Issues in simulating falling weight deflectometer test on concrete pavements

Chen-Ming Kuo, Chih Chiang Lin, Cheng Hao Huang, Yi Cheng Lai

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Falling Weight Deflectometer (FWD) produces pavement responses using a falling mass drop. This study investigated the features involved in the finite element modeling of FWD tests to help in the calibration of backcalculation. Falling mass, model size, subgrade damping, and boundary conditions were studied to reveal the significances of these factors on pavement responses. By modeling the falling mass in finite element models, this study has justified the idea that field-measured time history of impact force can be used as an alternative to falling mass. It is also concluded that subgrade damping, self-weight of slab, and boundary conditions are significant in modeling and interpretation of FWD finite element analysis. Finite element model with at least six times radius of relative stiffness is required to simulate dynamic responses of a continuously reinforced concrete slab.

Original languageEnglish
Pages (from-to)702-708
Number of pages7
JournalKSCE Journal of Civil Engineering
Volume20
Issue number2
DOIs
Publication statusPublished - 2016 Mar 1

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Concrete pavements
Pavements
Damping
Boundary conditions
Concrete slabs
Dynamic response
Reinforced concrete
Stiffness
Calibration
Finite element method
Computer simulation

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering

Cite this

Kuo, Chen-Ming ; Lin, Chih Chiang ; Huang, Cheng Hao ; Lai, Yi Cheng. / Issues in simulating falling weight deflectometer test on concrete pavements. In: KSCE Journal of Civil Engineering. 2016 ; Vol. 20, No. 2. pp. 702-708.
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Issues in simulating falling weight deflectometer test on concrete pavements. / Kuo, Chen-Ming; Lin, Chih Chiang; Huang, Cheng Hao; Lai, Yi Cheng.

In: KSCE Journal of Civil Engineering, Vol. 20, No. 2, 01.03.2016, p. 702-708.

Research output: Contribution to journalArticle

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