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1998•JOURNAL OF PAVEMENT ENGINEERING JSCEOpen access

CONCRETE PAVEMENT STRUCTURAL EVALUATION BASED ON FWD DEFLECTION

Hiroji Koseki, Boming Tang, Teruhiko MARUYAMA

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Abstract

By calibrating of existing concrete pavement standard structure with FEM analysis, the critical deflection values under FWD loading condition were proposed. And then, a simple in-situ backcalculation procedure was developed, which can be conveniently used to estimate the foundation modulus and slab elastic modulus. By using both methods, it is possible to evaluate the concrete pavement structure in case of network level and project level.

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What this paper is about

By calibrating of existing concrete pavement standard structure with FEM analysis, the critical deflection values under FWD loading condition were proposed. And then, a simple in-situ backcalculation procedure was developed, which can be conveniently used to estimate the foundation modulus and slab elastic modulus. By using both methods, it is possible to evaluate the concrete pavement structure in case of network level and project level.

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Available abstract

By calibrating of existing concrete pavement standard structure with FEM analysis, the critical deflection values under FWD loading condition were proposed. And then, a simple in-situ backcalculation procedure was developed, which can be conveniently used to estimate the foundation modulus and slab elastic modulus. By using both methods, it is possible to evaluate the concrete pavement structure in case of network level and project level.

Key concepts: Deflection (physics), Slab, Structural engineering, Geotechnical engineering, Modulus, Finite element method, Young's modulus, Asphalt pavement

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