Static calculation of the bearing capacity of a two-pole membrane-rod system taking into account the air-bearing effect using the numerical Euler-Cauchy procedure

• Published in: Vestnik Dagestanskogo gosudarstvennogo tehničeskogo universiteta. Tehničeskie nauki (Online) Vol. 48; no. 4; pp. 159 - 170
• Main Authors: Kim, A. Yu, Amoyan, M. F., Khapilin, V. E.
• Format: Journal Article
• Language: English; Russian
• Published: Dagestan State Technical University 11.02.2022
• Subjects: большепролетная мембранно-стержневая система; воздухоопорный эффект; двухпоясные мембранно-стержневые системы; несущая способность; численная процедура эйлера – коши
• ISSN: 2073-6185; 2542-095X
• DOI: 10.21822/2073-6185-2021-48-4-159-170

Objective. The purpose of this study is to create a light, sufficiently rigid bearing coating, which can be strengthened by the air-supporting effect during overloads during force majeure. These structures can be erected in a very short time, both in combat conditions and during natural disasters. Method. The study was carried out in the software package "Program for calculating membrane-pneumatic structures by the step method using the numerical Euler-Cauchy procedure" according to the method of static calculation of membrane-pneumatic systems, taking into account non-linear factors. Result. A method for calculating air-supported double-belt membrane-rod systems for covering large spans by the iterative method of parameter increments using FEM and the Euler-Cauchy numerical procedure of the third order of accuracy has been developed. Conclusion. In design practice, the effect of strengthening the coating due to the air-supporting effect can approximately be taken equal to three. The use of the air-supported effect makes it possible to save significant funds, sometimes reaching up to 25% of the estimated cost of the structure due to the use of structural elements of a smaller section.