scholarly journals Non-Linear Analysis of an RC Beam Without Shear Reinforcement with a Sensitivity Study of the Material Properties of Concrete

2020 ◽  
Vol 28 (1) ◽  
pp. 33-43 ◽  
Author(s):  
Oldrich Sucharda ◽  
Pavlina Mateckova ◽  
Vlastimil Bilek
Keyword(s):  
Detailed Analysis ◽  
Laboratory Tests ◽  
Load Capacity ◽  
Stochastic Modelling ◽  
Reinforced Concrete Beam ◽  
Sensitivity Study ◽  
Linear Analysis ◽  
Shear Reinforcement ◽  
General Behaviour ◽  
Non Linear

AbstractA detailed analysis of concrete structures requires knowledge of the mechanical properties of the materials used. In the case of a non-linear analysis, the scope of the information needed is even greater. In particular, the tensile strength and fracture-mechanical parameters are required for the concrete. Prospective approaches that could increase the informative value of detailed analyses include the use of stochastic modelling. It particularly enables the definition of the effects of individual input parameters on the load capacity, failure mode, and general behaviour of the structure. The presented paper aims at a detailed analysis of a reinforced-concrete beam without shear reinforcement, which is based on a complex set of laboratory tests and non-linear analyses with a sensitivity study. The laboratory program includes different types of laboratory tests. Selected and missing material parameters of the concrete are calculated according to recommendations in scientific papers and the valid standards. The results are compared and discussed.

Modelling and Analysis of Reinforced Concrete Beams

2015 ◽  
Vol 662 ◽  
pp. 81-84 ◽  
Author(s):  
Oldrich Sucharda ◽  
Jan Kubosek
Keyword(s):  
Reinforced Concrete ◽  
Finite Elements ◽  
Concrete Beams ◽  
Load Capacity ◽  
Linear Analysis ◽  
Reinforced Concrete Beams ◽  
Total Load ◽  
Concrete Properties ◽  
Non Linear ◽  
Standard Tests

The goal of the paper is to model and evaluate the total load capacity of the reinforced concrete beams. A non-linear analysis and finite element method were used for that purpose. The model consists of 3D finite elements. The constitutive model of concrete for the non-linear analysis is based on a fracture-plastic theory. The input parameters are the data obtained in previous tests which included both standard tests and additional tests of the testing bodies. There is no shear reinforcement in the beams. The non-linear calculations were carried out for several variants. The study takes into considerations the influence of concrete properties as well as the size of the finite elements.

Behavior of the Experimental Flat Slab Specimen Supported by an Elongated Column

2021 ◽  
Vol 322 ◽  
pp. 87-93
Author(s):  
Ľudmila Kormosova ◽  
Jaroslav Halvonik
Keyword(s):  
Linear Analysis ◽  
Test Results ◽  
Shear Reinforcement ◽  
Design Models ◽  
Flat Slab ◽  
Non Linear ◽  
Safe Side

The paper deals with the results of a loading an isolated fragment of flat slab specimen with two openings located close to the column. Slab specimen was supported by an elongated column and was without shear reinforcement. The accuracy of the relevant design models for prediction punching resistance was tested with obtained test results. All design models provided punching capacity on the safe side. The best accuracy has been achieved by non-linear analysis that was carried out with Atena software.

Determination of Concrete Cube Strength from Used Samples / Určení Krychelné Pevnosti Betonu U Použitých Zkušebních Trámců

2012 ◽  
Vol 12 (2) ◽  
pp. 186-194 ◽  
Author(s):  
Oldřich Sucharda ◽  
David Mikolášek ◽  
Jiří Brožovský
Keyword(s):  
Compressive Strength ◽  
Concrete Beams ◽  
Linear Analysis ◽  
Bending Tests ◽  
Cube Strength ◽  
Non Linear ◽  
Compressive Strength Of Concrete ◽  
Concrete Cube

Abstract This paper deals with the determination of compressive strength of concrete. Cubes, cylinders and re-used test beams were tested. The concrete beams were first subjected to three-point or fourpoint bending tests and then used for determination of the compressive strength of concrete. Some concrete beams were reinforced, while others had no reinforcement. Accuracy of the experiments and calculations was verified in a non-linear analysis.

scholarly journals A non-linear analysis of running in the heavy and severe intensity domains

2021 ◽  
Author(s):  
Ben Hunter ◽  
Andrew Greenhalgh ◽  
Bettina Karsten ◽  
Mark Burnley ◽  
Daniel Muniz-Pumares
Keyword(s):  
Linear Analysis ◽  
Severe Intensity ◽  
Non Linear

The spatial dimension of the French private rental markets: Evidence from microgeographic data in 2015

2020 ◽  
pp. 239980832097787
Author(s):  
Kassoum Ayouba ◽  
Marie-Laure Breuillé ◽  
Camille Grivault ◽  
Julie Le Gallo
Keyword(s):  
Spatial Heterogeneity ◽  
Detailed Analysis ◽  
Spatial Dimension ◽  
Median Income ◽  
Hedonic Prices ◽  
Rental Market ◽  
Housing Characteristics ◽  
Heterogeneous Effects ◽  
Non Linear ◽  
Rental Markets

This article draws on data collected by local rental observatories in 12 French urban units in 2015 to analyze the spatial dimension of hedonic rental prices in the private rental market through (i) the spatial heterogeneity between urban units and (ii) the wide variety of contextual and locational characteristics (socio-economic, environmental (dis)amenity, and accessibility) and flexible specifications to capture their potential non-linear influence on rent. Based on a joint test of equality of coefficients across all urban units, we find that hedonic prices differ for 75% of the characteristics, thereby justifying a detailed analysis of heterogeneity. Lyon, Nice, and Paris taken individually are the urban units with the most specific valuations of housing characteristics and socio-economic characteristics. Our analysis reveals that housing characteristics, median income, and distance to the center are clearly the variables with the most heterogeneous effects on hedonic prices.

Sign in / Sign up

Export Citation Format

Share Document