Abstract
Today, increasingly more attention is given to reduction of the negative impacts of human activities on the surrounding environment during different stages of a building life cycle, which should be estimated during the design stage of the building. Selection of a structural system for a high-rise building remains a complex task that requires estimating a large amount of data such as structural system parameters, architectural solutions, engineering system requirements and construction process peculiarities. Decision-making problems in civil engineering often involve a complex decision-making process, in which multiple requirements and conditions have to be taken into consideration simultaneously. It means that such problems deal with sets of multiple criteria. The accuracy of performance measures in COPRAS (COmplex PRoportional ASsessment) method assumes direct and proportional dependence of the significance and utility degree of investigated alternatives on a system of criteria adequately describing the alternatives as well as on values and weights of the criteria. The research has concluded that the COPRAS-G method is appropriate for assessment of structural systems of high-rise buildings.
Highlights
Design of structural frames for high-rise buildings is one of the most complex design tasks in structural engineering
Materials selection using complex proportional assessment and evaluation of mixed data methods (Chatterjee et al 2011) Material selection using preferential ranking methods (Chatterjee, Chakraborty 2012) Evaluating the construction methods of cold-formed steel structures in reconstructing the areas damaged in natural crises, using the methods AHP and COPRAS-G (Bitarafan et al 2012) Owner preferences regarding renovation measures Á the demonstration of using multi-criteria decision-making (Medineckiene, Bjork 2011) Multiple criteria decision support system for assessment of projects managers in construction (Zavadskas et al 2012) Risk assessment of construction projects (Zavadskas et al 2010)
The research showed that the integration of expert judgment and COPRAS-G methods can be used by structural engineers during the design stage of a building to select the most efficient structural system, when initial data expressed in grey numbers
Summary
Design of structural frames for high-rise buildings is one of the most complex design tasks in structural engineering. The design of a structural system must result in an appropriate solution. It must correspond to the construction and demolition processes. It is important to calculate loads that impact on the structural system of a building, and estimate other factors, such as architectural solutions, engineering systems, construction process features and price. The design stage of a structural system often fails to apply various sustainable principles. Comparing the research results with sustainable design principles for selection of structural systems, this article investigates the effect of the existing sustainability requirements on structural systems of high-rise buildings and selection of materials. The decision-making process involves selection of the best alternative from several possible options. The selection is based on evaluation of relevant qualitative and quantitative criteria
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