EFFECT OF NONLINEAR TEMPERATURE GRADIENT ON RESPONSES OF JOINTED CONCRETE PAVEMENTS

Authors

  • M. A. Zokaei Ashtiani Department of Civil Engineering, University of Texas at El Paso, El Paso, Texas, USA
  • C. Carrasco Department of Civil Engineering, University of Texas at El Paso, El Paso, Texas, USA
  • S. Nazarian Department of Civil Engineering, University of Texas at El Paso, El Paso, Texas, USA

Keywords:

Rigid pavement, tempearature gradient, traffic load, friction

Abstract

Since the initial development of pavement analysis software in the early 1970’s, significant improvements have been conducted to enhance the capabilities of the finite element based jointed pavement analysis tools. A series of software development efforts have culminated in the production of NYSLAB, a jointed pavement analysis tool that has the capability to predict the complete thermo-mechanical responses. This paper presents a series of studies developed in NYSLAB to model nonlinear thermal gradients in concrete pavements. Nonlinear temperature gradients can produce slab expansion and contraction that lead to the generation of frictional tractions between slabs and foundation. The results presented here highlight the importance of considering nonlinear thermal gradient and the effect of frictional tractions in the analysis of jointed concrete pavements since they have a significant impact on PCC slabs bending stresses.

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Published

2018-07-20

Issue

2013: Proceedings Ninth International Conference on the Bearing Capacity of Roads, Railways and Airfields Vol 1

Section

Articles