Prediction Models for Transverse Cracking of Jointed Concrete Pavements: Development with Long-Term Pavement Performance Database

doi:10.3141/2068-03

淡江大學機構典藏 > 工學院 > 土木工程學系暨研究所 > 期刊論文 > Item 987654321/90448

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題名:	Prediction Models for Transverse Cracking of Jointed Concrete Pavements: Development with Long-Term Pavement Performance Database
作者:	Ker, Hsiang-Wei;Lee, Ying-Haur;Lin, Chia-Huei
貢獻者:	淡江大學土木工程學系
日期:	2008
上傳時間:	2013-06-24 13:18:24 (UTC+8)
出版者:	Washington: U.S. National Research Council * Transportation Research Board
摘要:	The main objective of this study was to develop improved prediction models for transverse cracking of jointed concrete pavements with the Long-Term Pavement Performance database. The retrieval, preparation, and cleaning of the database were carefully handled with a systematic and automatic approach. The prediction accuracy of the existing prediction models implemented in the recommended MechanisticâEmpirical Pavement Design Guide (NCHRP Project 1-37A) was found to be inadequate. Exploratory data analysis indicated that the normality assumption with random errors and constant variance by using conventional regression techniques might not be appropriate for this study. Therefore, several modern regression techniques, including the generalized linear model and the generalized additive model, along with the assumption of Poisson distribution, were adopted for the modeling process. The resulting mechanisticâempirical model included several variablesâsuch as pavement age, yearly equivalent single-axle loads (ESALs), accumulated ESALs, annual precipitation, freezeâthaw cycle, annual temperature range, stress ratio, and percent steelâfor the prediction of transverse cracking. The goodness of fit was further examined through significant testing and various sensitivity analyses of pertinent explanatory parameters. The tentatively proposed predictive models appeared to agree reasonably with the pavement performance data, although their further enhancements are possible and recommended.
關聯:	Transportation Research Record: Journal of the Transportation Research Board 2068, pp.20-31
DOI:	10.3141/2068-03
顯示於類別:	[土木工程學系暨研究所] 期刊論文

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