Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Dynamic Characteristic of Lift Gate Supported by Plane Truss

평면트러스로 지지된 리프트 게이트의 진동특성

  • 이성행 (부산대학교 사회환경시스템공학부) ;
  • 양동운 ((주)한양 간월호준설공사) ;
  • 함형길 (부산대학교 사회환경시스템공학부) ;
  • 공보성 (부산대학교 사회환경시스템공학부 대학원) ;
  • 신동욱 (부산대학교 사회환경시스템공학부 대학원)
  • Received : 2012.03.06
  • Accepted : 2012.05.16
  • Published : 2012.05.31
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Abstract

Dynamic characteristic of lift gate supported by plane truss is studied by a model test scaled with the ratio of 1 : 31.25 in the four major rivers project. The vibrations of gate supported by the plane truss is assessed in comparison with those of gate supported by the space truss which was tested formerly. The gate model is made of acryl panel and calibrated by lead. A model test is conducted under the different gate opening and upstream water levels conditions in the concrete test flume dimensioned 1.6 m in width, 0.8 m in height and 24 m in length. In order to verify the model, natural frequencies of the model gate are measured, and compared with the numerical results. The vibrations of gate model supported by the plane truss in opening height of 1.0 cm~2.0 cm shows greater than one supported by the space truss. It is found that the gate model supported by the plane truss is less desirable than one supported by the space truss. thus, the latter type of gate model is requested to design.

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References

  1. Gajanan, M. S., Harry, G. H., Richard, N. W., and Saeed, M., 1983. Structural Modeling and Experimental Techniques. Prentice-Hall Civil Engineering and Engineering Mechanics Series: 1-60.
  2. KARICO (Korea Agricultural & Rural Infrastructue Corporation), 1995. A Report on Hydraulic Experiment and Wave Observations in Saemankeum project: 505-570.
  3. KARICO (Korea Agricultural & Rural Infrastructue Corporation), 2001. A Report on Structural Safety Assessment of Sluice Gate in Hwaong Project: 14-46.
  4. Kolkman, P. A., 1976. Flow-induced Gate Vibrations. Prevention of Self-excitation. Delft Hydraulics laboratory, Publication no. 164: 1-162.
  5. Lee, S. H., 2004. Model Tests Study on Flow-induced Vibration of Tainter gate in Estuary Sulices (I). Journal of the Korean Society of Agricultural Engineers 46(1): 27-34 (in Korean). https://doi.org/10.5389/KSAE.2004.46.1.027
  6. Lee, S. H., 2004. Model Tests Study on Flow-induced Vibration of Tainter gate in Estuary Sulices (II). Journal of the Korean Society of Agricultural Engineers 46(2): 41-48 (in Korean). https://doi.org/10.5389/KSAE.2004.46.2.041
  7. Lee, S. H., Kim, H. J., Park, Y, J., Hahm, H, G., and Kong, B. S., 2011. Model Tests Study on Flow-induced Vibration of Truss Type Lift Gate. Journal of the Korean Society of Agricultural Engineers 46(1): 27-34 (in Korean).
  8. Lee, S. H., Kim, K. N. and Jung, K. S., 2005. Dynamic Characteristic of Tainter Gate in Multi-Purpose Dam. Journal of the Korean Society of Civil Engineers 25(I-A): 173-181 (in Korean).
  9. Lee, S. H. and Jung, K. S., 1996. Model Tests Study on Self-excited Vibration of Tainter Gate. Journal of the Korean Society of Civil Engineers 16(I-2): 187-194 (in Korean).
  10. Lee, S. H., Jung, K. S., Koo, B. K., and Kim K. H., 1998. Dynamic Analysis on the Flow-induced Vibration of Tainter Gate due to Bottom Shape. Journal of the Korean Society of Civil Engineers 18(I-4): 399-409 (in Korean).
  11. Schmidgall, T., 1972. Spillway Vibrations on Arkansas River Dams. Proc. Journal of Hydrauilcs Division, ASCE, Jan., No. HY1, Proc. Paper 8676: 219-238.
  12. Thang, N. D., 1990. Gate Vibrations due to Unstable Flow Separation. Journal of Hydraulics Engineering 116(3): 342-361. https://doi.org/10.1061/(ASCE)0733-9429(1990)116:3(342)