ENHANCEMENT OF THE REINFORCED CONCRETE PLAIN STRUCTURES DESIGN METHODS WITH THE TAKING INTO CONSIDERATION THE TRUE PROPERTIES OF HIGH PERFORMANCE CONCRETES
Journal Title: International Journal for Computational Civil and Structural Engineering - Year 2018, Vol 14, Issue 2
Abstract
The enhancement of the reinforced concrete plain structures design methods on the basis of the deformation theory of the plasticity of reinforced concrete with cracks by N.I. Karpenko is considered. The deformation model of reinforced concrete with cracks taking into account the deformation diagrams of concrete and reinforcement is used for numerical analysis of a deep beam made of high-strength concrete of class B100. The analysis makes it possible to conclude that taking into account the actual properties of materials significantly improves the accuracy of computer modeling. The strength of concrete is the decisive factor determining the mechanism of structural failure and the efficiency of using reinforcement. At the design stage, the most reliable and accurate tool for assessing the operational fitness of planar reinforced concrete structures is computer modeling based on a nonlinear deformation model, taking into account the actual strength and deformation properties of concrete and reinforcement
Authors and Affiliations
Nikolay I. Karpenko, Sergey N. Karpenko, Alexey N. Petrov
МОДЕЛИРОВАНИЕ АЭРОДИНАМИЧЕСКОЙ НЕУСТОЙЧИВОСТИ СТРОИТЕЛЬНЫХ КОНСТРУКЦИЙ НА ПРИМЕРЕ СЕЧЕНИЯ МОСТА ЧАСТЬ 1: ОЦЕНКА АЭРОДИНАМИЧЕСКОЙ НЕУСТОЙЧИВОСТИ СЕЧЕНИЯ ИНЖЕНЕРНЫМИ МЕТОДАМИ
Данная статья посвящена оценке аэродинамической неустойчивости мостовых конструкций. В ходе численного моделирования были получены аэродинамические характеристики, которые были использованы для оценки аэродинамической не...
CONSTRUCTION OF DEFORMATION DIAGRAMS OF CONCRETE UNDER SHEAR BASED ON THE AUTHOR'S THEORY OF ANISOTROPIC MATERIALS POWER RESISTANCE TO COMPRESSION AND DEFORMATION THEORY OF PLASTICITY
The Aim of this work was the construction of a concrete deformation diagrams under shear on the basis of two approaches: the theory of anisotropic materials force resistance in compression and deformation theory of plast...
LIRA-SAPR PROGRAM FOR GENERATING DESIGN MODELS OF RECONSTRUCTED BUILDINGS
The paper deals with technique of simulation for buildings at maintenance stage with account of changes in structural model during reconstruction. The authours suggest algorithm for linear and nonlinear analysis of struc...
РАСЧЕТ ДОЛГОВРЕМЕННОЙ ФИЛЬТРАЦИИ В ПОРИСТОЙ СРЕДЕ
Рассматривается задача фильтрации в пористой среде – важная составная часть подземной гидромеханики. Задачи фильтрации суспензий и коллоидов описывают процессы укрепления грунта и создания водонепроницаемых стен в грунте...
MATHEMATICAL MODELING OF DIFFUSION PROCESSES OF MASS TRANSFER OF «FREE CALCIUM HYDROXIDE» DURING CORROSION OF CEMENT CONCRETES
The paper presents a mathematical model of mass transfer in the processes of corrosion of the first type of cement concrete at the level of phenomenological equations for a closed reservoir-liquid system. A step-by-step...