Innovative Optimization Model for Planning Upgrade and Maintenance Interventions for Buildings
Publication: Journal of Performance of Constructed Facilities
Volume 36, Issue 6
Abstract
Building operation and maintenance costs are reported to be the longest and most costly phase of a building’s life cycle, where it exceeds costs of design and construction. Although buildings are regularly maintained, water- and energy-saving investments are not often analyzed. This paper presents the development of a novel model for optimizing the selection of upgrade and maintenance interventions for existing buildings to minimize their equivalent annual operation and maintenance cost (EAOMC) while complying with specified annual budgets and building operational performance. The optimization model is developed in three main phases that focus on (1) identifying model decision variables and formulating objective function and constraints; (2) implementing the model computations using binary linear programming; and (3) analyzing the performance of the optimization model using a case study. The primary contributions this research adds to the body of knowledge are (1) a new computationally efficient model for identifying optimal selection of building upgrade and maintenance interventions to minimize EAOMC; (2) modeling reactive, preventive, and predictive maintenance strategies based on component types; (3) integrating a simulation-based upgrade and maintenance approach to evaluate energy and water consumption of buildings; and (4) integrating maintenance and upgrade interventions to maximize economic benefits from building operation by reducing operational and maintenance costs. The results of the case study illustrated the new capabilities of the model in identifying optimal upgrade and maintenance interventions for various operational budgets with up to 32% reduction in EAOMC.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
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Published In
Journal of Performance of Constructed Facilities
Volume 36 • Issue 6 • December 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Aug 20, 2021
Accepted: May 23, 2022
Published online: Aug 29, 2022
Published in print: Dec 1, 2022
Discussion open until: Jan 29, 2023
ASCE Technical Topics:
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- Benefit cost ratios
- Building design
- Building management
- Buildings
- Business management
- Case studies
- Computer models
- Construction costs
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- Engineering fundamentals
- Financial management
- Maintenance and operation
- Methodology (by type)
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- Optimization models
- Practice and Profession
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