Predicting truck load variation using Q-Truck Model
The study of heavy vehicle forces on pavement is important for both vehicle and pavement. Indeed it was identified several factors such as environment, materials and design consideration affects pavement damage over time with traBc loads playing a key role in deterioration. Therefore, this paper pre...
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| Main Authors: | , , |
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| Format: | Article |
| Published: |
Trans Tech Publications Inc
2014
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.4028/www.scientific.net/AMM.534.105 http://dx.doi.org/10.4028/www.scientific.net/AMM.534.105 http://eprints.uthm.edu.my/5755/1/rosnawati_buhari_U.pdf |
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| Summary: | The study of heavy vehicle forces on pavement is important for both vehicle and
pavement. Indeed it was identified several factors such as environment, materials and design
consideration affects pavement damage over time with traBc loads playing a key role in
deterioration. Therefore, this paper presents dynamically varying tire pavement interaction load,
thus enable to assess the strain response of pavements influenced by road roughness, truck
suspension system, variation of axle loading and vehicle speed. A lOOm pavement with good
evenness was simulated to check the sensitivity of the dynamic loads and heavy truck vertical
motions to the roughness. The most important performance indicators that are required in pavement
distress evaluation are radial strain at the bottom of the asphalt concrete and vertical strain at the
subgrade surface was predicted using peak influence function approach. The results show that truck
speed is the most important variables that interact with truck suspension system and thus effect of
loading time are extremely important when calculating the critical. |
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