Two-step Method of Designing Distribution of Material Stiffness in Perpetual Pavement to Prevent Structural Rutting and Fatigue

Aleksander Szwed , Inez Donata Kamińska

Abstract

A two-step method for stiffness distribution design with application to perpetual pavements is proposed. In the first step resultant stiffness of asphalt concrete layers is estimated using nomograms obtained via solution of three-dimensional problem of a layered half-space. As controlling parameter vertical strain in the soil base is used. In the second step simplified model of composite beam is applied to predict distribution of stiffness within the asphalt layers. In order to derive design formulas, criterion of equality of stiffness of composite beam's cross-section and stiffness of a homogenous reference layer being a part of layered system, and criterion of horizontal tensile stress reduction at critical locations are used. Obtained formulas require input of thicknesses of individual layers and some material properties, including strain endurance limits.
Author Aleksander Szwed IIB
Aleksander Szwed,,
- The Institute of Civil Engineering
, Inez Donata Kamińska IIB
Inez Donata Kamińska,,
- The Institute of Civil Engineering
Journal seriesProcedia Engineering, ISSN 1877-7058
Issue year2016
Vol153
Pages706-714
Publication size in sheets0.5
ConferenceXXV Polish – Russian – Slovak Seminar “Theoretical Foundation of Civil Engineering", 11-07-2016 - 16-07-2016, Zilina, Słowacja
Keywords in Englishperpetual pavement; long-life pavement; asphalt concrete; stiffness; fatigue; rutting
DOIDOI:10.1016/j.proeng.2016.08.230
Languageen angielski
File
SZWED A..pdf (file archived - login or check accessibility on faculty) SZWED A..pdf 326.8 KB
Score (nominal)15
ScoreMinisterial score = 15.0, 28-11-2017, ArticleFromJournalAndMatConf
Ministerial score (2013-2016) = 15.0, 28-11-2017, ArticleFromJournalAndMatConf
Citation count*0 (2016-09-06)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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