Effects of Ice-Breaking Nose Shapes on Drift Ice Impact Forces
by Tianlai Yu, (Professor, College of Civil Engineering, Northeast Forestry Univ., No. 26 Hexing Road, Xiangfang District, Harbin 150040, P. R. China. E-mail: bosstumu@163.com), Sidi Shan, (Research Assistant, College of Civil Engineering, Northeast Forestry Univ., No. 26 Hexing Road, Xiangfang District, Harbin 150040, P. R. China.), and Chengyu Li, P.E., (corresponding author), M.ASCE, (Assistant Professor, Univ. of Colorado Denver, Campus Box 113, P.O. Box 173364, Denver, CO 80217. E-mail: cheng.li@ucdenver.edu)
Journal of Cold Regions Engineering, Vol. 26, No. 1, March 2012, pp. 16-27, (doi: http://dx.doi.org/10.1061/(ASCE)CR.1943-5495.0000036)
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| Document type: |
Journal Paper |
| Abstract: |
By using ANSYS/LS-DYNA explicit dynamical analysis software, finite element models for an ice sheet and a T-frame bridge were set up individually. On the basis of the deformation compatibility condition and momentum equation, the impact force of a drift ice sheet on a bridge pier was computed. The effects of ice-breaking nose shapes on the ice impact force were investigated. The parameters studied included the nose angle of a wedge-shaped ice-breaking nose, the inclination angle of both wedge-shaped and bow-shaped ice-breaking noses, and the curvature of a bow-shaped ice-breaking nose. The research results indicated that the inclination and nose angle of a wedge-shaped ice-breaking nose and the curvature and inclination angle of a bow-shaped ice-breaking nose are important factors affecting the drift ice impact force. On the basis of the study results, design parameters for the ice-breaking nose shapes were proposed. |
| Author Keywords: | 
| Ice sheet |
| Ice impact force |
| Ice-breaking nose |
| Bridge pier |
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