Abstract
During the use of buildings it becomes necessary to carry out repair works including modernisation. Deciding on the choice of repair solutions is a difficult and complex task. Building administrators have to consider both, the benefits of some repair works, and limitations due to the availability of funds. Selection of a repair solution, bearing in mind the above, requires a comprehensive approach that will allow assessment of the building condition and determining the repair scope required. The research conducted by the authors was aimed at developing a decision-making model and its computer-aided implementation, taking into account a number of operating demands. The system algorithm proposed comprises five stages including: building condition assessment, building use value evaluation, repair classification, multiple variants of repair and the choice of repair solutions. The article describes individual stages of the model in detail, giving numerical application examples of the method for repair solution choice for five multi-family houses.
Highlights
Residential building management requires to maintain the building in non-deteriorated condition and obliges the administrator to reasonably invest funds for repairs
In the literature other interesting decision making systems in building maintenance are presented, in which such tools as the Markov chains are applied to describe the risk occurrence of building elements failure or the optimalisation methods to the allocation of repair financial means, e.g. Lounis and Vanier (2000), Langevine et al (2006). Another example of the DSS and selection of alternative repair options is the Decision Support Model for Semi-Automated Selection of Renovation Alternatives proposed by Rosenfeld and Shohet (1999)
The calculations performed clearly prove that the highest increase of building use value of 21.06 points for the amount PLN 4,518,144 was achievable for the first example, i.e. the repair variants included in the repair solution were chosen from a set of all repair activities proposed for the buildings being analysed
Summary
Residential building management requires to maintain the building in non-deteriorated condition and obliges the administrator to reasonably invest funds for repairs (art. 185 par. 1 of the Real estate management law). 1 of the Real estate management law) Difficulties involved in this process are the main reason why vast experience and skills are required from the administrator while making repair-related decisions. This involves multiple criteria evaluation of the building condition. One of them is so called use value (Niezabitowska et al 2003; Orłowski, Szklennik 2011), defined as the building ability to satisfy its users’ demands This ability is assessed by a set of measurable features important for the use, i.e. technical, energy, visual and functional ones. This article presents the methods for choosing the repair solution meeting the above assumptions It includes five steps in which various calculation tools were used. The last step of the model is to show an optimum repair solution for buildings, considering the limitations of the repair funds available
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