A Version of the Failure Criterion Modification for Plane Concrete

2017 ◽  
Vol 755 ◽  
pp. 300-321 ◽  
Author(s):  
Volodymyr I. Korsun ◽  
Yu.Yu. Kalmykov ◽  
S.Yu. Makarenko
Keyword(s):  
Comparative Analysis ◽  
Solid Mechanics ◽  
Concrete Strength ◽  
Failure Criteria ◽  
Analytic Description ◽  
Deformable Solid ◽  
Theoretical Approaches ◽  
Concrete Failure ◽  
Stress States ◽  
Multiaxial Loadings

The paper is about the generally accepted in the deformable solid mechanics principles of constructing limiting surfaces of concrete strength in the principal stress space. The background and theoretical approaches taken by different researchers to describe the functions of deviatoric and meridional curves as the basic elements which determine the surface configuration of concrete strength were analyzed.There was carried out a comparative analysis of different authors’ suggestions on an analytic description of concrete strength for different stress states and a comparison of the developed criteria and the results of short-term tests of plane concrete under multiaxial loadings. Comparing the methods taken for developing the interpolation functions of deviatoric and meridional curves, it was inferred that the application of different approaches to the development of concrete failure criteria is effective. Keeping in mind the results of the comparative analysis of the prerequisites taken to develop the above failure criteria and the requirements of a better approximation of the experimental data, there are made new suggestions to describe concrete strength for the general case of stress state.

scholarly journals The Construction Features of Traditional Settlements in the Middle Area of Jiangxi Province Basing on the Analysis of Tangyin Town

2015 ◽  
Vol II-5/W3 ◽  
pp. 69-73
Author(s):  
J. J. Fu
Keyword(s):  
Economic Development ◽  
Comparative Analysis ◽  
Building Materials ◽  
Historical Data ◽  
The Other ◽  
Jiangxi Province ◽  
Systematic Examination ◽  
Social And Economic Development ◽  
Similarities And Differences ◽  
Gis Software

Based on general investigations and utilizing GIS software, missing historical data was hypothesized. From the perspectives of social and economic development, this paper tries to find the logic behind the formation and development of traditional settlements. Using systematic examination, the features of the town’s overall layout, courtyard shape and building materials appear. Applying comparative analysis, this paper indicated the similarities and differences between Tangyin town and the other areas of Jiangxi, and add them to the construction logic of the middle area in Jiangxi to make the following construction activities much in order.

Water Absorption Curves versus Gamma-Ray Attenuation Profiles: A Comparative Analysis of Hygric Permeance Results

2020 ◽  
Vol 400 ◽  
pp. 32-37
Author(s):  
A.S. Guimarães ◽  
I.M. Ribeiro ◽  
A.C. Azevedo ◽  
João M.P.Q. Delgado
Keyword(s):  
Comparative Analysis ◽  
Water Absorption ◽  
Building Materials ◽  
Gamma Ray ◽  
Moisture Transfer ◽  
Contact Interface ◽  
Perfect Contact ◽  
Gamma Ray Attenuation ◽  
Attenuation Profiles ◽  
Experimental Values

The knowledge of moisture transfer in multi-layered building materials and components using numerical simulations is fundamental to predict the behaviour of that building materials and components when in contact with moisture and to avoid some possible future pathology guarantying a correct performance.This paper describes a comparative analysis of experimental values of Hygric Permeance (HP) obtained by water absorption curves and gamma-ray attenuation profiles, for perfect contact interface.

Application of a multisurface discrete crack model for clear wood taking into account the inherent microstructural characteristics of wood cells

Holzforschung ◽  
2016 ◽  
Vol 70 (9) ◽  
pp. 845-853 ◽  
Author(s):  
Markus Lukacevic ◽  
Josef Füssl
Keyword(s):  
Building Materials ◽  
Load Capacity ◽  
Failure Mechanisms ◽  
Failure Criteria ◽  
Failure Behavior ◽  
Crack Model ◽  
Clear Wood ◽  
Discrete Crack ◽  
Splitting Test ◽  
Definition Of

Abstract A more accurate prediction of the mechanical behavior of wood is needed to increase its ability to compete with other building materials. Especially, when it comes to estimate failure loads, the lack of appropriate prediction tools becomes obvious. The present work contributes to this goal in two different ways: First, a damage concept for wood is revisited, which allows for transferring information about failure processes through different scales of observation. In this concept, the failure behavior of clear wood is linked to the different characteristic of earlywood and latewood layers in softwoods. This reduces the number of empirically determined strength parameters, while the definition of multisurface failure criteria is still possible. Secondly, it will be demonstrated that the combination of these models with discrete crack modeling based on the extended finite element method provides a numerical simulation tool capable to describe failure mechanisms more realistically than existing approaches. The results obtained by numerical calculations and experiments by means of a micro wedge splitting test show very good agreement, especially, if the load capacity and failure mechanisms are in focus. The presented approach shows a much better performance compared to linear elastic or elastoplastic simulations.

