- Volume 33 Issue 1
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Field Survey on Suitable In-service Wind Speed Limit for Tower Crane Operation
타워크레인의 작업 중지 풍속에 대한 현장 실태 조사 연구
- Lee, Eui Ju (Department of Safety Engineering, Pukyong National University) ;
- Shin, Sung Woo (Department of Safety Engineering, Pukyong National University)
- Received : 2018.02.07
- Accepted : 2018.02.21
- Published : 2018.02.28
Since tower cranes are susceptible to wind loads, the operation of the tower crane should be ceased when it exposed to a strong wind. For this reason, even in Korea, the operation limit for wind loading on the tower crane is regulated by a law. Recently the Korean law in which provided the wind speed limit to cease the tower crane operation has been revised from "instantaneous wind speed of 20 m/s" to "instantaneous wind speed of 15 m/s". Although this revision is expected to reduce safety risks in tower crane operation, some field operators still insist to lower the wind speed limit. However, in many countries "wind speed of 20 m/s" is normally used as the maximum in-service wind speed for tower cranes. Therefore, the investigation of the proper wind speed for regulation would be helpful to secure the safety of the tower crane operation under windy condition. In this study the validity of the revised wind speed limit is investigated with the surveys targeted to both tower crane practitioners and parties of concerned in construction companies, in which various questions was provided for a suitable wind speed limit and the answers were analyzed. The results showed that the revised wind speed limit is acceptable to tower crane practitioners as well as the parties of concerned in construction companies and is satisfying the structural stability requirement for in-service state tower crane. Therefore, it can be concluded that the revised wind speed limit is valid in humanly safety point of view.
- L. K. Shapiro and J. P. Shapiro, 'Cranes and Derricks 4th edition', McGraw-Hill, New York, USA, 2011.
- A. King, 'Analysis of Crane and Lifting Accidents in North America from 2004 to 2010', Master Thesis, Department of Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), USA, 2011.
- Act No. 182 of Ministry of Employment and Labor, Korean Government, Republic of Korea.
- Notification No. 2015-662 of Ministry of Land Infrastructure and Transport, Korean Government, Republic of Korea.
- I. C. Park, 'A Study on Out-of-Service Wind Speed Criteria for Tower Crane', Research Report, Korea Occupational Safety and Health Research Institute, 2014.
- C. S. Durst, "Wind Speeds Over Short Periods of Time", Meteorological Magazine, Vol. 89, pp.181-186, 1960.
- J. D. Ginger, J. D. Holmes and B. A. Harper, "Gust Wind Speeds for Design of Structures", Proceedings of the 8th Asia-Pacific Conference on Wind Engineering (APCWE), Chennai, India, 2013.
- E. M. Abdel-Rahman, A. H. Nayfeh and Z. N. Masoud, "Dynamics and Control of Cranes: A Review", Journal of Vibration and Control, Vol. 9, Issue 7, pp. 863-908, 2003.
- J. D. Holmes, 'Wind Loading of Structures 3rd edition', CRC Press, Florida, USA, 2015.
- F. Ju, Y. S. Choo and F. S. Cui, "Dynamic Response of Tower Crane Induced by the Pendulum Motion of the Payload", International Journal of Solids and Structures, Vol. 43, pp. 376-389, 2006. https://doi.org/10.1016/j.ijsolstr.2005.03.078
- E. Simiu and R. H. Scanlan, 'Wind Effects on Structures 3rd edition', John Wiley and Sons, New York, USA, 1996.
- Y. Tamura and A. Kareem, 'Advanced Structural Wind Engineering', Springer, Tokyo, Japan, 2013.
- D. Y. Kim, "A Fundamental Study on Safety Management for High-rise Building Tower Crane Operators", Journal of Architectural Institute of Korea (Structure), Vol. 29, No. 2, pp. 59-66, 2013.
- K. Shim and D. Rie, "A Quantitative Risk Analysis of Related to Tower Crane Using the FMEA", J. Korean Soc. Saf., Vol. 25, No. 6, pp. 34-39, 2010.
- W. C. Shin and Y. S. Hong, "The Development of the Slope Monitoring System(SMS) of the Tower Crane", J. Korean Soc. Saf., Vol. 25, No. 6, pp. 60-64, 2010.
- D. Y. Kim, "A Fundamental Study on High-rise Building Worker Management Related to Climate Elements and Psychological Responses", Journal of Architectural Institute of Korea (Structure), Vol. 29, No. 3, pp. 105-112, 2013.