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Characterization of...
Characterization of heavy traffic axle load spectra for mechanistic-empirical pavement design applications
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- Ahmed, Abubeker W., 1981- (författare)
- KTH,Statens väg- och transportforskningsinstitut,Väg- och banteknik, VBA,Transportvetenskap,Swedish National Road and Transport Research Institute, Sweden
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- Erlingsson, Sigurdur (författare)
- KTH,Statens väg- och transportforskningsinstitut,Väg- och banteknik, VBA,Transportvetenskap,Swedish National Road and Transport Research Institute, Sweden; University of Iceland
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(creator_code:org_t)
- 2014-08
- 2015
- Engelska.
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Ingår i: The international journal of pavement engineering. - : Taylor & Francis Group. - 1029-8436 .- 1477-268X. ; 16:6, s. 488-501
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Heavy traffic axle load spectrum (ALS) is one of the key inputs for mechanistic-empirical analysis and design of pavement structures. Frequently, the entire ALS is aggregated into Equivalent Number of Single Axle Loads (ESAL) or assumed to have Constant Contact Area (CCA) or Constant Contact Pressure (CCP). These characterizations affect the accuracy and computational performance of the pavement analysis. The objective of this study was to evaluate these characterizations based on predicted performances to rutting and fatigue cracking of several pavement structures subjected to ALS data collected from 12 Bridge-Weigh-In-Motion stations. The results indicated that for layers below the top 25 cm, all characterizations produced similar values of predicted rutting. However, for the top 25 cm, the methods differed in the predicted performances to rutting and fatigue cracking. Furthermore an improvement to the CCA approach was proposed that enhanced the accuracy while maintaining the same level of computational performance.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Infrastrukturteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Infrastructure Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Annan teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies (hsv//eng)
Nyckelord
- Axle load
- Heavy vehicle
- Pavement design
- Rutting
- Cracking
- Prediction
- Accuracy
- 32 Road: Pavement design
- 32 Road: Pavement design
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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