Machine Learning Framework for the Sustainable Maintenance of Building Facilities

The importance of sustainable building maintenance is growing as part of the Sustainable Building concept. The integration and implementation of new technologies such as the Internet of Things (IoT), smart sensors, and information and communication technology (ICT) into building facilities generate a large amount of data that will be utilized to better manage the sustainable building maintenance and staff. Anomaly prediction models assist facility managers in informing operators to perform scheduled maintenance and visualizing predicted facility anomalies on building information models (BIM). This study proposes a Machine Learning (ML) anomaly prediction model for sustainable building facility maintenance using an IoT sensor network and a BIM model. The suggested framework shows the data management technique of the anomaly prediction model in the 3D building model. The case study demonstrated the framework’s competence to predict anomalies in the heating ventilation air conditioning (HVAC) system. Furthermore, data collected from various simulated conditions of the building facilities was utilized to monitor and forecast anomalies in the 3D model of the fan coil. The faults were then predicted using a classification model, and the results of the models are introduced. Finally, the IoT data from the building facility and the predicted values of the ML models are visualized in the building facility’s BIM model and the real-time monitoring dashboard, respectively.

Application of Rasch Measurement Model in Establishing Roles Hierarchy for Malaysian Building Surveying Graduates

Despite the rising demand for the building surveying services in the current market, the function of this profession is generally still misunderstood. Hence, this paper attempts to identify the hierarchy and potential roles that can be offered by building surveying graduates in order to provide the acceptable roles in the Malaysian construction industry. A quantitative research approach has been adopted to achieve this study’s objective with close-ended questionnaires have been developed and administered to 136 professional building surveyors who are registered with the Building Surveying Division, Royal Institution of Surveyor Malaysia. The retrieved data were analysed using the IBM SPSS Statistic for the respondents’ demographic data and the Rasch measurement model that applied the Winsteps version 3.70 software in order to analyse the data on reliability, item fit, and item measure for roles hierarchy. The result of the study shows that the roles hierarchy consisted of 29 essential tasks a graduate should deal with in order to thrive in the labour market after graduation. Correspondingly, building maintenance and conservation, building control administration, building inspection, risk management and building audit, building works and quality, and building insurance are the essential roles there are based on the hierarchy level that has been extracted by the six components. This study contributes to the body of knowledge in the Malaysia context, in particular for the general international building surveying community as it reveals a roles hierarchy that graduates are required to perform, and where it will provide awareness on the existence of the building surveying vocation among other the non-allied construction professionals in Malaysia.

Analisis Biaya Pemeliharaan Bangunan Gedung Dengan Konsep Green building Dan Bangunan Gedung Dengan Konsep Non Green building

The concept of green building must also consider the cost of building maintenance in the post-construction stage so as not to reduce the large company costs each year. Green building is defined as a high-performance building that is made environmentally friendly, economically beneficial and healthy for life and workplace. This study intends to analyze the cost of building maintenance using the concept of green building non-green building. The data used in this study is the data on the maintenance costs of green buildings and non-green buildings. This data was taken by surveying the building management directly. Based on the analysis, the difference in the cost of maintaining green buildings and non-green buildings is Rp 10,283.22/m2/year. Based on the calculation, the maintenance costs of green building and non-green building still conform the standards of the Minister of Public Works Regulation and the standard of the Minister of Finance Regulation.

