NUMERICAL MODELING OF CONCRETE FILLED TUBULAR COLUMNS WITH SEPARABLE JOINTS BY FINITE ELEMENT METHOD
Journal Title: Збірник наукових праць Українського державного університету залізничного транспорту - Year 2017, Vol 172, Issue 6
Abstract
This paper deals with results of numerical modeling of concrete filled tubular samples with separable flange joint, with separable joints made with the help of longitudinal ribs and steel couplings as well as samples without joints. For all investigated samples that were previously tested experimentally, identical real mathematical models were created for which with the help of numerical simulation in the software complex Femap, the stress-strain state was investigated and graphic representations of the main stresses were presented. The stresses in the compressed and stretched zone of the concrete filled tubular element were compared in accordance with the experimental data and, consequently, the results of numerical simulation. The mean square deviation and the coefficient of variation of the data obtained varied within the range of 5-7%, which is admissible and suggests that the modeling results correspond to the experiment.
Authors and Affiliations
Pavlo Semko
STRAIN-STRESS STATE OF ARCHITECTURAL-COMPOSITE COMPLEX IN THE FORM OF MOBIUS STRIP
In this paper, a numerical study of the strain-stress state of a complex architectural and composite structure in the form of a Mobius strip, made of heavy structural concrete with polystyrene void formers, was carried o...
THE CHOICE OF HEAT EXCHANGERS FOR THE VENTILATION SYSTEM OF BUILDINGS
The article deals with the problems of calculation and selection of recuperators, which are installed in the ventilation system of buildings of public catering establishments. In article razganata problem rozrahunkiv wyb...
METHODOLOGY OF EXPERIMENTAL INVESTIGATIONS OF TUBULAR RODS ON STABILITY WITH REGULATION OF RESIDUAL TENSIVE STATE
The capacity of any construction is determined not only the requirements of durability but also requirements of stability of its separate elements. At the loss of stability of the separate welded element, normal work of...
NUMERICAL INVESTIGATIONS OF DYNAMIC TRANSVERSE FORCES IN CURVES, IN THE ZONES OF RAILS VARIETIES
The purpose of the work is to identify, by numerical methods, the causes of intensive lateral wear of rails and other bounces of the track in curves of small radius. The research has been carried out for the most mass ty...
RESEARCH OF SURFACES OF RESPONSE OF INDEXES OF DURABILITY OF THE HAULING GEARING WITH THE DIFFERENT DEGREES OF WEAR OF PROFILES OF POINTS
The urgency of developments aimed at further improvement of repair technologies for traction gears of railway rolling stock is substantiated. As one of the promising areas of such works, studies have been made of the cha...