Journal Published Online: 09 October 2018
Volume 48, Issue 4

A Novel Dynamic Detection Method of Impact Factor Considering Deterioration of Pavement Roughness

CODEN: JTEVAB

Abstract

The influence mechanism between the impact factor of bridge and pavement roughness was analyzed and a novel bridge dynamic detection method was presented in this article. Based on the vehicle-bridge vibration theory, the effect of both the spatial and frequency domain characters of pavement roughness on the impact factor were analyzed. Then, derived from the probability distribution model of the impact factor data, a new index for the dynamic increment that was excited by the pavement roughness was introduced. The new index can indicate the impact factors caused by the pavement roughness of different Power Spectral Density grades with selected assurance factors. Lastly, together with the new index, a novel dynamic detection method, which was developed from the obstacle moving truck testing method, was proposed. With a new equivalent design method, the dynamic increment excited by the artificial obstacles could be set similar to that which was caused by different degrees of pavement deterioration. The future dynamic response of the bridge could be predicted.

Author Information

Liu, Chen Guang
School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, China
Wang, Zong Lin
School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, China
Gao, Qing Fei
School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, China
Sun, Yong
School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, China
Pages: 17
Price: $25.00
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Details
Stock #: JTE20180071
ISSN: 0090-3973
DOI: 10.1520/JTE20180071