
590 $a School code: 0183.
650 4 $a Engineering, Civil. $3 783781
650 4 $a Geotechnology. $3 1018558
690 $a 0428
690 $a 0543
710 2 $a Purdue University. $b Civil Engineering. $3 1020862
773 0 $t Dissertation Abstracts International $g 68-10B.
790 $a 0183
790 1 0 $a Bourdeau, Philippe L., $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3287272