Analysis of vehicle design load standard of arch bridge

HU Da-lin; HUI Xiao-ji; XIA Chun-mei; LI Ying; ZHANG Hang

Volume 17 Issue 1

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HU Da-lin, HUI Xiao-ji, XIA Chun-mei, LI Ying, ZHANG Hang. Analysis of vehicle design load standard of arch bridge[J]. Journal of Traffic and Transportation Engineering, 2017, 17(1): 53-61.

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HU Da-lin, HUI Xiao-ji, XIA Chun-mei, LI Ying, ZHANG Hang. Analysis of vehicle design load standard of arch bridge[J]. Journal of Traffic and Transportation Engineering, 2017, 17(1): 53-61.

HU Da-lin, HUI Xiao-ji, XIA Chun-mei, LI Ying, ZHANG Hang. Analysis of vehicle design load standard of arch bridge[J]. Journal of Traffic and Transportation Engineering, 2017, 17(1): 53-61.

Citation:

HU Da-lin, HUI Xiao-ji, XIA Chun-mei, LI Ying, ZHANG Hang. Analysis of vehicle design load standard of arch bridge[J]. Journal of Traffic and Transportation Engineering, 2017, 17(1): 53-61.

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Analysis of vehicle design load standard of arch bridge

1.
School of Highway, Chang'an University, Xi'an 710064, Shanxi, China
2.
Department of Road and Bridge Engineering, Jiangsu Jiaotong College, Zhenjiang 212028, Jiangsu, China
3.
Department of Civiland Environment Engineering, University of Wisconsin-Madison, Madison 53706, Wisconsin, USA

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Author Bio:
HU Da-lin(1959-), male, professor, PhD, +86-29-82335772, dlhu@chd.edu.cn
Received Date: 2016-09-21
Publish Date: 2017-02-25

Abstract

Abstract

The influence of current overload vehicles on bridge and the applicability of vehicle design load standard in General Specifications for Design of Highway Bridges and Culverts (JTG D60—2015) to the operating vehicle load on highway were analyzed.The weigh-in-motion (WIM) measured data of vehicle loads on Guangshen Expressway were studied.The Monte Carlo method was used to simulate the random load and random spacing of vehicle, the loading effect of random fleet was programmed, and the bending moment effects of clamped arch bridge sections at the midspan and arch foot were calculated.Based on the maximum value distribution principle, the characteristic values of loading effect in the design reference period were obtained, the standard model of recommended vehicle load based on the WIM measured data was presented, and the recommended load standard was compared with the design load standard in the current code (JTG D60—2015).Calculation result shows that the effect of recommended vehicle loadstandard is well applicative and inclusive to the measured values, the errors of bending moment at the midspan are less than 7%, the errors at the arch foot are 5%-11% when bridge spans are 25-65, 110 and 120 m, and the others are less than 5%.The ratios of generated bending moment effects resulting from the putative load standard based on the measured values of Guangshen Expressway and the highway I-grade lane load of current code on the clamped arch bridge are1.24-2.18, and the average ratio is 1.80, which indicates that the traffic of Guangshen Expressway is heavy, vehicle overloading is serious, and the load standard in the current code has great deviation with the deductive load standard according to the measured vehicle load of Guangshen Expressway, so the bridge design load standard of Guangshen Expressway should properly increase based on the existing standard.
- bridge engineering,
- arch bridge,
- overload,
- random vehicle queue,
- load effect,
- load standard

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