Abstract
One of the major issues of the construction industry has been the “reworks” that affect the time, quality, and cost of projects. Therefore, reworks and the ineffective use of site resources and materials will always result in significant losses on projects. The development of information technology has led to the widespread use of Building Information Modelling (BIM) to enhance the delivery of more sustainable building construction projects. The purpose of this study is to combine the Step-wise Weight Assessment Ratio Analysis (SWARA) method and BIM technologies to identify and reduce time delays caused by reworks in construction projects. Firstly, 49 rework causes in residential buildings were identified and ranked. Then, BIM was generated and compared to the initial model. It was observed that working hours were reduced by 4.6%. Moreover, using an Earned Value Management (EVM) system, a 0.06 increase in Schedule Performance Index (SPI) factor was illustrated. Results obtained by this study provide an effective step in reducing a project’s time in the construction industry.
Highlights
Rework is regarded as a serious issue for construction industry projects [1]
The computed values are still different from the actual values of the case study, the results show the advantages of using Building Information Modelling (BIM) in a case study model
Results showed that the most important causes in the abovementioned groups were “Design Errors (A1)”, “Difference among Plans and Operational Specifications (B3)”, “Non-compliance with Specifications (C1)”, “Insufficient Skill Level (D1)”, “Unrealistic Schedules (E1)”, “Poor Communication (F4)” and “Economic Fluctuations (G2)”. This was followed by Building Information Modelling for the selected case study using BIM software
Summary
Rework is regarded as a serious issue for construction industry projects [1]. Schedule, performance, and productivity of construction projects are influenced by reworks [2]. Cost and schedule overruns often occur due to rework in construction projects [2,3]. Rework costs range from 5% to 20% in major civil engineering projects [4,5]. Its roots and causes must be identified first [1,6]. Many studies have been conducted to identify such causes [1,6,7,8,9,10]. Managers are highly recommended to identify factors which result in rework in the planning phase of projects [1]
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