Open AccessEXPERIMENTAL RESEARCH OF A HINGE UNIT OF STEEL SPATIAL GRID FRAMINGS
Author(s) -
S.I. Alekseev,
Sergey Alekseev,
Надежда Царитова,
Надежда Царитова,
Нина Бузало,
Нина Бузало,
И. Б. Петров,
И. Б. Петров
Publication year - 2014
Publication title -
stroitelʹstvo i arhitektura
Language(s) - English
Resource type - Journals
eISSN - 2500-1477
pISSN - 2308-0191
DOI - 10.12737/5968
Subject(s) - hinge , gost (hash function) , structural engineering , grid , deformation (meteorology) , plastic hinge , point (geometry) , engineering , mechanical engineering , computer science , materials science , mathematics , geometry , composite material , computer security
The authors carried out a research of the stress - strain state of the hinge unit of light spatial grid framings of regular structure. The solid model of the hinge unit was created previously and numerical simulation was performed. Calculation identified, that the weak point of the hinge unit is connecting disk. Plastic deformation can arise in the disk during loading. The experimental research was required for verification of results of a pilot study. The test of disk was executed with application of a specially designed installation on universal tensile testing machine in the laboratory of the University. Mechanical characteristics of steel, from which the disk was made, were identified by a certified laboratory destructive control methods in accordance with the GOST. The experimental results are compared with the simulation results. The authors give recommendations for optimizing the design of the hinge unit.