Document Type : Research Article
Authors
1
School of Civil Engineering, Iran University of Science and Technology, P.O. Box 16765-163, Narmak, Tehran, Iran
2
Associate Professor, School of Civil Engineering, Iran University of Science and Technology, P.O. Box 16765-163, Narmak, Tehran, Iran.
Abstract
Today, due to the complexity of construction projects, Building Information Modeling (BIM) is used to increase accuracy and speed and avoid the cost of rework in a building's construction cycle. One of the most important functions of BIM technology in the design and construction phase is the identification of clashes and their reporting. The purpose of this study is to classify and prioritize the serious clashes between the two disciplines of structures and MEP. To do this, each structure type and MEP element must be assigned the required weight, which is done using the best-worst method (BWM). The corresponding questionnaire is distributed to nine BIM experts. With the help of weights and the outputs of the Navisworks software, the process of prioritizing clashes and the methods of eliminating clashes are carried out. Of the structural elements, 32% are accounted for by each beam and column element, 19% by the foundation, 13% by lateral bracing systems and 4% by the structural floor. Due to the many elements of the MEP, they are divided into six groups. The weighting of MEPs (costs) is 39% for group five, 22% for group two, 15% for group six, 11% for group three, 9% for group four and 4% for group one. Additionally, the MEP weight (time) items are 39% for group five, 20% for group six, 14% for each item from groups two and three, 8% for group four, and 5% for group one.
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