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
RESEARCHING OF THE CONFORMANCE RATING FOR LOCOMOTIVE REPAIR PRODUCTION
The determination of the conformance rating of locomotive repair production is associated with the formalization of expert statements obtained during its survey. In the article the structure of the compliance indicator o...
PLANNING OF PASSENGER TRAIN DEPARTURE TAKING INTO ACCOUNT THE CONDITIONS AND STRUCTURE OF THE MARKET OF TRANSPORT SERVICES
Improving the competitiveness of rail transport in the field of passenger transport is possible by increasing the speed of movement of passenger transport and the quality of services provided. With the growth of mobility...
THE FEATURES OF DEFORMATION OF SHELL-TYPE STRUCTURES UNDER CONDITIONS OF DYNAMIC LOADING
The article is devoted to the large-velocity shell designs, the main supporting element of which is thin-walled cold-deformed arched metal profile, which is manufactured directly on the construction site. The peculiariti...
ANALYSIS OF ENERGY STORAGE IMPLEMENTATION ON THE METRO ROLLING STOCK
The application of various types of energy storages in the power supply system of metro is analyzed. The analysis of existing research determined that most prospects in the metro are electrochemical, inductive, capacitiv...
DETERMINATION OF THE OPTIMAL MAINTENANCE INTERVALS OF MINIMUM COST CONDITIONS
The article offered for complex technical railway, periodic maintenance required large economic costs, method of determining the optimal frequency of maintenance equipment with minimum cost. The calculation adopted by th...