Estimation of Stability of Central Compressed Rods of Structural Coatings Taking into Account Structural Features of Knot Connections and Nonlinear Work of Material
Journal Title: Металлические конструкции - Year 2018, Vol 24, Issue 3
Abstract
The paper presents the analysis of the stability of centrally compressed rods, taking into account the structural features of the node joints for which the models of volume finite element rods are made, the analysis of the stress-strain state of 6 standard sizes of tubular elements according to GOST 10704-91 «Electrically welded steel welded pipes» (in the range from 1144 to 15912 mm) in the software package of the LIRA-CAD family. The calculation is performed in a physically nonlinear setting in the elasto-plastic stage of the material. In the analysis of stability, the stability factor was analyzed from the results of nonlinear calculation (kf.s). Refined values of the critical force (Ncr, e.p.s) are presented. The obtained data were compared with the values of the critical force determined by DBN B.2.6-198:2014 «Steel structures» (Ncr, DBN). With the help of multiple linear regression, a generalized approximating relationship between significant factors influencing the refined value of the critical force (Ncr) and the value of the total deviation (ypr+ymax/l) is established in the Microsoft Excel program.
Authors and Affiliations
Yevgen Gorokhov, Anton Tanasoglo, Alexander Mushchanov
Keywords
Related Articles
- EP ID EP536585
- DOI -
- Views 92
- Downloads 0
Full Factor Experiment for Optimization of Geometric Parameters of the Glass-Furnace Arches
The article considers the conduct of a full factorial experiment. The hypothesis of the reproducibility of the experiments was verified, which confirmed the fact that there was no need to conduct a repeat experiment. The...
Constructive Solutions of the Joint Connection of Space Structural for Industrial Buildings
The article presents analysis of existing technical solutions joints of space structures of coverings. The experience of domestic and foreign researchers in application of such structures to cover industrial buildings ha...
Numerical Researches of the Prop of a 65 kW Wind Power Plant
This article presents the results of numerical research of the steel lattice support of a wind power plant (WPP) from angle profile. The main purpose of the work was to determine the forces and displacements from the act...
Influence of Forced Displacement of Earth Surface in Undermining Area on the Stress-Strain State of Multistoried Frame Building
In the article the analysis by the influence of forced displacement of earth surface in an undermining area to additional forces distribution in the elements of multistoried frame building with different rigidity of base...
A Determination of the Residual Life of Steel Bin of Coke-Screening Station Taking into Account Operating Corrosive Damages
The article presents the results of analysis of the tensely-deformed state of a steel bunker for storage of coke. The calculation is performed according to engineering procedure and using software complex LIRA-SAPR 2013....