Pavement Inertial Point Existence Analysis under Load Diversity

DOI

10.2991/mecae-17.2017.4How to use a DOI?

Keywords

Inertial Point; Load Diversity; Static Load; Pulse Load; Moving Load.

Abstract

Based on the original theory of the inertial point, this paper analyzed the existence of the inertial point to the rigid concrete pavement on the Winkler foundation under the pulse load and the moving load. First, according to the actual mechanical characteristics of the pavement structure, establish the finite element analysis model of the pavement structural and verify its correctness by using the Westergaard formula results. Secondly, the static load in the pavement structure model was converted to half-sine pulse load to simulate FWD load. Through analysis, there was the inertial point in the pavement structure and the maximum relative error of the inertial point distance and the deflection of the pavement structural was about 0.7% and 0.2% under the static load and the pulse load. Finally, by using the method of the moving load belt, the finite element model of the pavement structure was applied to different the speed moving load and proved that the pavement structure still exist the inertial point. The speed of the moving load and the pavement thickness had a greater impact on it. The results show that there was the inertial point to the rigid concrete pavement on the Winkler foundation under the static load, the pulse load and the moving load. Analysis results provide some guidance to apply the inertial point theory to back-calculation of the pavement structure parameters based on the moving load.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Shanqiang Li
AU  - Feng Liu
AU  - Hao Li
PY  - 2017/03
DA  - 2017/03
TI  - Pavement Inertial Point Existence Analysis under Load Diversity
BT  - Proceedings of the 2017 International Conference on Mechanical, Electronic, Control and Automation Engineering (MECAE 2017)
PB  - Atlantis Press
SP  - 20
EP  - 27
SN  - 2352-5401
UR  - https://doi.org/10.2991/mecae-17.2017.4
DO  - 10.2991/mecae-17.2017.4
ID  - Li2017/03
ER  -