Linearised CPM-COST model in the planning of construction projects
Autor
Radziszewska-Zielina, Elżbieta
Sroka, Bartłomiej
Opublikowane w
Procedia Engineering
Numeracja
Vol. 208
Strony
129-135
Data wydania
2017
Wydawca
Elsevier Ltd.
Język
angielski
ISSN
1877-7058
DOI
https://doi.org/10.1016/j.proeng.2017.11.030
Uwagi
2nd International Joint Conference on Innovative Solutions in Construction Engineering and Management: 16th Lithuanian-German-Polish colloquium and 6th meeting of EURO working group Operational Research in Sustainable Development and Civil Engineering 24 May- 2nd International Workshop on flexibility in sustainable construction, ORSDCE 2017, 24-26 April 2017, Poznan-Puszczykowo, Poland
Słowa kluczowe
CPM-COST,Time-Cost Optimisation, linearization, linear programming
Abstrakt
Due to the specific nature of construction projects, non-linear and discrete dependencies are seen as appropriate for the modelling of issues of time and cost. Approximation algorithms are usually used in order to precisely solve the problem of cost minimisation. In order to find a precise solution for non-linear dependencies, the authors propose their linearisation and the use of linear programming methods in order to determine the minimum cost of a project. The proposed linearised CPM-COST model has been formally written in the form of a linear programming problem. The model is helpful in determining the duration and deadlines of the performance of tasks under the conditions of a set directive deadline, with the objective of minimising total costs. Using a computer program written in the Python language, the authors have presented the model using a calculation example. The authors are currently working on improving the linearised model for non-linear time-cost dependencies and the development of a linearised model for discrete functions.
