Can a single-column pier bridge overturn?

The overturning process of single-column-pier bridges is well revealed in these studies, and the results show that the overturning can be effectively judged by the support reaction, i.e. when the reaction of some bearing has a negative value, the structure is considered in the risk of overturning.

How to analyze overturning limit analysis of a single-column pier bridge?

Analytical method for overturning limit analysis of single-column pier bridges Monitoring and evaluation of overturning resistance of box girder bridges based on time-varying reliability analysis Measurement of the dynamic displacements and of the modal frequencies of a short-span pedestrian bridge using GPS and an accelerometer

Is bridge overturning anti-resilience?

Whereas overturning is one of the worst anti-resilience scenarios, the resilience design against bridge overturning is highlighted through a detailed discussion including the calculation methods of anti-overturning factor, overturning stability of curved bridges, reasonable disposition of supports, and anti-overturning countermeasures.

Is a single-column pier bridge safe?

To ensure the safety and applicability of the single-column-pier bridge, it is necessary to study its overturning mechanism and develop a real time monitoring system of overturning risk. To investigate the overturning mechanism, extensive studies have been performed on the overturning-stability-checking method , .

How can a bridge overturning risk monitoring system be used?

This can be achieved by using specific bridge monitoring systems. Existing bridge overturning risk monitoring systems can be divided into two categories. One is to monitor the relative displacement between the measurement points near the bearing on both sides of the girder, and further judge if the bearing is disengaged.

What is anti-overturning moment?

The anti-overturning moment can be equivalent to the resultant moment of two sides support reactions, which is about the axis of overturning. It should be noted that lateral support reaction is not necessary for the judgement of overturning risk since it contribute little to the anti-overturning moment.