Regressive analysis of steel polygonal poles’ stress-strain state

Structural mechanics

Influence level of basic structural dates variability separately standing steel polygonal poles to their stress-strain state that gives chance realizations of careful entering and current control of material at structural manufacturing is established in this paper. As the necessary parameters are accepted the pole’s wall thicknesstp ± Δt, the bottom pole’s diameter db ± Δd and telescopic junction overlap of the pole’s sections hNp± Δh. Regression equations for stress-strain state steel pole with ten facets are obtained.Recommendations for manufacturers which consist in obligatory performance entering control of minus tolerance steel sheet thickness are offered ((-Δt = 5 % from nominal t) irrespective of geometrical poles parameters and current control of their bottom diameters (- Δd = 5 ... 10 mm) at manufacturing stage).