Analysis of the influence of structural features of nodal connections on the load-carrying capacity of centrally compressed rods of structural coatings
Journal Title: Металлические конструкции - Year 2017, Vol 23, Issue 3
Abstract
The article presents the analysis of the stability of centrally compressed rods with initial geometric imperfections, performed with the help of volumetric finite element modeling of rods taking into account the design features of nodal connections. The analysis of 5 standard sizes of tubular elements in accordance with GOST 10704-91 «Electrically welded steel welded pipes» (in the range from 48.03.0 to 102.03.5 mm) in the software package of the family LIRA-CAD. The calculation is performed in a geometrically nonlinear setting in the elastic stage of the material. In the analysis of stability, the stability factors of stability are analyzed from the results of nonlinear calculation (ky, np) and in the direct analysis of stability (ky). Refined values of the critical force from the nonlinear calculation data (Ncr, NR) and from the stability analysis (Ncr, A) are presented. The obtained data were compared with the values of the critical force, determined from DBN V.2.6-198: 2014 «Steel structures» (Ncr, DBN) and Euler critical force (Ncr, E). With the help of multiple linear regression, Microsoft Excel has established a generalized approximating relationship between the significant factors affecting the refined value of the critical force (Ncr).
Authors and Affiliations
Yevgen Gorokhov, Alexander Mushchanov
Keywords
Related Articles
- EP ID EP448834
- DOI -
- Views 130
- Downloads 0
The Loads and Actions Effects on the Decision of Narrow-Band Antenna Support Design Shape
The article analyzes the impact of loads and actions effects on the decision of narrow-band antenna support design shape of radio relay communication, it has been analyzed the group of tower supports on the design of the...
Modeling of Real Loading Diagrams of Wind Pressure on Cylindrical Tank using SCAD Software
The loading diagram of wind pressure on cylindrical wall of the tank has a difficult form that change in a plan and in height. Account of this type of load in analytical calculations is extremely difficult, in calculatin...
Numerical Determination of The Probability of Failure of a Bent Steel Rod
In this paper, we consider three different methods for calculating the probability of failure (the method of two moments, statistical tests and Monte Carlo) of the rod element. As an example, a calculation is made for a...
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...
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....