Open AccessStrength, crack resistance and deformability of the power lines’ cylindrical supports
Author(s) -
V L Shchutsky,
Anastasiya Nasevich,
Mikhail Holodnyak,
Alik Blyagoz
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/913/3/032075
Subject(s) - reinforcement , materials science , composite material , power function , fracture toughness , toughness , structural engineering , linear relationship , mathematics , engineering , mathematical analysis , statistics
A numerical experiment was conducted to study the effect on the restrictions’ cylindrical supports design strength on the crack opening and ultimate strains’ width. The analysis of the effect on the cylindrical supports’ fracture toughness and deformability of the relationship between the prestressed and total reinforcement areas (Asp/As,tot). The research results showed that the dependence of the crack opening width on the ratio Asp/As,tot for all cylindrical racks types is close to linear. The reinforcement coefficient s, tot % does not affect the nature of this relationship. The increase in the torque proportion from the vertical loads Mv/M leads to a significant increase in the crack opening width. The greatest influence on the cylindrical racks’ deflections has the prestressed reinforcement content (Asp/As,tot). In this case, the total reinforcement coefficient practically does not affect the type of function fpr=f(Asp/As,tot).