Features of reinforced concrete beams stress strain state, damaged under load
Journal Title: Вісник Одеської державної академії будівництва та архітектури - Year 2017, Vol 1, Issue 69
Abstract
The results of experimental research of reinforced concrete beams deformability with damage in tensile reinforcement, at different load levels are presented in this article. The purpose of this study is to investigate the change of the stress-strain state in reinforced concrete beams, with damages performed at different levels of initial loading. According to the investigation program, ten prototypes were tested: four – control and six ‒ damaged. Damage was made locally, drilling a hole step-by-step in the tensile reinforcement. The specimens were damaged at loading levels of 0.3, 0.5 and 0.7 from the carrying capacity of the control prototypes. According to the obtained data, graphs of deformations distribution in the central section are constructed: for compressed concrete, tensile reinforcement and for central cross section by the height. It was found out that the bearing capacity in the control samples is exhausted with the limiting deformations of the compressed concrete zone, and in the damaged specimens – with the limiting deformations of the tensile reinforcement.
Authors and Affiliations
Z. Z. , Blikharskyy, P. I. , Vehera, T. M. , Shnal
Keywords
Related Articles
- EP ID EP327303
- DOI -
- Views 96
- Downloads 0
Harmonization of the 5-th degree polynomial to describe the concrete «stress – strain» diagram
Recently, to assess the bearing capacity of bending concrete elements the nonlinear deformation model is widely used which more accurately reflects their behavior at the stage of destruction. With its implementation in t...
Determination of climatic loads by meteorological data during verification calculations of load-bearing structures
The characteristic values of climatic loads in the design point are determined with considering of the data of the nearest meteorological stations. The possibility of combining of the annual maxima samples, statistical c...
Modern design approach to the shelters of civil protection structures
The problem of shelters arrangement possibility in urban modern building conditions due to the increased probability of different explosive attacks nowadays is considered in the paper. Providing the population with shelt...
Features of reinforced concrete beams stress strain state, damaged under load
The results of experimental research of reinforced concrete beams deformability with damage in tensile reinforcement, at different load levels are presented in this article. The purpose of this study is to investigate th...
Analysis thermomechanical processes in asphalt road layers
The existing practice of design calculation of road pavements demands improvement in methods of temperature change forecasting in each layer considering the actual thermophysical characteristics of materials, and improve...