FIELD: electricity.
SUBSTANCE: method for creation of anchor section, comprising two end supports, at least one intermediate support, tensioning section of conductor, having two subsections, the first of which has, in which values of coefficient of thermal expansion, density, dependence of stress-deformation and area at the temperature in the range of values from 20°C to 75°C differ between each other, so that as electric current increases in tensioning section, tension of conductor of the second subsection is higher compared to tension of the second subsection. The first and second ends of tension section of conductor are connected to the first and second end supports accordingly, and at least part of subsequent subsections of tension section of conductor is supported by intermediate support. The first subsequent subsection of tension section of conductor comprises composite core. The second serial section of conductor has steel core.
EFFECT: reduced sagging of span with preservation of available permissible load by current.
19 cl, 4 dwg, 7 tbl
