Zigang Xu, Qiang Han, Junfeng Jia, Zilan Zhong, Chao Huang - Evaluation of a current vehicle load model using weigh-in-motion records: a case in China (Vol XI, No 3)

Vilnius Gediminas Technical UniversityRiga Technical UniversityTallinn University of TechnologyBaltic Road Association

 

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2015 Impact Factor: 0.519 ©2015 Thomson Reuters, 2015 Journal Citation Report®

ISSN 1822-427X print
ISSN 1822-4288 online
 

 

 
 

"The Baltic Journal of Road and Bridge Engineering"
Vilnius: Technika, 2016, Vol XI, No 3, p. 197-204


Zigang Xu, Qiang Han, Junfeng Jia, Zilan Zhong, Chao Huang

Evaluation of a current vehicle load model using weigh-in-motion records: a case in China

DOI: 10.3846/bjrbe.2016.23 
 
In order to assess the vehicle load carrying capacity of existing bridges on the national highway G103 in Beijing, the vehicle load model for the practical traffic flow conditions needs to be determined. Based on the traffic axle load data measured by the weigh-in-motion system and the methods proposed by General Code for Design of Highway Bridges and Culverts (JTG D60-2004) and Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts (JTG D62-2004), the vehicle load parameters under practical traffic flow conditions are investigated. A typical 6-axle vehicle model with a 2-1-3 axial pattern is proposed by using the statistical analysis of total weight, axial weight, etc. The live load effects of Daliushu No. 2 Bridge, one highway bridge on the national highway G103, are analyzed using the proposed model and compared to the vehicle load model given in the Chinese code. The results show that there are great differences in the vehicle load parameters and the live load effects from the proposed vehicle load model increased by 2050% compared with the model given by the code. The overweight vehicles are potential threats to the safety of existing bridges.
 
Keywords: highway bridges, load capacity, statistical analysis, vehicle load model, weigh-in-motion (WIM).

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