A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Issues in simulating falling weight deflectometer test on concrete pavements
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.
Issues in simulating falling weight deflectometer test on concrete pavements
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.
Issues in simulating falling weight deflectometer test on concrete pavements
Kuo, Chen-Ming (author) / Lin, Chih-Chiang (author) / Huang, Cheng-Hao (author) / Lai, Yi-Cheng (author)
KSCE Journal of Civil Engineering ; 20 ; 702-708
2015-04-28
7 pages
Article (Journal)
Electronic Resource
English
Issues in simulating falling weight deflectometer test on concrete pavements
| Online Contents | 2016
Assessing concrete pavements with the falling weight deflectometer
Online Contents | 1994
Assessing concrete pavements with the falling weight deflectometer
British Library Online Contents | 1994
Use of FWD device (Falling Weight Deflectometer) on concrete pavements
| British Library Conference Proceedings | 1993