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Registration Number

0215U000445, 0113U000054 , R & D reports

Title

The Durability of Thin-Walled Reinforced Concrete Structures

Head

Dorofyeyev Vitaliy Stepanovich,

Registration Date

24-02-2015

Organization

The Odessa State Akademy of Building and Architecture

Description

The object of study - reinforced concrete shell coating. The goal of investigation - the maximum approximation the theory calculation of reinforced concrete shells coatings to their actual work by taking into account new scientific advances in the study of structural materials and their behavior in power and non-power effects. Methods of research - analysis of the literature and our own data, the use of mathematical apparatus of modern computer methods. The authors have developed a method of calculation of reinforced concrete shells with defects in shape during construction, as well as damages, which were obtained during the operation, in the general case of anisotropy and complex stress state. The behavior of the impact of the specific properties of concrete in the calculation of shallow shells with the middle surface imperfections was investigated. Defects found unfavorable shape of the shell, which permitted the construction, as well as their impact on the continued operation of the structure and the possible occurrence of cracks under the influence of the load and the environment were found. The mathematical model of behavior of reinforced concrete thin walls that are under plane stress state under the influence of aggressive environment have gotten. The method of calculation of reinforced concrete shell of zero Gaussian curvature, based on the idea of a generalized model of deformation of the shell as a set of models: the structural element; load models; model of the joint effect of carbonation and aggressive media; deformation model based concrete carbonation and destructive effects of corrosion have developed. The results of research can be used in the design of structures with a coating of reinforced concrete shells, with the development of software for the construction industry and benefits from the state building codes for the design of reinforced concrete structures. Projected assumptions about the object of research - the account of the recommendations (developed in the selected range) will extend the service life of reinforced concrete shells nonlinearly deformed surfaces.5481

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Дегтярева Ольга Анатоліївна
Коломійчук Григорій Петрович