scholarly journals ENERGY-SAVING CHAMBER IN PRODUCTION OF BUILDING MATERIALS AND PRODUCTS

2021 ◽  
Vol 28 (1) ◽  
Author(s):  
Michael Zavoloka ◽  
◽  
Elena Shinkevich ◽  
Varvara Vinnichenko ◽  
Alexander Plit ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Comparative Analysis ◽  
Energy Saving ◽  
Building Materials ◽  
Structural Elements ◽  
Compressive Strength Of Concrete ◽  
Concrete Hardening

This paper presents the results of a study of the compressive strength of concrete in a cyclic solar chamber. The analysis of the existing types of industrial solar chambers is carried out and the main structural elements are considered. The method of calculating the solar chamber for the production of concrete products is presented. Experiments were carried out on heavy concrete compositions using MC-Bauchemie superplasticizers additives: MC-PowerFlow 3100 and MC-PowerFlow 2695. The samples were kept in a cyclical solar chamber. The strength of concrete was determined at different periods of concrete hardening. A comparative analysis of the results of the compressive strength of concrete in a solar and normal hardening chamber is carried out.

scholarly journals Development of cost-effective enclosing structures with high heat transfer resistance

2021 ◽  
Vol 258 ◽  
pp. 09040
Author(s):  
Alexandr Meneiliuk ◽  
Stanislav Kyryliuk ◽  
Larisa Cherepashchuk
Keyword(s):  
Heat Transfer ◽  
Comparative Analysis ◽  
Building Materials ◽  
Cost Effective ◽  
Weight Coefficient ◽  
High Heat ◽  
Final Decision ◽  
Transfer Resistance ◽  
High Heat Transfer ◽  
Design Solutions

Considered is the solution to the problem of choosing an economical option for the construction of low-rise buildings and the creation of new economical design solutions with high thermal performance. The well-known technologies of building construction are analyzed using qualitative, quantitative and comparative analysis. Quantitative indicators were selected, such as wall thickness, weight of 1 m2 of wall, resistance to heat transfer, area of premises, cost, durability, tendency to shrinkage. As qualitative indicators used: seasonality of the use of solutions, resistance to the formation of mold, decay and destruction, especially the delivery of building materials. The method of multi-criteria analysis was also applied to determine the most effective technology. Calculated the cost of various types of design solutions based on economic calculated simulations. The technological solutions were assessed by quantitative criteria on a ten-point scale, where the minimum and maximum values were assigned points 1 and 10, respectively. Graphic modeling of the compared construction options was carried out and the corresponding diagrams were built. Added “weight” coefficient of criteria for the final decision on the choice of the optimal technology for the construction of buildings. The most effective constructive solution was selected based on the results of a comparative analysis, taking into account the “weight” coefficient.

A Comparative Analysis on Materials and Resources in Green Assessment Tools for Various Countries

2016 ◽  
Vol 700 ◽  
pp. 256-265
Author(s):  
Nurul Akmam Naamandadin ◽  
Norhaizura Yahya ◽  
Abdul Razak Sapian
Keyword(s):  
Comparative Analysis ◽  
Building Materials ◽  
Green Building ◽  
Building Energy ◽  
Assessment Tools ◽  
Building Projects ◽  
Sustainable Building ◽  
Building Energy Conservation ◽  
Design Flexibility ◽  
Green Building Materials

The concept of sustainable building incorporates and integrates a variety of strategies during the design, construction and operation of building projects. The use of green building materials and products represents one important strategy in the design of a building. Green building materials offer specific benefits to the building owner and building occupants such as reducing maintenance/replacement costs over the life of the building, energy conservation, improving occupant health and productivity, and greater design flexibility. Thus, the aim of this paper is to identify the similarities and the differences for the selected green assessment tools which can be obtained stage by stage of the RIBA Outline Plan of Work 2013. The study had been carried out through a comparative analysis. The finding is predicted to help the construction industry practitioners to be able to understand the assessment criteria involved at every stages in the construction process concerning on material and recourses. Especially for those who are concerned on green building and to sustain our natural environment.

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