PC 모듈러 접합 공법의 연구 동향 및 시공성 향상 방안

초록

This study analyzes the research trends in PC modular connection technology and proposes measures for improving constructability using text mining techniques and expert surveys. Accordingly a keyword dictionary was developed based on domestic and overseas academic literature, and both TF and TF-IDF methods were applied to analyze the frequency and importance of connection-related technologies. The results show that, in the TF-based analysis, bolted connections appeared most frequently. However, in the TF-IDF analysis, grouted-sleeve and post-tensioned connection methods exhibited higher importance. This indicates that while bolted connections are widely mentioned across many studies, the main focus of research in PC modular connection technology primarily focuses on grouted-sleeve and post-tensioned connection systems. In addition, the expert survey revealed that major constructability issues arise from insufficient precision in high-difficulty connections, particularly during module alignment in both vertical and horizontal directions. As for improvement measures, trapezoidal connection forms and semi-dry connection methods were identified as effective solutions for enhancing constructability. This study is significant in that it quantitatively analyzes research trends in PC modular connection technology using text mining and proposes constructability improvement strategies based on expert surveys. Future research should include more comprehensive text-mining analyses using full-text datasets and quantitative validation based on actual construction data.

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