Strength analysis of the kinematic pairs of a mobile collapsible bridge

The paper presents a strength analysis of kinematic pairs made of high-yield point steel. Simulations of the behaviour of the joint in the elastoplastic range were carried out and the effect of the amplitude of the successive load cycles on the state of internal stress after the exceedance of the yield point in the jointʹs crucial points was determined. A prestressing procedure applied to increase the strength of the kinematic pair elements through the introduction of beneficial plastic strains is presented.