A BIM-Based Quality Inspection System Prototype for Temporary Construction Works

Abstract

In the construction project, the temporary work is the construction work, which is installed temporarily for the construction of main structure and removed after its completion. Even though it is a temporary facility used and demolished only during the construction phase, it accounts for about 10% of the total construction cost. In addition, it is an important work directly connected to the cost and quality of construction, so that the completeness of the building depends on the technology of the temporary work. Therefore, it is necessary to manage it through systematic quality inspection activities. In order to perform a systematic quality inspection, it is essential that detailed and specific inspection activities, such as inspecting the conformity of the design and construction and its compliance with relevant standards based on construction inspection information, such as drawings, specifications, and checklists, are carried out. However, most of the construction inspection information about the temporary work does not include any specific information in documents (drawings, specifications, etc.). Additionally, the direct temporary work among the temporary works is treated as an auxiliary work of the main structure work in the construction site, although it is the construction work based on the work breakdown structure. Accordingly, the quality control engineer must manually check only the contents of the temporary work among the construction inspection information that covers the overall construction work. Additionally, the probability of human error is increased, as the quality control engineer manually carries out the quality inspection tasks, such as preparing the inspection-related materials and checklist and writing the inspection result report. This leads to inefficiency and problems such as re-provisioning for inspection and re-inspection. Therefore, it is necessary to construct a business process that can efficiently carry out the quality inspection work by complementing and improving the above problems involving the temporary work, which is performed most inefficiently. In this study, a BIM-based quality inspection system prototype for temporary works was developed that can automate tasks and systematically store and manage various types of inspection information for each of the temporary facilities in order to improve the efficiency of the quality inspection carried out by the quality control engineer. As a result, a process designed to improve the quality inspection of the temporary work, which can perform the quality inspection work, is proposed. Additionally, the quality of the works related to quality control is improved through improvements in the accuracy and efficiency of the works and simplification of the existing manual work procedures through the proposed business improvement process.