EXPERIMENTAL INVESTIGATIONS OF THE BEARING CAPACITY OF TWO-PASS’S NON-SEPARABLE REINFORCED CONCRETE BEAMS UNDER THE INFLUENCE OF LOW-CYCLIC REPETITIVE AND SIGN-LOADED LOADINGS
Journal Title: Збірник наукових праць Українського державного університету залізничного транспорту - Year 2018, Vol 175, Issue 9
Abstract
The results of tests of the bearing capacity of two-pass’s non-separable reinforced concrete beams under the influence of low-cyclic repetitive and sign-loaded loadings, in which features of change of reference reactions, bending moments and deformations of concrete and reinforcement are revealed. It is established that the process of changing these parameters is stabilized by 5-6 load cycles. The changes in the voltage of the deformed state of normal and inclined sections of experimental samples by the values of the indicated loads are also revealed and analyzed.Test results showed that there has been repeated cyclic alternating loadings and impact on the carrying capacity, reducing its straightforward compared to static loadings. The reasons of the bearing capacity’s reducing are determined by the concrete tension of both extended and compressed zones, as well as the formation of microcracks in concrete even at high loadings’ levels. Taking into account the specified features of changing the stress-strain state for the above-mentioned loadings will increase the reliability of reinforced concrete non-separable constructions during their operation.
Authors and Affiliations
Hryhoriy Masyuk, Olexandr Yushchuk, Sergyi Dzyubak
Keywords
Related Articles
- EP ID EP357180
- DOI 10.18664/1994-7852.175.2018.127172
- Views 46
- Downloads 0
EXPERIMENTAL DETERMINATION OF STIFFNESS OF STRIP REPLENI TRAP-N AND TRAP
The article presents the results of experimental studies of horstkorta gaskets fasteners types of TRAP-N and TRAP. These bonds differ from the common bonds of KB less consumption of materials and the lack of threaded con...
ANALYSIS OF THE MOVEMENT PROCESS OF BINGAM LIQUIDS ON ROUND PIPE RIBBONS
A description of the process of movement of Bingham liquids (concrete mixes) through pipelines of circular cross-section, using the Buckingham formula for determining the flow rate and speed, obtained dependences, which...
ESTIMATION OF COMPETITIVENESS OF SPEED MOBILE COMPOSITION OF UKRAINIAN PRODUCTION
In order to evaluate and make a decision on the choice of high-speed rolling stock (HRS) for Ukraine conditions, an assessment of the choice of the HRS was made using a qualitative calculation of the quality of the equip...
MODULE-DECOMPOSITION DESCRIPTION OF THE CONSTRUCTION OF RAILWAY TRACTIONDRIVERS
The analysis malfunctions of the main modules of the traction and motor-vehicle rolling stock components operated in the regional branch of "Southern Railway" PJSC "Ukrainian Railway" has been confirmed. It is noted that...
STUDY WORK OF THE ASYNCHRONOUS MOTOR AD-906U IN FIELD WEAKENING MODE
The article analyzes research of the work asynchronous motor AD-906U in the field weakening mode with vector control system on mathematical model in MATLAB software environment. A quantitative estimation of the deviation...