Reliability-based calibration for the mechanics-based fatigue cracking design framework
2016 (English)In: ROAD MATERIALS AND PAVEMENT DESIGN, ISSN 1468-0629, Vol. 17, no 3, 529-546 p.Article in journal (Other academic) Accepted
This paper presents a new reliability-based code calibration in load resistance factor design (LRFD) format for the mechanics-based fatigue cracking analysis framework. The pavement design procedure incorporates an appropriate failure criterion and design period. Moreover, it provides uniform performance at the desired level of reliability while considering the inherent variabilities and uncertainties involved. A number of field pavement sections with well documented performance histories and high quality field and laboratory data were used for this purpose. Moreover, a reliability computation methodology that incorporates a central composite design (CCD) response surface approach (RS) is proposed. Appropriate statistical characterization of the dominant design parameters was performed considering its key role in reliability analysis. A first order reliability method (FORM) was used to compute pavement performance reliability and to establish the partial safety factors of the design procedure. Illustrative examples based on the developed LRFD procedure have demonstrated clearly its capacity of delivering designs with uniform reliability.
Place, publisher, year, edition, pages
Taylor & Francis, 2016. Vol. 17, no 3, 529-546 p.
LRFD, top-down cracking, pavement design, CCD, response surface, FORM
IdentifiersURN: urn:nbn:se:kth:diva-165276DOI: 10.1080/14680629.2015.1094397ISI: 000379747600001ScopusID: 2-s2.0-84976334795OAI: oai:DiVA.org:kth-165276DiVA: diva2:807821
QC 201608182015-04-242015-04-242016-08-18Bibliographically approved