Engineering Transactions, 67, 1, pp. 55–73, 2019
10.24423/EngTrans.970.20190214

Evaluation of Measured Strain Responses to in Situ Vehicular Loading for Typical Asphalt Pavements

Chuan XIAO
1. Department of Transportation and Municipal Engineering, Sichuan College of Architectural Technology 2. Department of Civil and Environmental Engineering, University of South Florida
China

To characterize the dynamic behavior of typical asphalt pavements, which is induced by a complex loading system coupled with environmental effects, full-scale field tests were conducted on instrumented sections with embedded sensors. The impacts of vehicular loading factors and pavement temperature on strains at the bottom of asphalt layers were analyzed in the presence of in situ dynamic loading. According to orthogonal array tests, the impact levels of loading factors were quantified through analysis of variance. Furthermore, the temperature conversion factors of measured strain were explored using regression analysis. These results show that the measured strains present an asymmetry over time. The strain response goes up with increasing axle load and decreases with growing speed. Compared to the speed and the tire inflation pressure, the axle load plays a dominant role in strain responses. The
estimated temperature conversion factor facilitates the strain conversion between non-standard temperature conditions and a required reference temperature.
Keywords: asphalt pavement; measured strain response; vehicular loading; temperature; conversion factor
Full Text: PDF

References

Monismith C.L., International conferences-twenty five years of contributions to asphalt concrete pavement design and rehabilitation, Proceedings of 6th international conference on structural design of asphalt pavements, 2: 2–18, 1987.

Yao Z.K., Structural design of asphalt pavements [in Chinese], China Communications Press, Beijing, 2011.

ARA (Applied Research Associates), Guide for mechanistic-empirical design of new and rehabilitated pavement structures, NCHRP 1-37A Final Rep., Transportation Research Board, Washington, DC, 2004.

Niki D.B., Stephanos V.T., George D.H., Fatigue cracking failure criterion for flexible pavements under moving vehicles, Soil Dynamics and Earthquake Engineering, 90: 476–479, 2016.

Fundowicz P., Micher J., Semi-empirical Model of tire-pavement contact, Engineering Transactions, 48(3): 205–220, 2000.

Worel B.J., Clyne T.R., Low-volume road performance related to traffic loadings at Minnesota road research project, Transportation Research Record, 1989(2): 300–305, 2007.

Priest A.L., Timm D.H., A full-scale pavement structural study for mechanistic-empirical pavement design, Journal of the Association of Asphalt Paving Technologists, 74: 519–556, 2005.

Willis J.R., Timm D.H., Development of stochastic perpetual pavement design criteria, Journal of the Association of Asphalt Paving Technologists, 79(1): 561–595, 2010.

Al-Qadi I.L., Loulizi A., Elseifi M., Lahouar S., The Virginia SMART ROAD: the impact of pavement instrumentation on understanding pavement performance, Journal of the Association of Asphalt Paving Technologists, 73(3): 427–465, 2004.

Sargand S., Green R., Khoury I., Instrumenting Ohio test pavement, Transportation Research Record: Journal of the Transportation Research Board, 1596: 23–30, 1997.

Garg, N., Hayhoe G.F., Asphalt concrete strain responses at high loads and low speeds at the national airport pavement test facility (NAPTF), Proceedings of the 2001 ASCE Airfield Pavement Specialty Conference, 2001.

Islam, M.R., Tarefder R.A., Measuring thermal effect in the structural response of flexible pavement based on field instrumentation, International Journal of Pavement Research and Technology, 6(4): 274–279, 2013.

Gajewski M., Bańkowski W., Dariusz S., Analysis of Fatigue Damage on Test Sections Submitted to HVS Loading, The Baltic Journal of Road and Bridge Engineering, 33(8): 255–262, 2013,

Elseifi M.A., Mohammad L.N., Zhang Z., Assessment of Stress and Strain Instrumentation in Accelerated-Pavement Testing, International Journal of Pavement Research and Technology, 5(2): 121–127, 2012.

Wang Y., Sun T., Lu Y., Si C., Prediction for Tire-Pavement Contact Stress under Steady-State Conditions based on 3D Finite Element Method, Journal of Engineering Science and Technology Review, 9(4): 17-25, 2016.

Dong Z.H., Lv P.M., Influence of axis's load and speed on dynamic response of semi-rigid base of asphalt pavement [in Chinese], Journal of Chang’an University (Natural Science Edition), 28(1): 32–36, 2008.

Dong, Z.j., Liu H., Tang Y.Q., Field Measurement of Three-Direction Strain Response of Asphalt Pavement [in Chinese], Journal of South China University of Technology (Natural Science Edition), 37(7): 46–51, 2009.

Dong Z.H., Lv P.M., Liu X., Test on dynamic response of asphalt pavement at large longitudinal slope section [in Chinese], Journal of Chang’an University (Natural Science Edition), 33(4): 7–11, 2013.

Timm H.P., Priest A.L., Flexible Pavement Fatigue Cracking and Measured Strain Response at the NCAT Test Track [in Chinese], in Proceedings of the 87th TRB Annual Meeting, 2008.

Qiu Y.B., Experimental design and data processing [in Chinese], Science and Technology of China Press, Beijing, 2008.




DOI: 10.24423/EngTrans.970.20190214

Copyright © 2014 by Institute of Fundamental Technological Research
Polish Academy of Sciences, Warsaw, Poland