단관 파이프의 좌굴특성에 대한 수평연결재 및 기울기의 영향 = Effect of Horizontal Connection and Slope on Buckling Characteristics of Single Pipe

다국어 초록 (Multilingual Abstract)

The number of collapse accidents relevant to form support since 2003 is 30 on the basis of statistical data from Ministry of Employment and Labor,. Total number of casualty was 138 (47 for deaths and 91 for injuries). The accident severity rate was high because the 4.6 casualties per one accident were occurred averagely although the incident rate was relatively low. Especially, one of form support members, the pipe supports have not been equipped adequately so that the accidents could have happened. In this regard, this study performed buckling test related to the effect of horizontal connection and slope in the single pipe which is one of typical pipe supports. The buckling load, which was estimated from the single pipe with the horizontal connectors theoretically and experimentally, was increased as more than 2 times compared to the buckling load obtained from the pipe supports without the connector. The buckling load was reduced as more than 26%, 34% slope of the single pipe comparing with 5% and 10% slope, respectively. Thus, the purpose of this study is to provide the guideline for installation and the maintenance of the pipe supports legally and institutionally to prevent the collapse accidents of the pipe supports.

참고문헌 (Reference)

1 백신원, "파이프서포트(V6)의 좌굴특성에 관한 연구" 한국안전학회 26 (26): 59-62, 2011

2 Ministry of Employment and Labor, "Current Status of the Industrial Accident" 2014

3 F. C. Hadripriono, "Analysis of Cause of Falsework Failures in Concrete Structures" 112 (112): 112-121, 1986

4 A. P. Boresi, "Advanced Mechanics of Materials" John Wiley & Sons, Inc. 1993

5 Y. O. Lee, "A Proposed Method of the Strength Calculation of Pipe Support" 16 (16): 59-64, 2001