International Journal of Image, Graphics and Signal Processing (IJIGSP)
IJIGSP Vol. 3, No. 1, 8 Feb. 2011
Cover page and Table of Contents: PDF (size: 241KB)
DYNAMIC JOINT LOAD TRANSFER EFFICIENCY OF RIGID PAVEMENT
Full Text (PDF, 241KB), PP.17-23
Views: 0 Downloads: 0
Author(s)
YU Xinhua
1,*
WU Xiaochun
2
Index Terms
Pavement, joint load transfer efficiency, pavement damping, foundation reaction modulus, foundation damping, strain, deflection
Abstract
The mechanistic analysis presented in this paper is only the beginning of new approach for understanding the real joint load transfer capability on airport and highway concrete pavements. It gives up the two major assumptions those have been popularly adopted by hundreds of published papers: the load is transferred under a wheel with zero speed and with fixed position. The real load transfer in field is always under wheels with non-zero speed and with varied position at any moment. The objective of this study focuses on quantifying the dynamic effects of a moving wheel while it is crossing a joint on a pavement. The analysis is conducted using a model of two-slab system on Kelvin foundation under a moving wheel with variable speed v, different pavement damping Cs, foundation reaction modulus k and foundation damping Ck. The dynamic joint load transfer efficiency is temporarily and empirically defined by the peak strain ratio LTE(S) on the two sides of a joint. The primary findings include: (1) The higher speed of a moving wheel leads to the higher LTE(S);(2) The larger the pavement damping Cs leads to the higher LTE(S);(3) The numerical ratio c(=LTE(S)dynamic/ LTE(S)static) varies in the range 1 to 2 mainly depending on speed v and damping Cs;(4) The LTE(S)dynamic is not sensitive to foundation reaction modulus k and foundation damping Ck. Further researches are needed for appropriate applications of the new model in practice.
Cite This Paper
YU Xinhua,WU Xiaochun, "DYNAMIC JOINT LOAD TRANSFER EFFICIENCY OF RIGID PAVEMENT", IJIGSP, vol.3, no.1, pp.17-23, 2011. DOI: 10.5815/ijigsp.2011.01.03
Reference
[1]Guo, Edward.H (2003). “Proof and Comments on an Extensively Used Assumption in PCC Pavement Analysis and Evaluation”, ASCE Journal of Transportation Engineering, Vol. 129, No.2, March/April 2003.
[2]FAA, 2009, Airport Pavement Design and Evaluation AC 150/5320-6E, Aug. 18, 2009.
[3]Dong, M and G. Hayhoe, 2002 “Analysis of Falling Weight Deflectometer Tests at Denver International Airport”, FAA Technology Transfer Conference, 2002.
[4]Maitra, S. R., K. S. reddy adn L.S. Ramachandra, “Load Transfer Characteristics of Dowel Bar System in Jointed Concrete Pavement”, Journal of Transportation Engineering, Vol. 135, No. 11, November 1, 2009, page 813 – 821
[5]A.M Tabatabaie. Structural analysis of concrete pavement joints [D]. Illinois: University of Illinois at Urbana -Champaign, 1978
[6]Y.T. Chou, and Y. H. Huang. A computer program for slabs with discontinuities, Proceedings, International Air Transportation Conference, 1979, 1:121-136
[7]T. Nishizawa, T. Fukuda, S. Matsumo, A refined models of doweled joints for concrete pavements using FEM analysis. [C]//Proceedings, 4th international concference on concrete pavement Design and Rehabilitation, Purdue University, 1989:735-745
[8]A.M Ioannides, and G.. T. Korovesis, Aggregate interlock: a pure shear load transfer mechanism. TRR, 1990, 1286:14-24
[9]A. M. Ioannides, G. T. Korovesis, Analysis and design of doweled slab-on-grade pavement systems [J], Transportation Engineering Journal, ASCE, 1992, 118(TE6): 745-768
[10]H. Guo, J. A. Sherwood, M. B. Snyder Component dowel-bar model for load transfer systems in PCC pavements [J].Journal of Transportation Engineering, ASCE, 1995, 121(3): 289-298
[11]Guo, E. “Joint Modeling for JPCP, Success and Pending Problems”, Proceeding of BCR2A 2009 International Conference, page 531-542, edited by Erol Tutumluer & Imad L. Al-Qadi.
[12]A.K. Chopra, Structural Dynamics [M]. Beijing: Tsinghua University Press, 2009.
[13]ANSYS Inc., ANSYS Theory Reference 10.0[R], 2005
[14]Jingbo LIU, Xiuli DU. Structural Dynamics [M].Beijing: China Machine Press, 2005(in Chinese).
[15]AA, 2009, Airport Pavement Design and Evaluation AC 150/5320-6E, Aug. 18, 2009.
[16]Wadkar, A, A Zapata and L Musumeci, 2010 “Analysis and Evaluation of Load Transfer Efficiency of Rigid Airfield Pavements”, Presentation in Data Analysis Working Group Forum, TRB 2010.
[17]Wadkar,A, A. Norton, C. Tomlinson, A. Zapata, L. Musumeci, E.H. Guo, D.B. Cleary, Y. A. Mehta 2010 “Load Transfer Efficiencies of Rigid Airfield Pavement Joints Based on Stresses and Deflections”