Numerical modeling of cyclic temperature operating condition on SP «Lira-Sapr»
Journal Title: Вісник Одеської державної академії будівництва та архітектури - Year 2017, Vol 1, Issue 67
Abstract
The study of the stress-strain state caused by forced temperature deformations requires to take into account the changes of the physical and mechanical properties of concrete in time, as well as its creep. There are two types of heating structures: cyclic and stationary. The software packages such as Ansys, LIRA-SAPR, Code Aster make possible to take into account both types of operating conditions of buildings when modeling or the analysis of the strength and stiffness properties. The article is devoted to the investigation of the stress-strain state of concrete and reinforced concrete structures taking into account forced deformations and thermal creep. The basic equations to find the thermal creep function are presented, as well as an algorithm to realize the calculation of temperature creep strains by the finite element method. The article also considers the process of creation of a structure computer model and analysis of its stress-strain state with a change of the temperature operating condition. The analysis of the kinematic and static characteristics of the calculated model is carried out.
Authors and Affiliations
О. , Bashynska, M. , Barabash, А. , Pikul
Keywords
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