Module 4: Pavement Design

Lecture 29 Rigid pavement design

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Combination of stresses

The cumulative effect of the different stress give rise to the following thee critical cases

• Summer, mid-day: The critical stress is for edge region given by $\sigma_{critical} = \sigma_e + \sigma_{t_e} - \sigma_f$
• Winter, mid-day: The critical combination of stress is for the edge region given by $\sigma_{critical} = \sigma_e + \sigma_{t_e} + \sigma_f$
• Mid-nights: The critical combination of stress is for the corner region given by $\sigma_{critical} = \sigma_c + \sigma_{t_c}$