Finite element analysis of the stress and strain state of the node of the top belt of the steel and concrete composite cable space frame

The article presents a design and numerical research of a node connection of spatial modules of the steel and concrete composite cable space frame in top chord. As a result of the research, an effective and simple constructive solution of the node connection of the top belt elements of a new type of double-sided construction was created. The effectiveness of the node was established based on the results of the computer simulation the structure behavior under load for various boundary conditions by the finite element method, and based on the finite element analysis of the stress-strain state. The finite element analysis of the stress-strain state of the node connection for elements of the top belt of the steel and concrete composite cable space frame showed that its design does not have weak sections and places of concentration of considerable stresses. Modeling the behavior of the steel and concrete composite cable space frame under the action of the load showed reliable operation of the node connection. Thus, the node connection that was designed provides joint operation the constituent elements of the steel and concrete composite cable space frame, regardless of the way the external load is applied.

strain

сталезалізобетон

структура

ванта

деформація

напруження

модуль

вузол

composite steel and concrete

space structure

cable

module

node

Гасій Г. М. Скінченно-елементний аналіз НДС вузла з’єднання елементів верхнього пояса структурно-вантової сталезалізобетонної конструкції / Г. М. Гасій // Збірник наукових праць Українського державного університету залізничного транспорту. – Х. : УкрДУЗТ, 2017. – Вип. 171. – С. 69–76.