A Study of Selection Influencing Factors for Status Grade Evaluation of the Steel Pipe Supports Based on IF–Matrix and SI–Index

초록

Status grade evaluation work for steel pipe supports is essential to identify the damage level of the repeated and reused steel pipe supports and bring the steel pipe supports with guaranteed performance to the construction site. However, status grade evaluation of steel pipe supports was analyzed that consistency and reliability of the evaluation results were insufficient because the quality manager of temporary equipment rental companies mainly used qualitative methods such as a visual inspection to evaluate the status of the steel pipe supports. Analysis of relevant criteria has revealed that there was no basis for the item and the item’s threshold value for status grade evaluation criteria of the steel pipe supports. This study aims to select the influencing factors for status grade evaluation of the steel pipe supports and to develop the criteria(draft) for the status grade criteria based on the selected influencing factors. A total of 26 influencing factors were selected. At least 71.0% of the respondents answered that the developed steel pipe supports status grade criteria(draft) was appropriate. it is expected that influencing factors for status grade evaluation of the steel pipe supports and steel pipe supports status grade criteria(draft) will provide a basic framework for improving the status grade criteria for steel pipe supports. © 2021 Architectural Institute of Korea.

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