BEARING CAPACITY CALCULATION OF REINFORCED CONCRETE CRANE BEAMS UNDER BIAXIAL BENDING
Journal Title: Збірник наукових праць Українського державного університету залізничного транспорту - Year 2018, Vol 175, Issue 9
Abstract
The method of calculating the bearing capacity in the normal section of biaxial bended reinforced concrete T-section crane beams is developed. The problem of difficulty applying the deformation model in the study of biaxial deformed elements is successfully solved by the introduction of the rectangular stress distribution in a concrete compressed area and deformative criterion of strength. Analytical formulas are derived for the determination of all unknown parameters when calculating for biaxial bending: the neutral axis depth, the angle of inclination of the neutral axis, and the internal bending moment. The method is proposed for calculating beams with a trapezoidal shape of the concrete compressed area, taking into account all provisions of the effective normative documents and, unlike the existing ones, allows performing calculations without the use of numerical methods. The developed method of calculating provides the necessary accuracy of the calculations and can be implemented in the form of an engineering algorithm.
Authors and Affiliations
Olha Harkava, Bogdan Barilyak
ANALYSIS OF THE INFLUENCE OF AN ABSOLUTE ACCELERATION ON THE SPEED OF MOVEMENT OF PASSENGER TRAINS
Increasing the speed of traffic on existing lines with minimal costs is one of the main tasks that exist today on the Belarusian Railways. The nearest high-speed prospect is 160 km/h. Often the existing curves of small r...
SURFACE HARDENING OF POWDERED IRON-CARBON ALLOYS
There are many ways to improve the quality of iron-carbon alloys used as structural materials, one of which is surface heat treatment with highly concentrated energy streams. The effect of electron-beam heating on the st...
REFINEMENT OF DYNAMIC MODELS OF THE ROD SYSTEMS
The author considers the possibility of applying methods for reducing the dimensionality of dynamic models to rod systems with many degrees of freedom. The research object is the latticed tower. It should be noted that t...
MOBILE TECHNOLOGY OF TECHNICAL SERVICE OF MANEUVAL HEAT CARRIERS
Technical service TS-2 mobile diesel engines conducted in large points (STS) which are equipped a necessary equipment and improved skilled locksmiths. Technical service TS-2 mobile diesel engines which work on the remote...
GEOINFORMATION OF INTEGRATED ASSESSMENT OF SPATIAL FACTORS OF LAND OF MEGAPOLIS
We present the directions of the definition of geoinformation support for an integrated assessment of the spatial factors of land in a megacity. Systematized theoretical provisions for the definition of geoinformation su...