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
Related Articles
- EP ID EP317745
- DOI -
- Views 134
- Downloads 0
Method ot the restoring and reinforcement of damaged bending reinforced concrete elements under cyclic loading
In all the variety of external and internal influences, cyclic loading is often encountered with hardly noticeable external but the large internal changes, as a result of which the building structures receive a significa...
Features of determination of the main hydrogeological characteristics taking into account of man-made impact
Performing an evaluation of possibility of a building erection on the construction sites in the areas that are located near rivers and seas it is necessary to determine the design hydrological characteristics. Knowing th...
The effectiveness of use of cellulose ethers in mortars based on alkali-activated slag cement for self-levelling screeds
Generally, water-retaining admixtures based on cellulose ethers are developed for traditional binders (Portland cement and gypsum) systems. However, alkali-activated cements are characterized by an increased alkalinity o...
Application of dynamic information theory for research of structural formation in construction composites
Models of building composite materials structure formation processes are considered in the article. It is shown that the composite satisfies the requirements for information systems at the initial stages of the life cycl...
Accounting of centrally-compressed steel rods actual work at stability calculation
In the article, the authors investigate the actual work of coverings trusses centrally compressed steel T-section rods composed from two angles at stability calculating. Flexibility of these rods takes the value λ ˃ 60....