Analysis and Mitigation Strategies of Installation Work Interruptions in Precast Concrete Columns: A Case Study in Korean Logistics Facility

Abstract

This study observes and quantitatively analyzes work interruptions during the installation of precast concrete (PC) columns at a logistics facility center construction project in Korea, identifying the causes, frequency, and duration of interruptions. Work interruptions were categorized into pre-installation and during-installation based on when they occurred, the causes were classified into eight flows, and the probability of work interruptions was calculated for each work step. Common causes include labor issues, materials delays, and equipment malfunctions, impacting project time and cost. The research suggests mitigation strategies such as increasing the number of labors, preparing equipment and materials, conducting crane maintenance, and training in equipment usage to enhance work efficiency and manage interruptions effectively. This study provides valuable baseline data for improving PC project management, serving as a reference for future projects to reduce time and costs and contributing to overall project success. Future research should expand data collection across various sites and component types to refine interruption probability calculations and develop more sophisticated installation planning and resource management strategies