The need for strengthening of precast concrete structures in service occurs not only in reconstruction cases because of their physical deterioration but also as a result of seismic effects. In seismic regions (Uzhgorod belongs to those regions with seismicity of 7 points) it is extremely important to make calculations of the structure on seismicity, as well as design and quality of production of precast bearing concrete structures in case of specific loadings. The value of occasional seismic loadings depends on the weight of structures and the strength of shocks according to the Richter scale. The negative impact of seismic loadings can be reduced significantly with the use of continuous schemes of the leaning beam structures by addressing special design to supporting joints. The continuous schemes provide a redistribution of
bending moments (the decrease of span due to the appearance of support). Also it is important to use the monolithic nets and areas along the contour of overhead cover and roofing, that makes it possible to increase disk surface stiffness and create the conditions for more equable redistribution of efforts.
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