REINFORCED CONCRETE POST WITHOUT FORMWORK FOR POWER LINE POLES WITH A VOLTAGE OF 0.4 - 10 kV
Zulaykho Shamansurova, Pulat Mirzaev
When using the technology of mold residues for the production of reinforced concrete structures, industrial construction can be carried out in accordance with the requirements of modern regulations. This allows projects to be developed individually, and production can be readjusted in a short time in accordance with emerging needs. In this regard, the possibility of using reinforced concrete racks produced by the technology of stand-off form work for high-voltage lines is being considered. The goal is to develop a design of pre stressed stands for stand-off formwork on a standard basis of the product range for overhead line supports with a voltage of 0.4 ... 10 kV. This base consists of 16 brands of racks, 11 metal forms are used for their manufacture. The problem of establishing the minimum number (two) of cross-sections with different geometric dimensions for all brands of the offered racks has been solved, subject to the operational requirements and technological conditions of production. The proposed racks are reinforced only with high-strength wire reinforcement of the Br1400 class with a diameter of 5 mm (limitation of the technology of stand-off formwork molding), therefore, during their operation, the formation of cracks in the stretched zone is not provided. Qualitative features of racks for overhead transmission lines: low material consumption, versatility, manufacturability, innovation, which lies in the fact that their implementation is associated with the design, manufacture and testing of experimental products for use by specific consumers, i.e. commercialization.
Keywords: post, form-less forming, cross-sectional configuration, tensile wire reinforcement, strength, fracture toughness.
Journal Name :
EPRA International Journal of Multidisciplinary Research (IJMR)
Published on : 2021-10-01