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A platform for research: civil engineering, architecture and urbanism
Finite element simulation and falling ball impact model for cement concrete pavement considering void under slab
Abstract Under-slab voids are critical to traffic safety, The acoustic vibration method can be used to accurately determine whether the road surface is de-voided or not. This paper utilizes ABAQUS to construct models of concrete pavement panels with various parametric study. The fundamental vibration frequencies of these models are computed, and their characteristics are summarized. Additionally, a model of impacting cement concrete pavement with a falling ball is established to investigate the vibration properties at different points. it can be concluded that the most significant factors affecting the vibration fundamental frequency are the foundation reaction coefficient and the void area. Delamination at the corners of the panels experiences higher maximum vibration accelerations under falling ball impact when support conditions are poorer. Longer delaminated edges correspond to greater vibration accelerations. The frequencies at various points within the delaminated area are identical, while the amplitudes mirror the same acceleration. Indicating that the position of deflation has a small effect on the vibration frequency and a relatively large effect on the vibration acceleration. This study can provide an effective and non-destructive basis for future intelligent traffic pavement inspections.
Highlights We found the most important factors affecting vibration fundamental frequency. We established the ranking parameters based on sensitivity to develop priority. We established a model of impacting cement concrete pavement with a falling ball. We established the link between vibrational sound and road de-vacuuming.
Finite element simulation and falling ball impact model for cement concrete pavement considering void under slab
Abstract Under-slab voids are critical to traffic safety, The acoustic vibration method can be used to accurately determine whether the road surface is de-voided or not. This paper utilizes ABAQUS to construct models of concrete pavement panels with various parametric study. The fundamental vibration frequencies of these models are computed, and their characteristics are summarized. Additionally, a model of impacting cement concrete pavement with a falling ball is established to investigate the vibration properties at different points. it can be concluded that the most significant factors affecting the vibration fundamental frequency are the foundation reaction coefficient and the void area. Delamination at the corners of the panels experiences higher maximum vibration accelerations under falling ball impact when support conditions are poorer. Longer delaminated edges correspond to greater vibration accelerations. The frequencies at various points within the delaminated area are identical, while the amplitudes mirror the same acceleration. Indicating that the position of deflation has a small effect on the vibration frequency and a relatively large effect on the vibration acceleration. This study can provide an effective and non-destructive basis for future intelligent traffic pavement inspections.
Highlights We found the most important factors affecting vibration fundamental frequency. We established the ranking parameters based on sensitivity to develop priority. We established a model of impacting cement concrete pavement with a falling ball. We established the link between vibrational sound and road de-vacuuming.
Finite element simulation and falling ball impact model for cement concrete pavement considering void under slab
Luo, Yong (author) / Luo, Yuanwang (author) / Wu, Chen (author) / Yussof, Mustafasanie M. (author)
2024-04-11
Article (Journal)
Electronic Resource
English
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