Design inputs variabilities influence on pavement performance reliability

Yared Hailegiorgis Dinegdae, Björn Birgisson

Research output: Chapter in Book/Published conference outputConference publication

Abstract

Pavement design is a probabilistic process as it involves many random variables. Through the incorporation of reliability, pavement design methods consider input parameters variabilities effect on pavement performance. Load and Resistance Factor Design (LRFD) is a typical example of reliability-based design procedure. In LRFD, a set of partial safety factors are developed by modelling input parameters variabilities with representative average conditions. This paper evaluates the impact input parameters variabilities have on estimated target reliability in the case when actual variabilities are different from assumed conditions. This was achieved by evaluating a field pavement section with various combinations of input parameters variabilities. The optimized section for a given target reliability was achieved through the mechanics-based LRFD procedure and the actual reliabilities of the various cases were obtained using a methodology that uses response surface approach and first order reliability method (FORM). The results have shown that the level of input parameters variabilities used affect the target reliability considerably.

Original languageEnglish
Title of host publicationFunctional pavement design - Proceedings of the 4th Chinese-European Workshop on Functional Pavement Design, CEW 2016
EditorsSandra Erkens, Xueyan Liu, Kumar Anupam, Yiqiu Tan
PublisherCRC Press
Pages741-750
Number of pages10
ISBN (Electronic)978-1-317-28552-6
ISBN (Print)978-1-138-02924-8
Publication statusPublished - 24 Jun 2016
Event4th Chinese-European Workshop on Functional Pavement Design, CEW 2016 - Delft, Netherlands
Duration: 29 Jun 20161 Jul 2016

Conference

Conference4th Chinese-European Workshop on Functional Pavement Design, CEW 2016
CountryNetherlands
CityDelft
Period29/06/161/07/16

Bibliographical note

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