01625618

Component

The accurate modeling of the main features of continuously reinforced concrete pavements (CRCPs) is of primary importance in a mechanistic-empirical pavement design procedure. The use of the finite element (FE) method as a comprehensive tool for modeling the responses of rigid pavements (in general) and CRCP (in particular) has been limited because of the complexities associated with rigorous implementation by pavement engineers. A significant amount of research has been conducted to improve the design of CRCPs under traffic, environmental, and thermal loads. To develop a reliable model that better represents the behavior of CRCP, a clear understanding of the interaction between the concrete and steel is essential. This study presents the preliminary steps in an attempt to model practically the interaction between the CRCP concrete and steel using a 3-D FE model. Concrete stress distributions due to linear temperature gradient within a concrete slab and bond slip relation between the concrete slab and reinforcing steel using connector elements were examined in this paper. The results presented demonstrate the importance of accurately modeling the bond slip between concrete and steel since it has a significant impact on the concrete stress distributions along the slab.

This paper was sponsored by TRB committee AFD50 Standing Committee on Design and Rehabilitation of Concrete Pavements. Alternate title: Development of a Numerical Simulation Tool for Continuously Reinforced Concrete Pavements: A Feasibility Study.

01618707

17-05220

English

11p

2017

Transportation Research Board 96th Annual Meeting

Digital/other

Figures; References; Tables

Concrete; Continuously reinforced concrete pavements; Finite element method; Mechanistic-empirical pavement design; Reinforcing steel; Simulation; Temperature gradients

Bond slip; Interaction (Materials)

Design; Highways; Pavements

Transportation Research Board Annual Meeting 2017 Paper #17-05220

TRIS, TRB, ATRI

Dec 8 2016 12:02PM