Modeling of load distribution of steel structures of a cable-stayed transition when the efforts of the cable system are unbalanced

Abstract

Modeling of load distribution of steel structures of a cable-stayed transition when the efforts of the cable system are unbalanced

Muratov K.R., Sokolov R.A., Safargaliev R.F., Mamadaliev R.A.

Incoming article date: 22.10.2022

The paper considers the results of modeling the cable system of the above-water cable-stayed transition of the main gas pipeline using a laboratory installation and computer modeling using finite element methods. The main characteristics of materials and structural elements used to create a computer and laboratory model are given. Various modes of tension of the cable system affecting the further operation of the model under consideration, allowing to determine the service life of the object, are studied. It is shown that with a slight weakening of the tension of one of the cables, in the cable system, the occurrence of stresses in the pipe body is observed, the magnitude of which, under certain conditions, greatly exceeds the operating values. A small imbalance of effort leads to a redistribution of effort and a distortion of the entire structure, which, under cyclic loads, can lead to a premature exit from the standing of the object in question.

Keywords: cable-stayed transition, effort, stress-strain state, cable system, finite element method, model, load, force.