Influence of concrete technological damage at the moments of reinforced concrete beams cracking
Journal Title: Вісник Одеської державної академії будівництва та архітектури - Year 2017, Vol 1, Issue 67
Abstract
The aspects of managing the processes of composite building materials structure arrangement (CBM) including at different levels of heterogeneity are studied and are associated with changes in the qualitative and quantitative compositions of the cementing material. Scientists who previously dealt with the investigated issue are represented. The research task is defined, and it consists in the fact that it is necessary to determine the influence of structural factors on the change of the moments of bent reinforced concrete elements crack growth along normal sections. The factors were determined: the dispersion and the amount of filler. The physical meaning is revealed, it consists in estimating the specific length of surface cracks, manifested on a unit both in surface and in length. In determining the coefficients of technological damage of the beams, two lines were drawn on two sides of the beam: three vertical ones in the zone of simple bending, four inclined in the zone of joint action of the bending moment and transverse force- four inclined. The results of experimental and theoretical studies of the structural factors effect (the amount and disparity of the mineral dust) on the change of the moments of bent reinforced concrete elements crack growth along normal sections are presented. The analysis of technological damage influence on the moments of experimental beams fracture was carried out, and the regularity of the quantitative evaluation of technological damage was determined. The technique for determining the evaluation of technological damage is discovered. The diagrams of the dependence of the crack growth moments from the variable factors are constructed.
Authors and Affiliations
N. V. , Oliinyk, I. , Bichev, L. , Lukashenko
Keywords
Related Articles
- EP ID EP322946
- DOI -
- Views 120
- Downloads 0
Investigation of the processes of interaction of free jets of loose materials and air flows
The article is devoted to the study of the processes of interaction of free jets of loose materials and air flows, in order to determine the kinematic patterns of the connection of air masses to the material flows of ma...
Integral and differential relations for internal power factors in the bending of the bar with a curved flat axis of an arbitrary shape
The work is dedicated to the theoretical study of internal power factors in a curved bar with a flat axis of an arbitrary shape, that is in a plane bending condition by a surface load of an arbitrary type. The natural cu...
Electron microscopic study of the soil-containing material structure with waste usage
The waste amount decreasing is an actual problem for the modern society. The waste products are accumulated around big cities or enterprises and create a zone of the economic and social discomfort. One of the ways of thi...
Influence of snow loading character on optimal lattice`s geometric shape of the combined arch system
In the article, the authors investigate the question of determining of the lattice made from flexible elements geometric share in a combined arch system proceeding from the condition of its operability and the minimum of...
Urban agglomerations: legislative initiative proposition
The article is devoted to the definition of "urban agglomeration" and distinguishing it from close in essence concepts in the light of the urbanization general trend and the creation of new municipal facilities, which ne...