Dynamic pavement response analysis under wide-base tyre considering vehicle-tyre–pavement interaction

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Abstract
The new generation of wide-base tyres shows sustainable benefits in trucking operations and environmental impacts due to less rolling resistance at tyre–pavement interface. It is critical to estimate the influence on pavement response and performance. The objective of this study is to analyse dynamic responses of flexible pavements induced by wide-base tyres using an integrated vehicle-tyre–pavement interaction approach. The impulse response method was used to calculate critical pavement responses under moving loads with random amplitudes estimated using a full-truck model. The impact of wide-base tyre was evaluated through the ratio of critical pavement responses between wide-base tyre and dual-tyre assembly. The analysis results suggest that the prediction of long-term pavement performance under the impact of wide-base tyre needs consider the evolution of pavement surface condition and different failure mechanisms. The study findings emphasise the importance of considering vehicle-tyre–pavement interaction in analysing dynamic pavement responses.

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