Autori : Vasyl Karpiuk, Matija Orešković, Yulia Somina, Anatoliy Kostiuk
ISBN 978-953-7809-64-5
Broj stranica: 89
Format: 15 x 21 cm

World practice shows that the volumes of using monolith and prefabricated reinforced concrete are increasing, and in the coming decades they will remain the main structural material. Therefore, it is obvious that the effective using of reinforced concrete, is possible with the presence of reliable, accurate and economical calculation methods. Thereby, much attention is paid towards the development of the theory of reinforced concrete. The experience of designing, construction and exploitation of span reinforced concrete structures shows that, practically, all of them work at complex stress-strain state. At the same time, the researchers pay much more attention to the calculation of strength, deformability and crack-resistance of elements in normal sections, than to the calculation of their areas near supports, including the inclined sections. Besides, a significant number of span reinforced concrete elements, is subjected to the action of low-cycle loads. They lead to such specific features of concrete work as nonlinearity of deformation, micro cracking, accumulation of residual deformations, low-cycle fatigue (fatigue damage), decompaction of concrete etc. The results of the research show that the destruction of structure under the action of low-cycle loads occurs at the smaller stresses, than the destruction of structure under the action of short duration static load.