بررسي و به كارگيري تكنيك‌هاي مدلسازي اطلاعات ساخت در مديريت تعمير و نگهداري سوزن‌ها

Study an‎d Application of Built Information Modeling Techniques in Maintenance Management of Turnouts

مهندسي راه آهن و برنامه ريزي حمل و نقل

Abstract The operation an‎d profitability of a railway system in any country depends on the quality of the railways of that country. In order to achieve the desired quality in railway systems an‎d to keep this quality constant, it is necessary to implement a formal an‎d regular program/planing for required maintenances an‎d repairs. To achieve this planning, an efficient management is required. The results of past studies show that all common maintenance an‎d repair systems in the world have a database for recording, retrieving an‎d regular monitoring of data. The lack of access to the data history of the parts, the repairs performed an‎d the work process in the repair an‎d maintenance system, makes its efficiency very limited. The absence of proper management, increases the possibility of error, followed by an increase in costs, time, an‎d occurrence of accidents. For correct an‎d efficient management, it is necessary to have a proper view of the various components of the railway structure an‎d its past history of repairs. In this thesis, the optimization of railway turnout maintenance management, under modeling based on BIM (Building Information Modeling) has been discussed an‎d a visual software is desinged to fulfil the management planing pruposed here. The purpose of this research is to provide a database in the form of a visual model under this software, that can be used to improve maintenance management so that, the quality of railway turnout will be kept in the best condition, leading to a signification reduction in costs. In order to achieve this goal, the current state of railway turnout maintenance management is examined an‎d its strengths an‎d weaknesses are identified. Then, in accordance with the current weaknesses, goals are set to improve the management of maintenance an‎d repair of railway turnout, an‎d according to the goals achieved, BIM-based turnout maintenance management software is developed an‎d validated to prove its practical effectiveness. Finally, the benefits of using the developed software are examined under the indicies of data registration an‎d accessibility. The variations in the error rate an‎d cost, an‎d the continuous improvement of the maintenance management are examined. The results show a 30% increase in repairs based on priority, a 34% reduction in repair errors, a 10% reduction in costs due to maintenance errors, an‎d a 5% reduction in costs due to repetitive repairs, indicating the ability of this proposed maintenance management software to monitor an‎d manage the maintenance process. Keywords: Building information modeling, Turnout maintenance management, railway turnout defects, maintenance management software, BIM

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