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http://dx.doi.org/10.7855/IJHE.2012.14.2.029

Estimation of Dynamic Load Amplification Factors under Various Roughness Indices and Vehicle Classes  

Choi, Jun-Seong (인덕대학교 토목환경설계과)
Seo, Joo-Won (한국도로공사 도로교통연구원)
Kim, Jong-Woo ((주)유디코.(주)ENB 기술연구소)
Publication Information
International Journal of Highway Engineering / v.14, no.2, 2012 , pp. 29-36 More about this Journal
Abstract
In this study, frequently passing vehicles with two, three, four, and five axles were chosen through traffic volume analysis in Kyung-In Expressway in order to analyze how the road roughness and vehicle speed affect on the dynamic loads for roads in various vehicle classes. Dynamic loads according to chosen vehicles are estimated by TruckSim program. Dynamic load amplification factor is ratio between dynamic and static loads, and it is also determined for each vehicle classes. From the result of dynamic loads estimated by the dynamic load amplification factor, it is shown that for three-axles vehicle, when IRI is 3.5 and vehicle speed is 100km/hr, asphalt pavements receive additional 36% of static loads in maximum. The analysis of the amplification factor according to each vehicle classes also indicates that the amplification factor increases as the distance between the axles becomes smaller and each axle receives more loads.
Keywords
asphalt pavement structure; dynamic load amplification factor; IRI; roughness; vehicle class; vehicle speed;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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