Chosen aspects of multi-criteria analysis applied to support the choice of materials for building structures

5th ModTech International Conference - Modern Technologies in Industrial Engineering

Szafranko, E.^1

University of Warmia and Mazury in Olsztyn, Faculty of Geodesy Geospatial and Civil Engineering, Institute of Building Engineering, ul. Heweliusza 4, Olsztyn

10-724, Poland^1

关键词: Building structure;    Graphical methods;    Hierarchical analysis;    Indicator methods;    Indirect effects;    Mathematical method;    Multi Criteria Analysis;    Weighting methods;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/227/1/012127/pdf
DOI  :  10.1088/1757-899X/227/1/012127

来源: IOP

【 摘 要 】

When planning a building structure, dilemmas arise as to what construction and material solutions are feasible. The decisions are not always obvious. A procedure for selecting the variant that will best satisfy the expectations of the investor and future users of a structure must be founded on mathematical methods. The following deserve special attention: the MCE methods, Hierarchical Analysis Methods and Weighting Methods. Another interesting solution, particularly useful when dealing with evaluations which take into account negative values, is the Indicator Method. MCE methods are relatively popular owing to the simplicity of the calculations and ease of the interpretation of the results. Having prepared the input data properly, they enable the user to compare them on the same level. In a situation where an analysis involves a large number of data, it is more convenient to divide them into groups according to main criteria and subcriteria. This option is provided by hierarchical analysis methods. They are based on ordered sets of criteria, which are evaluated in groups. In some cases, this approach yields the results that are superior and easier to read. If an analysis encompasses direct and indirect effects, an Indicator Method seems to be a justified choice for selecting the right solution. The Indicator Method is different in character and relies on weights and assessments of effects. It allows the user to evaluate effectively the analyzed variants. This article explains the methodology of conducting a multi-criteria analysis, showing its advantages and disadvantages. An example of calculations contained in the article shows what problems can be encountered when making an assessment of various solutions regarding building materials and structures. For comparison, an analysis based on graphical methods developed by the author was presented.