Simplified Analytical Methods to Analyze Lock Gates Submitted to Ship Collisions and Earthquakes

Open access

Abstract

This paper presents two simplified analytical methods to analyze lock gates submitted to two different accidental loads. The case of an impact involving a vessel is first investigated. In this situation, the resistance of the struck gate is evaluated by assuming a local and a global deforming mode. The super-element method is used in the first case, while an equivalent beam model is simultaneously introduced to capture the overall bending motion of the structure. The second accidental load considered in this paper is the seismic action, for which an analytical method is presented to evaluate the total hydrodynamic pressure applied on a lock gate during an earthquake, due account being taken of the fluid-structure interaction. For each of these two actions, numerical validations are presented and the analytical results are compared to finite-element solutions.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • [1]. Buldgen L. Le Sourne H. Rigo P. (2012). Simplified analytical method for estimating the resistance of lock gates to ship impacts Journal of Applied Mathematics Vol. 2012 2012 pp. 1-39.

  • [2]. Buldgen L. Le Sourne H. Rigo P. (2013). Fast strength assessment of mitre gates to ship impact International Journal of Crashworthiness Vol. 18 pp. 1-21.

  • [3]. Le Sourne H. Rodet J.C. Clanet C. (2002). Crashworthiness analysis of a lock gate impacted by two river ships International Journal of Crashworthiness Vol. 7 pp. 371-396.

  • [4]. Buldgen L. Le Sourne H. Rigo P. 2013. A simplified procedure to assess the strength of a ship impacting a lock miter gate Proceedings of the ASME 2013 32nd International Conference on Ocean Offshore and Arctic Engineering.

  • [5]. Zhang S.M. (1999). The mechanics of ship collisions PhD Thesis Department of Naval Architecture and Offshore Engineering Technical University of Denmark.

  • [6]. Hong L. Amdahl J. (2008). Crushing resistance of web girders in ship collision and grounding Marine Structures Vol. 21 pp. 374-401.

  • [7]. Simonsen B.C. (1998). Ship grounding on rock - I. Theory Marine Structures Vol. 10 pp. 519-562.

  • [8]. Simonsen B.C. Ocakli H. (1999). Experiments and theory on deck girder crushing Thin-Walled Structures Vol. 34 pp. 195-216.

  • [9]. Amdahl J. (1983). Energy Absorption in ship-platform impact PhD Thesis Department of Marine Technology Norwegian University of Science and Technology.

  • [10]. Buldgen L. (2015) Simplified analytical methods for the crashworthiness and the seismic design of lock gates PhD Thesis Structural Engineering Department University of Liège.

  • [11]. Westergaard H.M. (1933). Water pressure on dams during earthquakes Transactions of the American Society of Civil Engineers Vol. 98 pp. 418-433.

  • [12]. Haroun M.A. (1984). Stress analysis of rectangular walls under seismically induced hydrodynamic loads Bulletin of Seismological Society of America Vol. 74 pp. 1031-1041.

  • [13]. Housner G.W. (1974). Dynamic pressures on accelerated fluid containers Bulletin of Seismological Society of America Vol. 47 pp. 15-37.

  • [14]. Ibrahim R.A. (2005). Liquid sloshing dynamics: theory and applications Cambridge University Press.

  • [15]. Epstein H.I. (1976). Seismic design of liquid storage tanks Journal of the Structural Division Vol. 102 pp. 1659-1673.

  • [16]. Shames I.H. & Dym C.L. (1995). Energy and finite element methods in structural mechanics New Age International.

  • [17]. Leissa A.W. (1973). The free vibration of rectangular plates Journal of Sound and Vibration Vol. 31 pp. 257-293.

  • [18]. Buldgen L. Gazerzadeh A. Bela A. Rigo P. Le Sourne H. (2014). A simplified procedure to assess the dynamic pressures on lock gates Proceedings of the ICTWS 2014 7th Conference on Thin-Walled Structures.

  • [19]. Kim J.K. Koh K.H. Kwahk I.J. (1996). Dynamic response of rectangular flexible fluid containers Journal of Engineering Mechanics Vol. 122 pp. 807-817.

  • [20]. Forsyth G. Porteous A. (2000). The design and construction of seismically qualified steel caissons at Rosyth Royal Dockyard The Structural Engineer Vol. 78 pp. 24-31.

  • [21]. Hallquist J.O. (2006). LS-DYNA theoretical manual Livermore Software Technology Corporation.

Search
Journal information
Metrics
All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 228 130 1
PDF Downloads 100 69 1