Development Of Maintenance Prioritization Guideline For Historical Public Institution Buildings In Addis Ababa

This research deals with preparation of maintenance guidelines that enables thernprioritization of one historical building over the other. It also deals with identifying thernoptimal maintenance type appropriate for historical buildings of public institutions inrnAddis Ababa. The objectives of the research were to prepare maintenance inspectionrnchecklist, to inspect and evaluate the maintenance condition of selected buildings andrnto develop maintenance optimization model for one of the inspected historicalrnbuildings, i.e., Menelik II School.rnDifferent literatures were reviewed to prepare the inspection checklist and understandrntrends of developed countries to record maintenance condition of buildings. Visualrninspections in conjunction with the developed condition inspection checklist were usedrnto evaluate the maintenance condition of eight historical buildings of publicrninstitutions. The research found that six out of the eight selected historical buildingsrnwere under „moderate‟ maintenance condition while the rest two buildings are inrn„good‟ condition.rnMoreover, the best possible maintenance decision was identified for one of thernselected historical buildings, namely, Menelik II School. The maintenance decisionrnwas chosen by developing Markov decision process through prescribing appropriaternmaintenance alternatives along with their detailed engineering cost estimates and byrnestimating deterioration probabilities from Monte Carlo simulations for the differentrnmaintenance decision alternatives. Linear programming was formulated for therndecision process to get the optimal maintenance alternative at different conditions ofrnthe historical building under budget and time constraints.rnThe maintenance decision model, developed for Menelik II School, suggested to „donothing‟rnrnwhen a building component is found in an excellent state; to do activitiesrnprescribed under „preventive maintenance‟ for building components that are foundrnunder good maintenance condition; to execute specified items of work for „repairingrndefects‟ and „preventive maintenance‟ when building components are classified underrnmoderate condition. rnLastly, the decision model recommends to „replace building components‟ based on therndeveloped specification for building components that are in „poor and failed condition.

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