A FRAMEWORK TO ENHANCE THE PRACTICE OF MAINTENANCE BUDGETING IN COMMERCIAL BUILDINGS IN SRI LANKA

Inadequate budget control is one of the major challenges that adversely affect the maintenance of a building. The cost of plant asset maintenance of the commercial building is a larger proportion of the overall cost of operation. It is important to allocate financial resources appropriately so that, before serious damage occurs, maintenance measures can be taken. Accordingly, a well-defined maintenance budget (MB) makes it possible to recognise opportunities for creating continuous business performance improvements within the financial constraints of a company. Although required building maintenance can be carried out successfully with an adequate budget, the budget is not well defined in current industrial practice and Sri Lanka is most likely dealing with the same problem. Thus, this study aimed to develop a framework to enhance the practice of a well-defined MB for commercial buildings in Sri Lanka. The qualitative approach was adopted to address this study. A comprehensive literature review was done and five case studies were performed using ten semi-structured interviews to collect the primary data. The interviewees were selected based on their knowledge in the field of maintenance cost planning. Data were analysed through content analysis using both manual and NVivo 12 software. The research finding revealed that prime barriers of prepare an accurate MB are poor planning of maintenance work and resources, faulty maintenance, changes in country market condition, and poor financial support. The key strategies to overcome the barriers are to select the right budget method, arise awareness of top management about building maintenance and avoid faulty maintenance.

Prospects for Improving Building Maintenance Management in Nigerian Public Universities: A Case Study of Nnamdi Azikiwe University

Buildings are highly resourceful in the effective operation of tertiary institutions. It is imperative that these assets should be given good maintenance attention for effective performance. Public institutions have always been faced with ineffective maintenance of buildings due to bureaucratic constraints and poor maintenance culture. This study is aimed at establishing prospects for improving maintenance management and performance of buildings in public universities in Nigeria, using Nnamdi Azikiwe University as a case study. The study adopted a survey research approach using a structured questionnaire. A total of 148 responses were gotten from the Works and Services Department and Heads of academic departments out of 203 distributed questionnaires, being a 72.9% response rate. The questionnaire was analyzed using descriptive statistics technique. The study variables were examines using mean, with an acceptance benchmark of 3 and above. This implies that any issue that has the mean of the responses to be 3.0 will be regarded as “agreed”, while those whose mean of their responses are less than 3.0 will be regarded as “disagreed”. Mean and standard deviation of each item were determined, and ranking were then assigned to them. From the research findings, it is evident that there are statistically significant prospects for improving on the poor state of building maintenance management in the study area. The study therefore recommends that adoption and deployment of computerized maintenance management system that would handle all aspects of users’ reporting and feedback, scheduling and coordination of activities; intensive training and retraining program for the maintenance personnel, orientation programs for building users on healthy maintenance culture and regular building condition survey should be incorporated as prospects for improving building maintenance management in the study area.

Analysis of the Impact of Input Data on the Planned Costs of Building Maintenance

The aim of the article is to analyze the method of determining the maintenance costs of buildings based on the method proposed in Polish legal regulations. The analysis of the sensitivity of the method shows that the assumed number of product use cycles during the calculation period has the greatest impact, while the adopted warranty period has the lowest impact. A multi-functional building combining housing, office, service and commercial was analyzed in order to obtain a broader picture of the model’s operation. The results of the analyses allow us to conclude that despite the higher price of materials, the most durable solutions, which are the most expensive to purchase, turn out to be the most advantageous in the entire life cycle of the building. The method proposed in Polish law regulations has certain limitations. In order to level them, it was proposed to extend the method by using NPV (Net Present Value) for calculations and extending the life cycle of the building to 80 years.

Investigation of factors responsible for deterioration of building structures in tertiary institutions

Purpose: This research focused on determining factors responsible for deterioration of building structures in Tertiary institutions. Method: The methodology involved survey design, review of related literature, two sets of structured questionnaires, direct observations, walkthrough evaluations, interviews and photographs. The sample techniques involved both purposive and stratified random sampling applied on a population of 1300 staff, students and 84 buildings respectively. Data was analyzed using frequencies, percentages and mean scores. Pearson correlation coefficient, regression analysis and student t-test were employed in testing the hypotheses. Findings: Results revealed that structural elements were defective and building components in poor condition of maintenance. The study revealed also that maintenance of buildings in the institutions is not effective. The research concluded that lack of building maintenance, funding and management decision play an important role in the physical condition of buildings which in turn affect staff productivity and students’ academic achievement. Originality: The related literature analysis shows that no research work has being formulated from the case study on the generated research topic. It shows the originality of this research which emerges from the knowledge gap of the related reviewed literatures.