Numerical-Analytical Design Procedure of Solution the Stability Problem of Spatial Lattice Structures
Abstract: In the article the numerical-analytical design procedure of solution the stability problem of lattice diagonal elements of steel supports with one-bolted joints under complex stress state has been given. The general stability of the spatial lattice truss with inclined belts for the most common type of a lattice used in overhead power transmission lines’ (OPTL) supports, has been considered. The solution of the problem has been realized in the software package MS «Excel» using nonlinear mathematical device of finding the unknown parameters. The analysis of the received effective length coefficients of inclined braces of bottom section of the intermediate support 1P330-1 and corner dead-end support U220-2+9, has been carried out. Solving the stability equation an attention was paid to the joint work of structural components of the OPTL support trunk. Based on the developed design procedure we received new regularities of definition the longitudinal bending coefficients of lattice steel supports that increase the load-carrying capacity indicators of steel structures of overhead power transmission lines.
Keywords: stability, numerical-analytical design procedure, effective length, longitudinal bending coefficient, tower support, overhead power transmission line.
Pages: 107-117.
For citation: Tanasoglo, A. V. Numerical-Analytical Design Procedure of Solution the Stability Problem of Spatial Lattice Structures. – Text : electronic. – In: Metal Constructions. – 2015. – Vol. 21, N 3. – Р. 107-117. – URL: https://donnasa.ru/publish_house/journals/mk/2015-3/01_tanasoglo.pdf (date of access: 23.11.2024). – ISSN 1993-3517.
Vol. 21, N 3 (2015)
Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture
Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture